Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
349
FNUS51 KLWX 201833
FWFLWX
Fire Weather Planning Forecast FOR W and CTL MD...E WV...N VA...DC
National Weather Service Baltimore MD/Washington DC
232 PM EDT Thu Aug 20 2026
.DISCUSSION...
A cold front will slowly approach from Pennsylvania today as a warm
front approaches from the Virginia Tidewater and Delmarva Peninsula.
Multiple weak waves of low pressure along these boundaries will
ignite scattered to numerous showers and thunderstorms. Some storms
may be severe particularly east of the Blue Ridge and Catoctin
Mountains, and especially across the Interstate 95 corridor toward
the Chesapeake Bay. This frontal system is expected to stall near or
just southeast of the Mid-Atlantic, and additional ripples of low
pressure riding along it may result in periodic showers and a few
thunderstorms at times through the upcoming weekend.
VAZ054-210800-
Arlington/Falls Church/Alexandria-
Including the cities of Reagan National Airport, Arlington,
Ballston, Barcroft, Cherrydale, Rivercrest, and Rosslyn
232 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Pcldy Pcldy Mcldy Cloudy
Precip Type Tstms None Tstms Tstms
Chance Precip (%) 40 0 70 70
Chance of Thunder (%) 20 0 30 30
Temp (24h trend) 66 (-7) 83 (-5) 68 83
RH % (24h trend) 99 (+14) 67 (+8) 100 72
Wind 20ft/early(mph) N 5 N 5 Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.27 0.00 0.17 0.13
Precip Duration 2 3 9
Precip Begin 6 PM 10 PM Continuing
Precip End 11 PM Continuing Continuing
Mixing Hgt(ft-agl/msl) 4210 3620
Transport Wnd (mph) E 6 S 8
Vent Rate (kt-ft) 21050 25340
Max ADI Early 27 Fair 28 Fair 24 Fair 21 Fair
Max ADI Late 7 Poor 31 Fair 5 Very Poor 31 Fair
Max LVORI Early 6 7 6 9
Max LVORI Late 6 3 8 4
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY...Mostly cloudy. A chance of showers and thunderstorms.
Lows in the upper 60s. Highs in the mid 80s. West winds 5 to
10 mph.
.MONDAY...Mostly clear. Lows in the mid 60s. Highs in the lower
80s. West winds 5 to 10 mph.
.TUESDAY...Mostly clear. Lows in the mid 60s. Highs in the lower
80s. Northwest winds 5 to 10 mph.
.WEDNESDAY...Partly cloudy. A chance of showers and
thunderstorms. Lows in the upper 60s. Highs in the upper 80s.
South winds 5 to 10 mph.
.THURSDAY...Mostly cloudy. A chance of showers. Lows in the lower
70s. Highs in the upper 80s. Southwest winds 5 to 10 mph.
$$
VAZ055-210800-
Stafford-
Including the cities of Arkendale, Garrisonville, Shiloh,
Widewater, Brookfield, Falmouth, and Glendie
232 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Pcldy Pcldy Mcldy Mcldy
Precip Type Tstms None Tstms Tstms
Chance Precip (%) 50 0 70 60
Chance of Thunder (%) 20 0 30 20
Temp (24h trend) 65 (-5) 83 (-7) 66 84
RH % (24h trend) 100 (+5) 71 (+15) 100 74
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.09 0.00 0.16 0.24
Precip Duration 2 4 9
Precip Begin 6 PM 6 PM Continuing
Precip End 11 PM Continuing Continuing
Mixing Hgt(ft-agl/msl) 3830 3400
Transport Wnd (mph) NE 5 S 7
Vent Rate (kt-ft) 15320 20400
Max ADI Early 33 Fair 27 Fair 19 Gen Poor 21 Fair
Max ADI Late 5 Very Poor 27 Fair 3 Very Poor 32 Fair
Max LVORI Early 9 8 8 9
Max LVORI Late 9 4 9 4
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY...Mostly cloudy. Lows in the upper 60s. Highs in the mid
80s. Northwest winds around 5 mph.
.MONDAY...Mostly clear. Lows in the lower 60s. Highs in the lower
80s. Northwest winds around 5 mph.
.TUESDAY...Mostly clear. Lows in the lower 60s. Highs in the
lower 80s. Northwest winds around 5 mph.
.WEDNESDAY...Partly cloudy. A chance of showers and
thunderstorms. Lows in the mid 60s. Highs in the upper 80s. South
winds around 5 mph.
.THURSDAY...Mostly cloudy. A chance of showers. Lows in the upper
60s. Highs in the upper 80s. Southwest winds around 5 mph.
$$
VAZ056-210800-
Spotsylvania-
Including the city of Fredericksburg
232 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Pcldy Pcldy Mcldy Mcldy
Precip Type Tstms None Tstms Tstms
Chance Precip (%) 50 0 70 50
Chance of Thunder (%) 20 0 30 20
Temp (24h trend) 64 (-6) 82 (-8) 66 84
RH % (24h trend) 100 (+3) 73 (+17) 100 75
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.15 0.00 0.31 0.14
Precip Duration 2 5 3
Precip Begin 6 PM 6 PM Continuing
Precip End 12 AM Continuing Continuing
Mixing Hgt(ft-agl/msl) 3600 3700
Transport Wnd (mph) E 6 SW 8
Vent Rate (kt-ft) 18000 25900
Max ADI Early 33 Fair 23 Fair 20 Gen Poor 20 Gen Poor
Max ADI Late 5 Very Poor 26 Fair 3 Very Poor 34 Fair
Max LVORI Early 9 9 10 9
Max LVORI Late 9 4 9 4
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY...Mostly cloudy. Lows in the mid 60s. Highs in the mid
80s. West winds around 5 mph.
.MONDAY...Mostly clear. Lows in the lower 60s. Highs in the lower
80s. West winds around 5 mph.
.TUESDAY...Mostly clear. Lows around 60. Highs in the lower 80s.
Northwest winds around 5 mph.
.WEDNESDAY...Partly cloudy. A chance of showers and
thunderstorms. Lows in the lower 60s. Highs in the mid 80s. South
winds around 5 mph.
.THURSDAY...Mostly cloudy. A chance of showers. Lows in the upper
60s. Highs in the upper 80s. Southwest winds around 5 mph.
$$
VAZ057-210800-
King George-
Including the cities of Rollins Fork and Dahlgren
232 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Pcldy Mcldy Mcldy
Precip Type Tstms None Tstms Tstms
Chance Precip (%) 60 0 70 60
Chance of Thunder (%) 20 0 30 20
Temp (24h trend) 67 (-5) 82 (-7) 68 82
RH % (24h trend) 100 (+5) 74 (+14) 100 78
Wind 20ft/early(mph) N 5 N 5 Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.16 0.00 0.35 0.23
Precip Duration 3 5 9
Precip Begin 6 PM 6 PM Continuing
Precip End 12 AM Continuing Continuing
Mixing Hgt(ft-agl/msl) 3470 3350
Transport Wnd (mph) NE 6 S 9
Vent Rate (kt-ft) 17350 26800
Max ADI Early 23 Fair 22 Fair 18 Gen Poor 24 Fair
Max ADI Late 7 Poor 23 Fair 3 Very Poor 36 Fair
Max LVORI Early 9 9 9 10
Max LVORI Late 9 4 10 4
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY...Mostly cloudy. Lows in the upper 60s. Highs in the mid
80s. West winds around 5 mph.
.MONDAY...Mostly clear. Lows in the mid 60s. Highs in the lower
80s. Northwest winds around 5 mph.
.TUESDAY...Mostly clear. Lows in the mid 60s. Highs in the lower
80s. Northwest winds around 5 mph.
.WEDNESDAY...Partly cloudy. A chance of showers. Lows in the
upper 60s. Highs in the mid 80s. South winds 5 to 10 mph.
.THURSDAY...Mostly cloudy. A chance of showers. Lows around 70.
Highs in the mid 80s. Southwest winds 5 to 10 mph.
$$
WVZ502-210800-
Eastern Grant-
Including the cities of Cabins, Kline Gap, Landes, Masonville,
Petersburg, Seymourville, and Welton
232 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Pcldy Pcldy Pcldy Mcldy
Precip Type Tstms Tstms Tstms Tstms
Chance Precip (%) 30 50 50 70
Chance of Thunder (%) 20 30 30 30
Temp (24h trend) 60 (-4) 79 (+1) 62 83
RH % (24h trend) 100 (+2) 72 (-4) 100 64
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.03 0.04 0.10 0.10
Precip Duration 2 1 3 8
Precip Begin 6 PM 1 PM Continuing Continuing
Precip End 11 PM Continuing Continuing Continuing
Mixing Hgt(ft-agl/msl) 3210 3930
Transport Wnd (mph) SE 6 W 7
Vent Rate (kt-ft) 16050 23580
Max ADI Early 28 Fair 11 Poor 14 Gen Poor 13 Gen Poor
Max ADI Late 3 Very Poor 22 Fair 2 Very Poor 29 Fair
Max LVORI Early 8 9 7 9
Max LVORI Late 9 4 9 3
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY...Mostly cloudy. Lows around 60. Highs in the upper 70s.
West winds 5 to 10 mph.
.MONDAY...Mostly clear. Lows in the mid 50s. Highs in the mid
70s. West winds 5 to 10 mph.
.TUESDAY...Mostly clear. Lows in the mid 50s. Highs in the upper
70s. Northwest winds 5 to 10 mph.
.WEDNESDAY...Partly cloudy. A chance of showers and
thunderstorms. Lows in the upper 50s. Highs in the mid 80s.
Southwest winds around 5 mph.
.THURSDAY...Partly cloudy. A chance of showers and thunderstorms.
Lows in the lower 60s. Highs in the lower 80s. West winds around
5 mph.
$$
WVZ503-210800-
Western Mineral-
Including the cities of Piedmont and Sulphur City
232 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Pcldy Pcldy Pcldy Mcldy
Precip Type Tstms Tstms Tstms Tstms
Chance Precip (%) 30 30 40 70
Chance of Thunder (%) 20 20 20 30
Temp (24h trend) 57 (-6) 75 (+2) 59 78
RH % (24h trend) 100 (0) 71 (-14) 100 67
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.04 0.01 0.32 0.23
Precip Duration 2 1 3 8
Precip Begin 6 PM 3 PM Continuing Continuing
Precip End 11 PM Continuing Continuing Continuing
Mixing Hgt(ft-agl/msl) 3300 3310
Transport Wnd (mph) SE 8 W 8
Vent Rate (kt-ft) 23100 23170
Max ADI Early 40 Fair 15 Gen Poor 23 Fair 17 Gen Poor
Max ADI Late 3 Very Poor 31 Fair 3 Very Poor 31 Fair
Max LVORI Early 9 9 7 9
Max LVORI Late 9 4 9 4
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY...Mostly cloudy. A chance of showers. Lows around 60.
Highs in the lower 70s. West winds 10 to 15 mph.
.MONDAY...Mostly clear. Lows in the mid 50s. Highs in the lower
70s. West winds 10 to 15 mph.
.TUESDAY...Mostly clear. Lows in the lower 50s. Highs in the mid
70s. West winds 5 to 10 mph.
.WEDNESDAY...Partly cloudy. A chance of showers. Lows in the
upper 50s. Highs in the upper 70s. Southwest winds around 5 mph.
.THURSDAY...Partly cloudy. A chance of showers and thunderstorms.
Lows in the lower 60s. Highs in the upper 70s. West winds around
5 mph.
$$
WVZ504-210800-
Eastern Mineral-
Including the cities of Antioch, Keyser, New Creek, Ridgeville,
Russelldale, Headsville, and Fort Ashby
232 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Pcldy Pcldy Pcldy Mcldy
Precip Type Tstms None Tstms Tstms
Chance Precip (%) 30 0 50 70
Chance of Thunder (%) 20 0 20 30
Temp (24h trend) 60 (-6) 79 (+2) 62 82
RH % (24h trend) 100 (+1) 68 (-15) 100 67
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.04 0.00 0.19 0.21
Precip Duration 2 2 5
Precip Begin 6 PM 6 PM Continuing
Precip End 11 PM Continuing Continuing
Mixing Hgt(ft-agl/msl) 3900 3460
Transport Wnd (mph) SE 6 SW 6
Vent Rate (kt-ft) 19500 17300
Max ADI Early 16 Gen Poor 16 Gen Poor 13 Gen Poor 13 Gen Poor
Max ADI Late 3 Very Poor 28 Fair 2 Very Poor 23 Fair
Max LVORI Early 9 9 7 10
Max LVORI Late 10 4 9 4
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY...Mostly cloudy. Lows in the lower 60s. Highs in the
upper 70s. West winds 10 to 15 mph.
.MONDAY...Mostly clear. Lows in the upper 50s. Highs in the upper
70s. West winds 5 to 10 mph.
.TUESDAY...Mostly clear. Lows in the mid 50s. Highs in the upper
70s. West winds 5 to 10 mph.
.WEDNESDAY...Partly cloudy. Lows in the upper 50s. Highs in the
lower 80s. Southwest winds around 5 mph.
.THURSDAY...Partly cloudy. A chance of showers. Lows in the lower
60s. Highs in the lower 80s. West winds around 5 mph.
$$
WVZ505-210800-
Western Pendleton-
Including the city of Riverton
232 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Pcldy Mcldy Pcldy Mcldy
Precip Type Tstms Tstms Tstms Tstms
Chance Precip (%) 30 60 70 70
Chance of Thunder (%) 20 40 40 30
Temp (24h trend) 56 (-5) 74 (+2) 56 77
RH % (24h trend) 100 (+3) 79 (-3) 100 68
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var W 5
Precip Amount 0.03 0.14 0.13 0.05
Precip Duration 2 2 5 5
Precip Begin 6 PM 1 PM Continuing Continuing
Precip End 11 PM Continuing Continuing Continuing
Mixing Hgt(ft-agl/msl) 2260 4180
Transport Wnd (mph) SE 8 W 10
Vent Rate (kt-ft) 15820 37620
Max ADI Early 55 Gen Good 11 Poor 18 Gen Poor 18 Gen Poor
Max ADI Late 3 Very Poor 23 Fair 4 Very Poor 38 Fair
Max LVORI Early 9 9 9 9
Max LVORI Late 9 5 9 4
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY...Mostly cloudy. Lows in the upper 50s. Highs in the
upper 60s. West winds 10 to 15 mph.
.MONDAY...Mostly clear. Lows in the lower 50s. Highs in the upper
60s. West winds 10 to 15 mph.
.TUESDAY...Partly cloudy. Lows around 50. Highs in the lower 70s.
West winds 5 to 10 mph.
.WEDNESDAY...Partly cloudy. A chance of showers. Lows in the mid
50s. Highs in the mid 70s. Southwest winds 5 to 10 mph.
.THURSDAY...Mostly cloudy. A chance of showers and thunderstorms.
Lows in the upper 50s. Highs in the mid 70s. West winds 5 to
10 mph.
$$
WVZ501-210800-
Western Grant-
Including the cities of Beechwood, Wilsonia, and Bayard
232 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Pcldy Pcldy Pcldy Mcldy
Precip Type Tstms Tstms Tstms Tstms
Chance Precip (%) 30 50 40 70
Chance of Thunder (%) 20 30 30 30
Temp (24h trend) 55 (-7) 74 (+2) 57 77
RH % (24h trend) 100 (+2) 77 (-9) 100 70
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.04 0.05 0.24 0.19
Precip Duration 2 1 3 8
Precip Begin 6 PM 1 PM Continuing Continuing
Precip End 11 PM Continuing Continuing Continuing
Mixing Hgt(ft-agl/msl) 2670 3640
Transport Wnd (mph) SE 8 W 9
Vent Rate (kt-ft) 18690 29120
Max ADI Early 39 Fair 11 Poor 18 Gen Poor 18 Gen Poor
Max ADI Late 3 Very Poor 25 Fair 4 Very Poor 34 Fair
Max LVORI Early 9 9 9 9
Max LVORI Late 9 5 9 4
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY...Mostly cloudy. A chance of showers. Lows in the upper
50s. Highs around 70. West winds 5 to 10 mph.
.MONDAY...Mostly clear. Lows in the lower 50s. Highs in the upper
60s. West winds 10 to 15 mph.
.TUESDAY...Mostly clear. Lows in the lower 50s. Highs in the
lower 70s. West winds 5 to 10 mph.
.WEDNESDAY...Partly cloudy. A chance of showers. Lows in the mid
50s. Highs in the upper 70s. Southwest winds around 5 mph.
.THURSDAY...Mostly cloudy. A chance of showers and thunderstorms.
Lows around 60. Highs in the mid 70s. West winds around 5 mph.
$$
MDZ507-210800-
Northwest Harford-
Including the cities of Bynum, Hickory, Bel Air, and Fallston
232 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Pcldy Pcldy Mcldy Cloudy
Precip Type Tstms None Tstms Tstms
Chance Precip (%) 30 0 60 70
Chance of Thunder (%) 20 0 20 30
Temp (24h trend) 61 (-6) 81 (+1) 64 79
RH % (24h trend) 100 (+4) 69 (-10) 100 82
Wind 20ft/early(mph) N 5 N 5 Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.21 0.00 0.08 0.23
Precip Duration 3 3 9
Precip Begin 6 PM 1 AM Continuing
Precip End 11 PM Continuing Continuing
Mixing Hgt(ft-agl/msl) 3850 1970
Transport Wnd (mph) E 6 SE 8
Vent Rate (kt-ft) 19250 13790
Max ADI Early 21 Fair 27 Fair 22 Fair 19 Gen Poor
Max ADI Late 7 Poor 28 Fair 4 Very Poor 23 Fair
Max LVORI Early 9 8 7 9
Max LVORI Late 9 3 9 4
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY...Mostly cloudy. A chance of showers and thunderstorms.
Lows in the mid 60s. Highs in the lower 80s. West winds 5 to
10 mph.
.MONDAY...Mostly clear. Lows in the lower 60s. Highs in the upper
70s. West winds 5 to 10 mph.
.TUESDAY...Mostly clear. Lows in the upper 50s. Highs around 80.
Northwest winds 5 to 10 mph.
.WEDNESDAY...Partly cloudy. A chance of showers and
thunderstorms. Lows in the lower 60s. Highs in the lower 80s.
South winds 5 to 10 mph.
.THURSDAY...Mostly cloudy. A chance of showers. Lows in the upper
60s. Highs in the mid 80s. South winds 5 to 10 mph.
$$
MDZ506-210800-
Central and Southeast Howard-
Including the cities of Clarksville, Columbia, Simpsonville,
Historic Ellicott City, and Woodstock
232 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Pcldy Pcldy Pcldy Cloudy
Precip Type Tstms None Tstms Tstms
Chance Precip (%) 30 0 60 70
Chance of Thunder (%) 20 0 20 30
Temp (24h trend) 63 (-6) 81 (-2) 66 80
RH % (24h trend) 100 (+7) 71 (-1) 100 78
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.15 0.00 0.19 0.14
Precip Duration 3 3 9
Precip Begin 6 PM 12 AM Continuing
Precip End 11 PM Continuing Continuing
Mixing Hgt(ft-agl/msl) 3880 2840
Transport Wnd (mph) E 6 SE 7
Vent Rate (kt-ft) 19400 17040
Max ADI Early 21 Fair 27 Fair 21 Fair 22 Fair
Max ADI Late 6 Very Poor 31 Fair 4 Very Poor 29 Fair
Max LVORI Early 9 8 7 9
Max LVORI Late 9 3 9 4
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY...Mostly cloudy. A chance of showers and thunderstorms.
Lows in the mid 60s. Highs in the lower 80s. West winds 5 to
10 mph.
.MONDAY...Mostly clear. Lows in the lower 60s. Highs around 80.
West winds 5 to 10 mph.
.TUESDAY...Mostly clear. Lows in the lower 60s. Highs around 80.
Northwest winds 5 to 10 mph.
.WEDNESDAY...Partly cloudy. A chance of showers and
thunderstorms. Lows in the mid 60s. Highs in the mid 80s. South
winds 5 to 10 mph.
.THURSDAY...Mostly cloudy. A chance of showers. Lows in the upper
60s. Highs in the mid 80s. Southwest winds 5 to 10 mph.
$$
MDZ508-210800-
Southeast Harford-
Including the cities of Harford Furnace, Abingdon, Edgewood,
Magnolia, Aberdeen, Carsins, and Churchville
232 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Pcldy Pcldy Pcldy Cloudy
Precip Type Tstms None Tstms Tstms
Chance Precip (%) 30 0 60 70
Chance of Thunder (%) 20 0 20 30
Temp (24h trend) 62 (-8) 81 (-1) 65 80
RH % (24h trend) 100 (+6) 68 (-7) 100 79
Wind 20ft/early(mph) N 5 G20 N 5 Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.25 0.00 0.12 0.34
Precip Duration 3 3 9
Precip Begin 6 PM 12 AM Continuing
Precip End 11 PM Continuing Continuing
Mixing Hgt(ft-agl/msl) 3860 1950
Transport Wnd (mph) NE 6 SE 7
Vent Rate (kt-ft) 19300 11700
Max ADI Early 19 Gen Poor 27 Fair 21 Fair 22 Fair
Max ADI Late 8 Poor 32 Fair 4 Very Poor 24 Fair
Max LVORI Early 8 8 8 9
Max LVORI Late 9 3 9 4
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY...Mostly cloudy. A chance of showers and thunderstorms.
Lows in the upper 60s. Highs in the lower 80s. West winds 5 to
10 mph.
.MONDAY...Mostly clear. Lows in the lower 60s. Highs around 80.
West winds 5 to 10 mph.
.TUESDAY...Mostly clear. Lows in the lower 60s. Highs in the
lower 80s. Northwest winds 5 to 10 mph.
.WEDNESDAY...Mostly clear. A chance of showers and thunderstorms.
Lows in the mid 60s. Highs in the mid 80s. Southeast winds 5 to
10 mph.
.THURSDAY...Mostly cloudy. A chance of showers. Lows in the upper
60s. Highs in the mid 80s. South winds 5 to 10 mph.
$$
MDZ501-210800-
Extreme Western Allegany-
Including the cities of Frostburg, La Vale, Reynolds,
and Westernport
232 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Pcldy Pcldy Pcldy Mcldy
Precip Type Tstms None Tstms Tstms
Chance Precip (%) 20 0 50 70
Chance of Thunder (%) 20 0 20 30
Temp (24h trend) 58 (-7) 78 (+3) 62 81
RH % (24h trend) 100 (+1) 68 (-14) 100 66
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.03 0.00 0.16 0.10
Precip Duration 2 2 5
Precip Begin 6 PM 6 PM Continuing
Precip End 11 PM Continuing Continuing
Mixing Hgt(ft-agl/msl) 3470 3080
Transport Wnd (mph) SE 8 S 7
Vent Rate (kt-ft) 24290 18480
Max ADI Early 29 Fair 21 Fair 22 Fair 16 Gen Poor
Max ADI Late 4 Very Poor 32 Fair 3 Very Poor 25 Fair
Max LVORI Early 9 8 6 9
Max LVORI Late 8 4 7 4
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY...Mostly cloudy. A chance of showers. Lows in the lower
60s. Highs in the mid 70s. West winds 10 to 15 mph.
.MONDAY...Mostly clear. Lows in the mid 50s. Highs in the mid
70s. West winds 10 to 15 mph.
.TUESDAY...Mostly clear. Lows in the mid 50s. Highs in the upper
70s. West winds 5 to 10 mph.
.WEDNESDAY...Partly cloudy. Lows in the upper 50s. Highs around
80. Southwest winds around 5 mph.
.THURSDAY...Partly cloudy. A chance of showers. Lows in the lower
60s. Highs in the lower 80s. West winds around 5 mph.
$$
MDZ503-210800-
Northwest Montgomery-
Including the cities of Boyds and Germantown
232 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Pcldy Pcldy Mcldy Mcldy
Precip Type Tstms None Tstms Tstms
Chance Precip (%) 30 0 60 70
Chance of Thunder (%) 20 0 20 30
Temp (24h trend) 62 (-7) 80 (-2) 65 81
RH % (24h trend) 100 (+7) 72 (-4) 100 77
Wind 20ft/early(mph) N 5 Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.15 0.00 0.10 0.11
Precip Duration 3 3 9
Precip Begin 6 PM 10 PM Continuing
Precip End 11 PM Continuing Continuing
Mixing Hgt(ft-agl/msl) 4070 3240
Transport Wnd (mph) E 6 S 7
Vent Rate (kt-ft) 20350 19440
Max ADI Early 20 Gen Poor 26 Fair 23 Fair 25 Fair
Max ADI Late 6 Very Poor 31 Fair 4 Very Poor 30 Fair
Max LVORI Early 8 9 8 9
Max LVORI Late 9 4 9 4
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY...Mostly cloudy. A chance of showers and thunderstorms.
Lows in the mid 60s. Highs in the lower 80s. West winds 5 to
10 mph.
.MONDAY...Mostly clear. Lows in the lower 60s. Highs in the upper
70s. West winds 5 to 10 mph.
.TUESDAY...Mostly clear. Lows in the upper 50s. Highs around 80.
Northwest winds 5 to 10 mph.
.WEDNESDAY...Partly cloudy. A chance of showers and
thunderstorms. Lows in the lower 60s. Highs in the mid 80s. South
winds 5 to 10 mph.
.THURSDAY...Mostly cloudy. A chance of showers. Lows in the upper
60s. Highs in the mid 80s. Southwest winds around 5 mph.
$$
MDZ502-210800-
Central and Eastern Allegany-
Including the cities of Cumberland, Ellerslie, Brady, Rawlings,
and McCoole
232 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Pcldy Mclear Pcldy Mcldy
Precip Type Tstms None Tstms Tstms
Chance Precip (%) 20 0 50 70
Chance of Thunder (%) 20 0 10 30
Temp (24h trend) 59 (-6) 80 (+3) 63 82
RH % (24h trend) 100 (0) 65 (-20) 100 67
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.04 0.00 0.16 0.19
Precip Duration 2 2 8
Precip Begin 6 PM 11 PM Continuing
Precip End 11 PM Continuing Continuing
Mixing Hgt(ft-agl/msl) 4070 3310
Transport Wnd (mph) SE 6 SE 6
Vent Rate (kt-ft) 20350 16550
Max ADI Early 22 Fair 20 Gen Poor 16 Gen Poor 14 Gen Poor
Max ADI Late 3 Very Poor 32 Fair 3 Very Poor 26 Fair
Max LVORI Early 9 9 6 9
Max LVORI Late 9 3 9 4
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY...Mostly cloudy. A chance of showers. Lows in the lower
60s. Highs in the upper 70s. West winds 5 to 10 mph.
.MONDAY...Mostly clear. Lows in the upper 50s. Highs in the upper
70s. West winds 5 to 10 mph.
.TUESDAY...Mostly clear. Lows in the mid 50s. Highs in the upper
70s. West winds 5 to 10 mph.
.WEDNESDAY...Partly cloudy. A chance of showers. Lows in the
upper 50s. Highs in the lower 80s. South winds around 5 mph.
.THURSDAY...Mostly cloudy. A chance of showers. Lows in the lower
60s. Highs in the mid 80s. West winds around 5 mph.
$$
MDZ505-210800-
Northwest Howard-
Including the cities of Lisbon, Poplar Springs, Watersville,
Glenelg, Glenwood, West Friendship, and Dayton
232 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Pcldy Pcldy Pcldy Cloudy
Precip Type Tstms None Tstms Tstms
Chance Precip (%) 30 0 60 70
Chance of Thunder (%) 20 0 20 30
Temp (24h trend) 62 (-7) 79 (-2) 65 79
RH % (24h trend) 100 (+7) 73 (-4) 100 82
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.15 0.00 0.15 0.16
Precip Duration 3 3 9
Precip Begin 6 PM 12 AM Continuing
Precip End 11 PM Continuing Continuing
Mixing Hgt(ft-agl/msl) 3820 2760
Transport Wnd (mph) E 6 SE 8
Vent Rate (kt-ft) 19100 19320
Max ADI Early 21 Fair 25 Fair 22 Fair 25 Fair
Max ADI Late 5 Very Poor 30 Fair 4 Very Poor 29 Fair
Max LVORI Early 9 9 8 9
Max LVORI Late 9 3 9 4
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY...Mostly cloudy. A chance of showers and thunderstorms.
Lows in the mid 60s. Highs around 80. West winds 5 to 10 mph.
.MONDAY...Mostly clear. Lows around 60. Highs in the upper 70s.
West winds 5 to 10 mph.
.TUESDAY...Mostly clear. Lows in the upper 50s. Highs in the
upper 70s. Northwest winds around 5 mph.
.WEDNESDAY...Partly cloudy. A chance of showers and
thunderstorms. Lows in the lower 60s. Highs in the lower 80s.
South winds around 5 mph.
.THURSDAY...Mostly cloudy. A chance of showers. Lows in the upper
60s. Highs in the lower 80s. Southwest winds around 5 mph.
$$
MDZ504-210800-
Central and Southeast Montgomery-
Including the cities of Four Corners, Silver Spring, Glenmont,
Bethesda, Gaithersburg, Aspen Hill, and Rockville
232 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Pcldy Pcldy Mcldy Cloudy
Precip Type Tstms None Tstms Tstms
Chance Precip (%) 30 0 60 70
Chance of Thunder (%) 20 0 20 30
Temp (24h trend) 63 (-7) 81 (-3) 66 81
RH % (24h trend) 100 (+7) 69 (+1) 100 76
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.20 0.00 0.14 0.13
Precip Duration 3 3 9
Precip Begin 6 PM 10 PM Continuing
Precip End 11 PM Continuing Continuing
Mixing Hgt(ft-agl/msl) 4140 3410
Transport Wnd (mph) E 6 S 8
Vent Rate (kt-ft) 20700 23870
Max ADI Early 29 Fair 27 Fair 22 Fair 23 Fair
Max ADI Late 6 Very Poor 29 Fair 4 Very Poor 36 Fair
Max LVORI Early 8 8 7 9
Max LVORI Late 9 3 9 4
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY...Mostly cloudy. A chance of showers and thunderstorms.
Lows in the mid 60s. Highs in the lower 80s. West winds 5 to
10 mph.
.MONDAY...Mostly clear. Lows in the lower 60s. Highs around 80.
West winds 5 to 10 mph.
.TUESDAY...Mostly clear. Lows in the lower 60s. Highs in the
lower 80s. Northwest winds around 5 mph.
.WEDNESDAY...Partly cloudy. A chance of showers and
thunderstorms. Lows in the mid 60s. Highs in the mid 80s. South
winds 5 to 10 mph.
.THURSDAY...Mostly cloudy. A chance of showers. Lows in the upper
60s. Highs in the mid 80s. Southwest winds 5 to 10 mph.
$$
MDZ006-210800-
Northern Baltimore-
Including the cities of Randallstown, Long Green, Glyndon,
Reisterstown, Owings Mills, Cockeysville, and Timonium
232 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Pcldy Pcldy Mcldy Mcldy
Precip Type Tstms None Tstms Tstms
Chance Precip (%) 30 0 60 70
Chance of Thunder (%) 20 0 20 30
Temp (24h trend) 61 (-6) 80 (0) 64 79
RH % (24h trend) 100 (+7) 69 (-8) 100 79
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.17 0.00 0.10 0.18
Precip Duration 3 3 9
Precip Begin 6 PM 1 AM Continuing
Precip End 11 PM Continuing Continuing
Mixing Hgt(ft-agl/msl) 3780 2200
Transport Wnd (mph) E 6 SE 7
Vent Rate (kt-ft) 18900 13200
Max ADI Early 23 Fair 26 Fair 21 Fair 21 Fair
Max ADI Late 6 Very Poor 29 Fair 4 Very Poor 24 Fair
Max LVORI Early 9 8 7 9
Max LVORI Late 9 3 9 4
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY...Mostly cloudy. A chance of showers and thunderstorms.
Lows in the mid 60s. Highs in the lower 80s. West winds 5 to
10 mph.
.MONDAY...Mostly clear. Lows in the lower 60s. Highs in the upper
70s. West winds 5 to 10 mph.
.TUESDAY...Mostly clear. Lows in the upper 50s. Highs around 80.
Northwest winds 5 to 10 mph.
.WEDNESDAY...Partly cloudy. A chance of showers and
thunderstorms. Lows in the lower 60s. Highs in the lower 80s.
South winds 5 to 10 mph.
.THURSDAY...Mostly cloudy. A chance of showers. Lows in the upper
60s. Highs in the mid 80s. Southwest winds 5 to 10 mph.
$$
MDZ005-210800-
Carroll-
Including the cities of Eldersburg, Gamber, and Westminster
232 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Pcldy Pcldy Pcldy Mcldy
Precip Type Tstms None Tstms Tstms
Chance Precip (%) 20 0 60 70
Chance of Thunder (%) 20 0 20 30
Temp (24h trend) 60 (-8) 79 (+1) 64 78
RH % (24h trend) 100 (+6) 69 (-11) 100 80
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.11 0.00 0.10 0.25
Precip Duration 2 3 9
Precip Begin 6 PM 1 AM Continuing
Precip End 11 PM Continuing Continuing
Mixing Hgt(ft-agl/msl) 3960 2310
Transport Wnd (mph) E 6 SE 8
Vent Rate (kt-ft) 19800 16170
Max ADI Early 19 Gen Poor 27 Fair 22 Fair 22 Fair
Max ADI Late 5 Very Poor 30 Fair 4 Very Poor 24 Fair
Max LVORI Early 9 9 7 9
Max LVORI Late 9 3 9 4
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY...Mostly cloudy. A chance of showers and thunderstorms.
Lows in the mid 60s. Highs around 80. West winds 5 to 10 mph.
.MONDAY...Mostly clear. Lows in the upper 50s. Highs in the upper
70s. West winds 5 to 10 mph.
.TUESDAY...Mostly clear. Lows in the upper 50s. Highs in the
upper 70s. Northwest winds around 5 mph.
.WEDNESDAY...Partly cloudy. A chance of showers and
thunderstorms. Lows in the lower 60s. Highs in the lower 80s.
South winds around 5 mph.
.THURSDAY...Mostly cloudy. A chance of showers. Lows in the mid
60s. Highs in the lower 80s. Southwest winds around 5 mph.
$$
MDZ004-210800-
Frederick-
Including the cities of Frederick, Ballenger Creek, Buckeystown,
and Park Mills
232 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Pcldy Pcldy Pcldy Mcldy
Precip Type Tstms None Tstms Tstms
Chance Precip (%) 20 0 60 70
Chance of Thunder (%) 20 0 20 30
Temp (24h trend) 60 (-8) 80 (+2) 63 80
RH % (24h trend) 100 (+6) 71 (-9) 100 79
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.08 0.00 0.07 0.29
Precip Duration 2 3 9
Precip Begin 6 PM 12 AM Continuing
Precip End 11 PM Continuing Continuing
Mixing Hgt(ft-agl/msl) 3990 2760
Transport Wnd (mph) E 6 SE 7
Vent Rate (kt-ft) 19950 16560
Max ADI Early 25 Fair 27 Fair 22 Fair 21 Fair
Max ADI Late 5 Very Poor 31 Fair 3 Very Poor 21 Fair
Max LVORI Early 9 9 7 9
Max LVORI Late 9 3 9 4
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY...Mostly cloudy. A chance of showers and thunderstorms.
Lows in the mid 60s. Highs around 80. West winds 5 to 10 mph.
.MONDAY...Mostly clear. Lows around 60. Highs in the upper 70s.
West winds 5 to 10 mph.
.TUESDAY...Mostly clear. Lows in the upper 50s. Highs in the
upper 70s. Northwest winds 5 to 10 mph.
.WEDNESDAY...Mostly clear. A chance of showers and thunderstorms.
Lows in the lower 60s. Highs in the lower 80s. South winds 5 to
10 mph.
.THURSDAY...Mostly cloudy. A chance of showers. Lows in the mid
60s. Highs in the lower 80s. West winds 5 to 10 mph.
$$
MDZ003-210800-
Washington-
Including the cities of Hagerstown and Halfway
232 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Pcldy Mclear Pcldy Mcldy
Precip Type Tstms None Tstms Tstms
Chance Precip (%) 20 0 50 70
Chance of Thunder (%) 20 0 20 30
Temp (24h trend) 60 (-7) 81 (+2) 64 82
RH % (24h trend) 100 (+3) 64 (-18) 100 74
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.06 0.00 0.07 0.47
Precip Duration 2 2 8
Precip Begin 6 PM 1 AM Continuing
Precip End 11 PM Continuing Continuing
Mixing Hgt(ft-agl/msl) 4310 2660
Transport Wnd (mph) E 6 SE 6
Vent Rate (kt-ft) 21550 13300
Max ADI Early 32 Fair 25 Fair 19 Gen Poor 12 Poor
Max ADI Late 4 Very Poor 32 Fair 3 Very Poor 21 Fair
Max LVORI Early 9 9 6 9
Max LVORI Late 9 3 9 4
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY...Mostly cloudy. A chance of showers. Lows in the lower
60s. Highs in the lower 80s. West winds 5 to 10 mph.
.MONDAY...Mostly clear. Lows in the upper 50s. Highs in the upper
70s. West winds 5 to 10 mph.
.TUESDAY...Mostly clear. Lows in the upper 50s. Highs around 80.
Northwest winds 5 to 10 mph.
.WEDNESDAY...Partly cloudy. A chance of showers and
thunderstorms. Lows in the lower 60s. Highs in the mid 80s. South
winds 5 to 10 mph.
.THURSDAY...Mostly cloudy. A chance of showers. Lows in the mid
60s. Highs in the mid 80s. West winds 5 to 10 mph.
$$
VAZ053-210800-
Fairfax-
Including the cities of Burke, Fairfax Station, Reston,
Annandale, Chantilly, Langley, and McLean
232 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Pcldy Pcldy Mcldy Mcldy
Precip Type Tstms None Tstms Tstms
Chance Precip (%) 40 0 70 70
Chance of Thunder (%) 20 0 30 30
Temp (24h trend) 65 (-6) 82 (-5) 67 82
RH % (24h trend) 100 (+10) 68 (+6) 100 73
Wind 20ft/early(mph) N 5 Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.22 0.00 0.13 0.11
Precip Duration 2 3 9
Precip Begin 6 PM 10 PM Continuing
Precip End 11 PM Continuing Continuing
Mixing Hgt(ft-agl/msl) 4200 3660
Transport Wnd (mph) E 6 S 7
Vent Rate (kt-ft) 21000 21960
Max ADI Early 31 Fair 27 Fair 22 Fair 22 Fair
Max ADI Late 6 Very Poor 29 Fair 4 Very Poor 33 Fair
Max LVORI Early 7 8 6 9
Max LVORI Late 8 3 9 4
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY...Mostly cloudy. A chance of showers and thunderstorms.
Lows in the upper 60s. Highs in the mid 80s. Northwest winds 5 to
10 mph.
.MONDAY...Mostly clear. Lows in the mid 60s. Highs in the lower
80s. West winds 5 to 10 mph.
.TUESDAY...Mostly clear. Lows in the lower 60s. Highs in the
lower 80s. Northwest winds 5 to 10 mph.
.WEDNESDAY...Partly cloudy. A chance of showers and
thunderstorms. Lows in the mid 60s. Highs in the mid 80s. South
winds 5 to 10 mph.
.THURSDAY...Mostly cloudy. A chance of showers. Lows in the upper
60s. Highs in the mid 80s. Southwest winds 5 to 10 mph.
$$
VAZ527-210800-
Central and Southeast Prince William/Manassas/Manassas Park-
Including the cities of Dale City, Independent Hill, Aden,
Manassas, Lake Ridge, Woodbridge, and Montclair
232 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Pcldy Pcldy Mcldy Mcldy
Precip Type Tstms None Tstms Tstms
Chance Precip (%) 40 0 70 60
Chance of Thunder (%) 20 0 30 20
Temp (24h trend) 64 (-6) 83 (-5) 66 83
RH % (24h trend) 100 (+6) 68 (+8) 100 72
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.13 0.00 0.11 0.15
Precip Duration 2 3 9
Precip Begin 6 PM 10 PM Continuing
Precip End 11 PM Continuing Continuing
Mixing Hgt(ft-agl/msl) 4090 3430
Transport Wnd (mph) NE 5 S 7
Vent Rate (kt-ft) 16360 20580
Max ADI Early 29 Fair 29 Fair 20 Gen Poor 21 Fair
Max ADI Late 6 Very Poor 27 Fair 3 Very Poor 32 Fair
Max LVORI Early 7 8 7 9
Max LVORI Late 9 3 9 4
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY...Mostly cloudy. A chance of showers. Lows in the mid
60s. Highs in the mid 80s. Northwest winds around 5 mph.
.MONDAY...Mostly clear. Lows in the lower 60s. Highs in the lower
80s. Northwest winds 5 to 10 mph.
.TUESDAY...Mostly clear. Lows in the lower 60s. Highs in the
lower 80s. Northwest winds around 5 mph.
.WEDNESDAY...Partly cloudy. A chance of showers and
thunderstorms. Lows in the mid 60s. Highs in the upper 80s. South
winds 5 to 10 mph.
.THURSDAY...Mostly cloudy. A chance of showers. Lows in the upper
60s. Highs in the upper 80s. Southwest winds 5 to 10 mph.
$$
VAZ051-210800-
Culpeper-
Including the cities of Cardova, Catalpa, Culpeper, Reva,
Stevensburg, Winston, and Rapidan
232 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Pcldy Pcldy Mcldy Mcldy
Precip Type Tstms None Tstms Tstms
Chance Precip (%) 50 0 60 60
Chance of Thunder (%) 20 0 30 30
Temp (24h trend) 63 (-5) 81 (-6) 64 83
RH % (24h trend) 100 (+5) 74 (+13) 100 75
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.08 0.00 0.11 0.36
Precip Duration 2 4 9
Precip Begin 6 PM 6 PM Continuing
Precip End 11 PM Continuing 6 PM
Mixing Hgt(ft-agl/msl) 3830 3710
Transport Wnd (mph) E 6 SW 6
Vent Rate (kt-ft) 19150 18550
Max ADI Early 20 Gen Poor 28 Fair 17 Gen Poor 16 Gen Poor
Max ADI Late 5 Very Poor 26 Fair 3 Very Poor 25 Fair
Max LVORI Early 9 9 10 9
Max LVORI Late 9 4 10 5
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY...Mostly cloudy. Lows in the mid 60s. Highs in the mid
80s. Northwest winds around 5 mph.
.MONDAY...Mostly clear. Lows in the upper 50s. Highs in the lower
80s. West winds around 5 mph.
.TUESDAY...Mostly clear. Lows in the upper 50s. Highs in the
lower 80s. North winds around 5 mph.
.WEDNESDAY...Partly cloudy. A chance of showers and
thunderstorms. Lows in the lower 60s. Highs in the mid 80s. South
winds around 5 mph.
.THURSDAY...Mostly cloudy. A chance of showers. Lows in the mid
60s. Highs in the mid 80s. Southwest winds around 5 mph.
$$
VAZ050-210800-
Orange-
Including the cities of Burr Hill, Everona, Lahore, Madison Run,
Nasons, Orange, and Unionville
232 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Pcldy Pcldy Mcldy Mcldy
Precip Type Tstms None Tstms Tstms
Chance Precip (%) 50 0 70 50
Chance of Thunder (%) 20 0 30 20
Temp (24h trend) 63 (-6) 81 (-8) 64 83
RH % (24h trend) 100 (+3) 75 (+19) 100 73
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.16 0.00 0.20 0.20
Precip Duration 2 5 3
Precip Begin 6 PM 6 PM Continuing
Precip End 11 PM Continuing Continuing
Mixing Hgt(ft-agl/msl) 3700 4120
Transport Wnd (mph) NE 6 SW 7
Vent Rate (kt-ft) 18500 24720
Max ADI Early 30 Fair 23 Fair 20 Gen Poor 17 Gen Poor
Max ADI Late 6 Very Poor 27 Fair 3 Very Poor 33 Fair
Max LVORI Early 9 9 10 9
Max LVORI Late 9 4 10 4
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY...Mostly cloudy. Lows in the mid 60s. Highs in the mid
80s. West winds around 5 mph.
.MONDAY...Mostly clear. Lows in the upper 50s. Highs in the lower
80s. West winds around 5 mph.
.TUESDAY...Mostly clear. Lows in the upper 50s. Highs in the
lower 80s. Northeast winds around 5 mph.
.WEDNESDAY...Partly cloudy. A chance of showers and
thunderstorms. Lows in the lower 60s. Highs in the mid 80s. South
winds 5 to 10 mph.
.THURSDAY...Mostly cloudy. A chance of showers. Lows in the mid
60s. Highs in the upper 80s. Southwest winds around 5 mph.
$$
VAZ036-210800-
Nelson-
Including the city of Greenfield
232 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Pcldy Pcldy Mcldy Mcldy
Precip Type Tstms Tstms Tstms Tstms
Chance Precip (%) 50 20 80 50
Chance of Thunder (%) 20 20 40 30
Temp (24h trend) 65 (-4) 82 (-7) 65 85
RH % (24h trend) 100 (+9) 72 (+21) 100 64
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.04 0.04 0.24 0.06
Precip Duration 2 1 6 3
Precip Begin 6 PM 1 PM Continuing Continuing
Precip End 2 AM Continuing Continuing Continuing
Mixing Hgt(ft-agl/msl) 3280 4350
Transport Wnd (mph) E 7 SW 8
Vent Rate (kt-ft) 19680 30450
Max ADI Early 39 Fair 16 Gen Poor 20 Gen Poor 15 Gen Poor
Max ADI Late 4 Very Poor 24 Fair 2 Very Poor 34 Fair
Max LVORI Early 7 9 9 10
Max LVORI Late 9 4 10 3
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY...Partly cloudy. Lows in the mid 60s. Highs in the mid
80s. West winds 5 to 10 mph.
.MONDAY...Clear. Lows in the upper 50s. Highs in the lower 80s.
West winds 5 to 10 mph.
.TUESDAY...Mostly clear. Lows in the upper 50s. Highs in the
lower 80s. East winds around 5 mph.
.WEDNESDAY...Partly cloudy. A chance of showers and
thunderstorms. Lows in the lower 60s. Highs in the mid 80s. South
winds 5 to 10 mph.
.THURSDAY...Partly cloudy. A chance of showers and thunderstorms.
Lows in the upper 60s. Highs in the upper 80s. Southwest winds
5 to 10 mph.
$$
VAZ037-210800-
Albemarle-
Including the cities of Charlottesville and Overton
232 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Pcldy Pcldy Mcldy Mcldy
Precip Type Tstms None Tstms Tstms
Chance Precip (%) 50 0 80 60
Chance of Thunder (%) 20 0 30 30
Temp (24h trend) 66 (-4) 82 (-7) 66 85
RH % (24h trend) 100 (+10) 76 (+22) 100 71
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.05 0.00 0.20 0.06
Precip Duration 2 5 5
Precip Begin 6 PM 6 PM Continuing
Precip End 12 AM Continuing Continuing
Mixing Hgt(ft-agl/msl) 3530 3930
Transport Wnd (mph) E 6 SW 7
Vent Rate (kt-ft) 17650 23580
Max ADI Early 30 Fair 20 Gen Poor 18 Gen Poor 15 Gen Poor
Max ADI Late 5 Very Poor 24 Fair 3 Very Poor 27 Fair
Max LVORI Early 8 8 9 9
Max LVORI Late 9 4 9 4
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY...Partly cloudy. Lows in the mid 60s. Highs in the mid
80s. West winds 5 to 10 mph.
.MONDAY...Clear. Lows around 60. Highs in the mid 80s. West winds
5 to 10 mph.
.TUESDAY...Mostly clear. Lows around 60. Highs in the mid 80s.
Northeast winds around 5 mph.
.WEDNESDAY...Partly cloudy. A chance of showers and
thunderstorms. Lows in the mid 60s. Highs in the upper 80s. South
winds 5 to 10 mph.
.THURSDAY...Partly cloudy. A chance of showers and thunderstorms.
Lows in the upper 60s. Highs in the upper 80s. Southwest winds
5 to 10 mph.
$$
VAZ038-210800-
Greene-
Including the city of Shady Grove
232 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Pcldy Pcldy Mcldy Mcldy
Precip Type Tstms None Tstms Tstms
Chance Precip (%) 50 0 70 70
Chance of Thunder (%) 20 0 30 30
Temp (24h trend) 64 (-6) 81 (-5) 65 84
RH % (24h trend) 100 (+11) 75 (+16) 100 73
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.05 0.00 0.10 0.07
Precip Duration 2 4 5
Precip Begin 6 PM 6 PM Continuing
Precip End 11 PM Continuing 6 PM
Mixing Hgt(ft-agl/msl) 3340 3440
Transport Wnd (mph) E 6 SW 6
Vent Rate (kt-ft) 16700 17200
Max ADI Early 28 Fair 19 Gen Poor 12 Poor 15 Gen Poor
Max ADI Late 4 Very Poor 22 Fair 3 Very Poor 24 Fair
Max LVORI Early 8 9 8 9
Max LVORI Late 9 4 9 4
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY...Partly cloudy. Lows in the mid 60s. Highs in the lower
80s. West winds 5 to 10 mph.
.MONDAY...Clear. Lows in the upper 50s. Highs in the lower 80s.
West winds 5 to 10 mph.
.TUESDAY...Mostly clear. Lows in the upper 50s. Highs in the
lower 80s. East winds around 5 mph.
.WEDNESDAY...Partly cloudy. A chance of showers and
thunderstorms. Lows in the lower 60s. Highs in the mid 80s. South
winds 5 to 10 mph.
.THURSDAY...Partly cloudy. A chance of showers. Lows in the upper
60s. Highs in the mid 80s. South winds around 5 mph.
$$
VAZ039-210800-
Madison-
Including the cities of Fordsville, Five Forks, Madison Mills,
and Twymans Mill
232 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Pcldy Pcldy Mcldy Mcldy
Precip Type Tstms None Tstms Tstms
Chance Precip (%) 50 0 60 70
Chance of Thunder (%) 20 0 30 30
Temp (24h trend) 63 (-6) 81 (-5) 64 83
RH % (24h trend) 100 (+9) 74 (+14) 100 72
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.12 0.00 0.11 0.26
Precip Duration 2 4 5
Precip Begin 6 PM 6 PM Continuing
Precip End 11 PM Continuing 6 PM
Mixing Hgt(ft-agl/msl) 3410 3630
Transport Wnd (mph) NE 6 SW 6
Vent Rate (kt-ft) 17050 18150
Max ADI Early 25 Fair 23 Fair 14 Gen Poor 17 Gen Poor
Max ADI Late 6 Very Poor 25 Fair 3 Very Poor 25 Fair
Max LVORI Early 9 9 9 9
Max LVORI Late 9 4 9 4
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY...Partly cloudy. Lows in the mid 60s. Highs in the lower
80s. West winds around 5 mph.
.MONDAY...Clear. Lows in the upper 50s. Highs in the lower 80s.
West winds 5 to 10 mph.
.TUESDAY...Mostly clear. Lows in the upper 50s. Highs in the
lower 80s. East winds around 5 mph.
.WEDNESDAY...Partly cloudy. A chance of showers and
thunderstorms. Lows in the lower 60s. Highs in the mid 80s. South
winds 5 to 10 mph.
.THURSDAY...Partly cloudy. A chance of showers. Lows in the mid
60s. Highs in the mid 80s. South winds around 5 mph.
$$
MDZ014-210800-
Anne Arundel-
Including the cities of Glen Burnie, Annapolis, Ridgeway, Severn,
South Gate, Severna Park, and Arnold
232 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Pcldy Mcldy Cloudy
Precip Type Tstms None Tstms Tstms
Chance Precip (%) 40 0 70 70
Chance of Thunder (%) 20 0 30 30
Temp (24h trend) 65 (-7) 81 (-5) 67 81
RH % (24h trend) 100 (+9) 68 (-1) 100 75
Wind 20ft/early(mph) N 5 G20 N 6 Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var NE 5 Lgt/Var Lgt/Var
Precip Amount 0.33 0.00 0.26 0.31
Precip Duration 2 3 8
Precip Begin 6 PM 10 PM Continuing
Precip End 11 PM Continuing Continuing
Mixing Hgt(ft-agl/msl) 3590 2440
Transport Wnd (mph) NE 6 SE 7
Vent Rate (kt-ft) 17950 14640
Max ADI Early 19 Gen Poor 28 Fair 18 Gen Poor 21 Fair
Max ADI Late 8 Poor 28 Fair 7 Poor 26 Fair
Max LVORI Early 7 6 6 8
Max LVORI Late 7 3 9 4
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY...Mostly cloudy. A chance of showers and thunderstorms.
Lows in the upper 60s. Highs in the mid 80s. West winds 5 to
10 mph.
.MONDAY...Mostly clear. Lows in the mid 60s. Highs in the lower
80s. West winds 5 to 10 mph.
.TUESDAY...Mostly clear. Lows in the mid 60s. Highs in the lower
80s. Northwest winds 5 to 10 mph.
.WEDNESDAY...Partly cloudy. A chance of showers and
thunderstorms. Lows in the upper 60s. Highs in the mid 80s.
Southeast winds 10 to 15 mph.
.THURSDAY...Mostly cloudy. A chance of showers. Lows around 70.
Highs in the mid 80s. South winds 10 to 15 mph.
$$
MDZ017-210800-
St. Marys-
Including the cities of Dameron, Lexington Park, Piney Point,
Ridge, California, Callaway, and Sotterley
232 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Pcldy Mcldy Mcldy
Precip Type Tstms None Tstms Tstms
Chance Precip (%) 70 0 80 70
Chance of Thunder (%) 20 0 40 30
Temp (24h trend) 66 (-7) 82 (-6) 67 82
RH % (24h trend) 100 (+4) 74 (+9) 100 80
Wind 20ft/early(mph) Lgt/Var N 5 Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.34 0.00 0.44 0.34
Precip Duration 3 6 10
Precip Begin 6 PM 6 PM Continuing
Precip End 2 AM Continuing Continuing
Mixing Hgt(ft-agl/msl) 3180 3180
Transport Wnd (mph) NE 6 SW 8
Vent Rate (kt-ft) 15900 22260
Max ADI Early 18 Gen Poor 26 Fair 17 Gen Poor 20 Gen Poor
Max ADI Late 8 Poor 23 Fair 5 Very Poor 31 Fair
Max LVORI Early 9 8 9 9
Max LVORI Late 9 4 9 4
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY...Mostly cloudy. A chance of showers. Lows in the upper
60s. Highs in the mid 80s. West winds around 5 mph.
.MONDAY...Mostly clear. Lows in the mid 60s. Highs in the lower
80s. Northwest winds 10 to 15 mph.
.TUESDAY...Mostly clear. Lows in the mid 60s. Highs in the lower
80s. Northwest winds 5 to 10 mph.
.WEDNESDAY...Partly cloudy. A chance of showers. Lows in the
upper 60s. Highs in the mid 80s. Southeast winds 10 to 15 mph.
.THURSDAY...Mostly cloudy. A chance of showers. Lows in the lower
70s. Highs in the mid 80s. Southwest winds 10 to 15 mph.
$$
MDZ016-210800-
Charles-
Including the cities of St. Charles and Waldorf
232 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Pcldy Mcldy Mcldy
Precip Type Tstms None Tstms Tstms
Chance Precip (%) 50 0 70 70
Chance of Thunder (%) 20 0 30 20
Temp (24h trend) 65 (-7) 82 (-6) 66 82
RH % (24h trend) 100 (+6) 70 (+9) 100 75
Wind 20ft/early(mph) N 5 N 5 Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.25 0.00 0.26 0.28
Precip Duration 2 4 9
Precip Begin 6 PM 6 PM Continuing
Precip End 11 PM Continuing Continuing
Mixing Hgt(ft-agl/msl) 3750 3430
Transport Wnd (mph) NE 5 S 8
Vent Rate (kt-ft) 15000 24010
Max ADI Early 22 Fair 26 Fair 19 Gen Poor 18 Gen Poor
Max ADI Late 8 Poor 25 Fair 3 Very Poor 34 Fair
Max LVORI Early 9 8 9 9
Max LVORI Late 9 3 9 4
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY...Mostly cloudy. A chance of showers. Lows in the upper
60s. Highs in the mid 80s. West winds around 5 mph.
.MONDAY...Mostly clear. Lows in the mid 60s. Highs in the lower
80s. Northwest winds 5 to 10 mph.
.TUESDAY...Mostly clear. Lows in the lower 60s. Highs in the
lower 80s. Northwest winds around 5 mph.
.WEDNESDAY...Partly cloudy. A chance of showers and
thunderstorms. Lows in the mid 60s. Highs in the mid 80s. South
winds 5 to 10 mph.
.THURSDAY...Mostly cloudy. A chance of showers. Lows in the upper
60s. Highs in the mid 80s. Southwest winds 5 to 10 mph.
$$
MDZ018-210800-
Calvert-
Including the cities of Cove Point, Drum Point, Chesapeake Beach,
Mount Harmony, Broomes Island, Long Beach, and Dunkirk
232 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Pcldy Mcldy Mcldy
Precip Type Tstms None Tstms Tstms
Chance Precip (%) 60 0 80 80
Chance of Thunder (%) 20 0 30 30
Temp (24h trend) 66 (-7) 81 (-7) 67 82
RH % (24h trend) 100 (+7) 70 (+5) 100 77
Wind 20ft/early(mph) N 5 N 6 Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.46 0.00 0.33 0.36
Precip Duration 3 5 11
Precip Begin 6 PM 6 PM Continuing
Precip End 2 AM Continuing Continuing
Mixing Hgt(ft-agl/msl) 3330 3050
Transport Wnd (mph) NE 6 S 7
Vent Rate (kt-ft) 16650 18300
Max ADI Early 16 Gen Poor 28 Fair 15 Gen Poor 19 Gen Poor
Max ADI Late 8 Poor 25 Fair 4 Very Poor 28 Fair
Max LVORI Early 9 7 7 9
Max LVORI Late 9 3 9 4
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY...Mostly cloudy. A chance of showers and thunderstorms.
Lows in the upper 60s. Highs in the mid 80s. West winds around
5 mph.
.MONDAY...Mostly clear. Lows in the mid 60s. Highs in the lower
80s. Northwest winds 5 to 10 mph.
.TUESDAY...Mostly clear. Lows in the mid 60s. Highs in the lower
80s. Northwest winds around 5 mph.
.WEDNESDAY...Partly cloudy. A chance of showers. Lows in the
upper 60s. Highs in the mid 80s. Southeast winds 5 to 10 mph.
.THURSDAY...Mostly cloudy. A chance of showers. Lows in the lower
70s. Highs in the mid 80s. South winds 5 to 10 mph.
$$
MDZ011-210800-
Southern Baltimore-
Including the cities of Baltimore, Fells Point, and Park Heights
232 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Pcldy Pcldy Mcldy Cloudy
Precip Type Tstms None Tstms Tstms
Chance Precip (%) 30 0 60 70
Chance of Thunder (%) 20 0 20 30
Temp (24h trend) 63 (-8) 81 (-2) 66 81
RH % (24h trend) 100 (+11) 67 (-5) 100 75
Wind 20ft/early(mph) N 5 N 5 Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.20 0.00 0.19 0.20
Precip Duration 3 3 9
Precip Begin 6 PM 11 PM Continuing
Precip End 11 PM Continuing Continuing
Mixing Hgt(ft-agl/msl) 3970 2410
Transport Wnd (mph) E 6 SE 7
Vent Rate (kt-ft) 19850 14460
Max ADI Early 21 Fair 26 Fair 21 Fair 21 Fair
Max ADI Late 8 Poor 29 Fair 4 Very Poor 24 Fair
Max LVORI Early 7 8 6 9
Max LVORI Late 7 3 9 4
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY...Mostly cloudy. A chance of showers and thunderstorms.
Lows in the upper 60s. Highs in the lower 80s. West winds 5 to
10 mph.
.MONDAY...Mostly clear. Lows in the mid 60s. Highs in the lower
80s. West winds 5 to 10 mph.
.TUESDAY...Mostly clear. Lows in the lower 60s. Highs in the
lower 80s. Northwest winds 5 to 10 mph.
.WEDNESDAY...Partly cloudy. A chance of showers and
thunderstorms. Lows in the mid 60s. Highs in the mid 80s. South
winds 5 to 10 mph.
.THURSDAY...Mostly cloudy. A chance of showers. Lows around 70.
Highs in the mid 80s. Southwest winds 5 to 10 mph.
$$
MDZ013-210800-
Prince Georges-
Including the cities of Bowie, Suitland-Silver Hill, Clinton,
College Park, Tantallon, Greenbelt, and Montpelier
232 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Pcldy Pcldy Mcldy Cloudy
Precip Type Tstms None Tstms Tstms
Chance Precip (%) 40 0 70 70
Chance of Thunder (%) 20 0 30 30
Temp (24h trend) 65 (-6) 82 (-5) 67 82
RH % (24h trend) 100 (+9) 68 (+6) 100 74
Wind 20ft/early(mph) N 5 N 5 Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.32 0.00 0.24 0.22
Precip Duration 2 3 9
Precip Begin 6 PM 12 AM Continuing
Precip End 11 PM Continuing Continuing
Mixing Hgt(ft-agl/msl) 3910 3180
Transport Wnd (mph) NE 6 SE 9
Vent Rate (kt-ft) 19550 25440
Max ADI Early 22 Fair 28 Fair 17 Gen Poor 19 Gen Poor
Max ADI Late 7 Poor 29 Fair 5 Very Poor 31 Fair
Max LVORI Early 7 7 6 9
Max LVORI Late 8 3 9 4
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY...Mostly cloudy. A chance of showers and thunderstorms.
Lows in the upper 60s. Highs in the mid 80s. West winds 5 to
10 mph.
.MONDAY...Mostly clear. Lows in the mid 60s. Highs in the lower
80s. West winds 5 to 10 mph.
.TUESDAY...Mostly clear. Lows in the lower 60s. Highs in the
lower 80s. Northwest winds 5 to 10 mph.
.WEDNESDAY...Partly cloudy. A chance of showers and
thunderstorms. Lows in the mid 60s. Highs in the mid 80s. South
winds 5 to 10 mph.
.THURSDAY...Mostly cloudy. A chance of showers. Lows in the upper
60s. Highs in the mid 80s. Southwest winds 5 to 10 mph.
$$
VAZ040-210800-
Rappahannock-
Including the cities of Castleton, Five Forks, Flint Hill,
Hackleys Crossroads, Rock Mills, and Washington
232 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Pcldy Pcldy Mcldy Mcldy
Precip Type Tstms None Tstms Tstms
Chance Precip (%) 40 0 60 70
Chance of Thunder (%) 20 0 20 30
Temp (24h trend) 62 (-6) 81 (-3) 64 82
RH % (24h trend) 100 (+9) 76 (+10) 100 77
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.08 0.00 0.08 0.18
Precip Duration 2 4 9
Precip Begin 6 PM 6 PM Continuing
Precip End 11 PM Continuing 6 PM
Mixing Hgt(ft-agl/msl) 3730 3130
Transport Wnd (mph) NE 6 S 6
Vent Rate (kt-ft) 18650 15650
Max ADI Early 18 Gen Poor 25 Fair 15 Gen Poor 14 Gen Poor
Max ADI Late 5 Very Poor 26 Fair 3 Very Poor 22 Fair
Max LVORI Early 9 9 9 9
Max LVORI Late 9 4 9 4
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY...Partly cloudy. Lows in the lower 60s. Highs in the
lower 80s. West winds around 5 mph.
.MONDAY...Clear. Lows in the upper 50s. Highs in the lower 80s.
West winds around 5 mph.
.TUESDAY...Mostly clear. Lows in the upper 50s. Highs in the
lower 80s. Northwest winds around 5 mph.
.WEDNESDAY...Partly cloudy. A chance of showers and
thunderstorms. Lows in the lower 60s. Highs in the mid 80s. South
winds around 5 mph.
.THURSDAY...Mostly cloudy. A chance of showers. Lows in the mid
60s. Highs in the mid 80s. Southwest winds around 5 mph.
$$
DCZ001-210800-
District of Columbia-
Including the cities of Adams Morgan and Washington
232 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Pcldy Pcldy Mcldy Cloudy
Precip Type Tstms None Tstms Tstms
Chance Precip (%) 40 0 70 70
Chance of Thunder (%) 20 0 30 30
Temp (24h trend) 66 (-6) 83 (-5) 68 83
RH % (24h trend) 100 (+14) 67 (+8) 100 72
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.28 0.00 0.20 0.17
Precip Duration 2 3 9
Precip Begin 6 PM 12 AM Continuing
Precip End 11 PM Continuing Continuing
Mixing Hgt(ft-agl/msl) 4170 3490
Transport Wnd (mph) NE 6 S 8
Vent Rate (kt-ft) 20850 24430
Max ADI Early 25 Fair 29 Fair 22 Fair 21 Fair
Max ADI Late 6 Very Poor 31 Fair 4 Very Poor 31 Fair
Max LVORI Early 6 8 6 9
Max LVORI Late 8 3 9 4
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY...Mostly cloudy. A chance of showers and thunderstorms.
Lows in the upper 60s. Highs in the mid 80s. West winds 5 to
10 mph.
.MONDAY...Mostly clear. Lows in the mid 60s. Highs in the lower
80s. West winds 5 to 10 mph.
.TUESDAY...Mostly clear. Lows in the mid 60s. Highs in the lower
80s. Northwest winds 5 to 10 mph.
.WEDNESDAY...Partly cloudy. A chance of showers and
thunderstorms. Lows in the mid 60s. Highs in the upper 80s. South
winds 5 to 10 mph.
.THURSDAY...Mostly cloudy. A chance of showers. Lows around 70.
Highs in the upper 80s. Southwest winds 5 to 10 mph.
$$
VAZ504-210800-
Eastern Highland-
Including the cities of Clover Creek, Liberty, McDowell,
Monterey, Mustoe, Possum Trot, and Sirons Mill
232 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Pcldy Pcldy Mcldy Mcldy
Precip Type Tstms Tstms Tstms Tstms
Chance Precip (%) 30 50 70 60
Chance of Thunder (%) 20 40 40 30
Temp (24h trend) 60 (-3) 79 (0) 60 82
RH % (24h trend) 100 (+3) 72 (+3) 100 60
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.01 0.08 0.13 0.05
Precip Duration 2 1 5 5
Precip Begin 6 PM 12 PM Continuing Continuing
Precip End 11 PM Continuing Continuing 6 PM
Mixing Hgt(ft-agl/msl) 2370 4580
Transport Wnd (mph) SE 7 W 8
Vent Rate (kt-ft) 14220 32060
Max ADI Early 54 Gen Good 13 Gen Poor 16 Gen Poor 19 Gen Poor
Max ADI Late 3 Very Poor 19 Gen Poor 3 Very Poor 35 Fair
Max LVORI Early 9 9 9 9
Max LVORI Late 9 4 9 3
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY...Mostly cloudy. Lows in the upper 50s. Highs in the mid
70s. West winds 5 to 10 mph.
.MONDAY...Mostly clear. Lows in the lower 50s. Highs in the mid
70s. West winds 5 to 10 mph.
.TUESDAY...Mostly clear. Lows in the lower 50s. Highs in the
upper 70s. West winds 5 to 10 mph.
.WEDNESDAY...Partly cloudy. A chance of showers and
thunderstorms. Lows in the upper 50s. Highs in the lower 80s.
Southwest winds 5 to 10 mph.
.THURSDAY...Partly cloudy. A chance of showers and thunderstorms.
Lows in the lower 60s. Highs in the lower 80s. West winds 5 to
10 mph.
$$
VAZ027-210800-
Shenandoah-
Including the cities of Clary, Strasburg, Alonzaville, Woodstock,
Hawkinstown, Mount Clifton, and Mount Jackson
232 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Pcldy Pcldy Mcldy Mcldy
Precip Type Tstms None Tstms Tstms
Chance Precip (%) 30 0 50 70
Chance of Thunder (%) 20 0 20 30
Temp (24h trend) 60 (-6) 80 (-1) 62 83
RH % (24h trend) 100 (+3) 66 (-4) 100 67
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.06 0.00 0.04 0.07
Precip Duration 2 3 5
Precip Begin 6 PM 6 PM Continuing
Precip End 11 PM Continuing 6 PM
Mixing Hgt(ft-agl/msl) 3640 3290
Transport Wnd (mph) SE 6 W 6
Vent Rate (kt-ft) 18200 16450
Max ADI Early 24 Fair 19 Gen Poor 17 Gen Poor 12 Poor
Max ADI Late 4 Very Poor 25 Fair 2 Very Poor 21 Fair
Max LVORI Early 8 9 7 9
Max LVORI Late 9 3 9 4
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY...Mostly cloudy. Lows in the lower 60s. Highs around 80.
West winds 5 to 10 mph.
.MONDAY...Clear. Lows in the mid 50s. Highs in the upper 70s.
West winds 5 to 10 mph.
.TUESDAY...Mostly clear. Lows in the mid 50s. Highs around 80.
Northwest winds 5 to 10 mph.
.WEDNESDAY...Partly cloudy. A chance of showers and
thunderstorms. Lows in the upper 50s. Highs in the mid 80s.
Southwest winds around 5 mph.
.THURSDAY...Partly cloudy. A chance of showers. Lows in the mid
60s. Highs in the mid 80s. Southwest winds around 5 mph.
$$
VAZ505-210800-
Western Loudoun-
Including the city of Lucketts
232 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Pcldy Pcldy Mcldy Mcldy
Precip Type Tstms None Tstms Tstms
Chance Precip (%) 30 0 60 60
Chance of Thunder (%) 20 0 20 30
Temp (24h trend) 62 (-6) 80 (-2) 65 81
RH % (24h trend) 100 (+7) 70 (-5) 100 74
Wind 20ft/early(mph) N 5 Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.14 0.00 0.06 0.17
Precip Duration 2 3 9
Precip Begin 6 PM 10 PM Continuing
Precip End 11 PM Continuing Continuing
Mixing Hgt(ft-agl/msl) 4030 2980
Transport Wnd (mph) E 6 SW 5
Vent Rate (kt-ft) 20150 11920
Max ADI Early 24 Fair 26 Fair 22 Fair 22 Fair
Max ADI Late 6 Very Poor 31 Fair 3 Very Poor 22 Fair
Max LVORI Early 9 8 7 9
Max LVORI Late 9 3 9 4
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY...Mostly cloudy. A chance of showers. Lows in the mid
60s. Highs in the lower 80s. West winds 5 to 10 mph.
.MONDAY...Mostly clear. Lows in the lower 60s. Highs around 80.
West winds 5 to 10 mph.
.TUESDAY...Mostly clear. Lows in the upper 50s. Highs in the
lower 80s. Northwest winds 5 to 10 mph.
.WEDNESDAY...Partly cloudy. A chance of showers and
thunderstorms. Lows in the lower 60s. Highs in the mid 80s. South
winds 5 to 10 mph.
.THURSDAY...Mostly cloudy. A chance of showers. Lows in the upper
60s. Highs in the mid 80s. West winds 5 to 10 mph.
$$
VAZ028-210800-
Frederick-
Including the cities of Albin, Cedar Grove, Gainesboro,
and Winchester
232 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Pcldy Pcldy Pcldy Mcldy
Precip Type Tstms None Tstms Tstms
Chance Precip (%) 30 0 60 70
Chance of Thunder (%) 20 0 20 30
Temp (24h trend) 60 (-6) 80 (0) 63 82
RH % (24h trend) 100 (+4) 67 (-9) 100 70
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.05 0.00 0.05 0.10
Precip Duration 2 3 5
Precip Begin 6 PM 6 PM Continuing
Precip End 11 PM Continuing Continuing
Mixing Hgt(ft-agl/msl) 4160 2950
Transport Wnd (mph) SE 6 E 5
Vent Rate (kt-ft) 20800 11800
Max ADI Early 32 Fair 23 Fair 25 Fair 13 Gen Poor
Max ADI Late 4 Very Poor 29 Fair 3 Very Poor 19 Gen Poor
Max LVORI Early 8 9 7 10
Max LVORI Late 9 3 9 4
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY...Mostly cloudy. Lows in the lower 60s. Highs around 80.
West winds 5 to 10 mph.
.MONDAY...Mostly clear. Lows in the upper 50s. Highs in the upper
70s. West winds 5 to 10 mph.
.TUESDAY...Mostly clear. Lows in the mid 50s. Highs around 80.
Northwest winds 5 to 10 mph.
.WEDNESDAY...Partly cloudy. A chance of showers and
thunderstorms. Lows around 60. Highs in the mid 80s. South winds
around 5 mph.
.THURSDAY...Partly cloudy. A chance of showers. Lows in the mid
60s. Highs in the mid 80s. West winds around 5 mph.
$$
VAZ025-210800-
Augusta-
Including the cities of Christian, Churchville, Staunton,
Waynesboro, Spottswood, and Stuarts Draft
232 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Pcldy Pcldy Mcldy Mcldy
Precip Type Tstms Tstms Tstms Tstms
Chance Precip (%) 30 30 70 60
Chance of Thunder (%) 20 30 40 30
Temp (24h trend) 61 (-5) 80 (-4) 61 83
RH % (24h trend) 100 (+8) 72 (+13) 100 65
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.03 0.05 0.14 0.06
Precip Duration 2 1 5 5
Precip Begin 6 PM 1 PM Continuing Continuing
Precip End 11 PM Continuing Continuing Continuing
Mixing Hgt(ft-agl/msl) 2820 4000
Transport Wnd (mph) SE 6 W 7
Vent Rate (kt-ft) 14100 24000
Max ADI Early 52 Gen Good 12 Poor 14 Gen Poor 19 Gen Poor
Max ADI Late 3 Very Poor 19 Gen Poor 2 Very Poor 30 Fair
Max LVORI Early 6 9 7 9
Max LVORI Late 9 4 9 3
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY...Partly cloudy. Lows in the lower 60s. Highs around 80.
West winds 10 to 15 mph.
.MONDAY...Clear. Lows in the mid 50s. Highs around 80. West winds
10 to 15 mph.
.TUESDAY...Mostly clear. Lows in the mid 50s. Highs in the lower
80s. South winds 5 to 10 mph.
.WEDNESDAY...Partly cloudy. A chance of showers and
thunderstorms. Lows around 60. Highs in the mid 80s. Southwest
winds 5 to 10 mph.
.THURSDAY...Partly cloudy. A chance of showers and thunderstorms.
Lows in the mid 60s. Highs in the mid 80s. Southwest winds 5 to
10 mph.
$$
VAZ502-210800-
Southern Fauquier-
Including the city of Turnbull
232 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Pcldy Pcldy Mcldy Mcldy
Precip Type Tstms None Tstms Tstms
Chance Precip (%) 50 0 60 60
Chance of Thunder (%) 20 0 30 30
Temp (24h trend) 63 (-6) 82 (-6) 65 83
RH % (24h trend) 100 (+6) 72 (+12) 100 75
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.10 0.00 0.10 0.27
Precip Duration 2 3 9
Precip Begin 6 PM 8 PM Continuing
Precip End 11 PM Continuing Continuing
Mixing Hgt(ft-agl/msl) 4000 3300
Transport Wnd (mph) NE 6 SW 6
Vent Rate (kt-ft) 20000 16500
Max ADI Early 32 Fair 29 Fair 17 Gen Poor 20 Gen Poor
Max ADI Late 5 Very Poor 27 Fair 3 Very Poor 30 Fair
Max LVORI Early 9 9 9 9
Max LVORI Late 9 4 9 4
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY...Mostly cloudy. Lows in the mid 60s. Highs in the mid
80s. Northwest winds around 5 mph.
.MONDAY...Mostly clear. Lows around 60. Highs in the lower 80s.
West winds around 5 mph.
.TUESDAY...Mostly clear. Lows in the upper 50s. Highs in the
lower 80s. North winds around 5 mph.
.WEDNESDAY...Partly cloudy. A chance of showers and
thunderstorms. Lows in the lower 60s. Highs in the mid 80s. South
winds 5 to 10 mph.
.THURSDAY...Mostly cloudy. A chance of showers. Lows in the upper
60s. Highs in the upper 80s. Southwest winds around 5 mph.
$$
VAZ026-210800-
Rockingham-
Including the cities of Harrisonburg and Linville
232 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Pcldy Pcldy Mcldy Mcldy
Precip Type Tstms Tstms Tstms Tstms
Chance Precip (%) 40 30 70 70
Chance of Thunder (%) 20 20 30 30
Temp (24h trend) 60 (-5) 80 (-2) 61 82
RH % (24h trend) 100 (+4) 72 (+5) 100 69
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.03 0.03 0.10 0.05
Precip Duration 2 1 4 5
Precip Begin 6 PM 2 PM Continuing Continuing
Precip End 11 PM Continuing Continuing 6 PM
Mixing Hgt(ft-agl/msl) 3040 3600
Transport Wnd (mph) SE 6 SW 6
Vent Rate (kt-ft) 15200 18000
Max ADI Early 26 Fair 14 Gen Poor 11 Poor 16 Gen Poor
Max ADI Late 4 Very Poor 20 Gen Poor 2 Very Poor 26 Fair
Max LVORI Early 9 9 8 10
Max LVORI Late 9 4 9 3
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY...Partly cloudy. Lows around 60. Highs in the upper 70s.
West winds 5 to 10 mph.
.MONDAY...Clear. Lows in the mid 50s. Highs in the upper 70s.
West winds 5 to 10 mph.
.TUESDAY...Mostly clear. Lows in the mid 50s. Highs in the upper
70s. Southeast winds 5 to 10 mph.
.WEDNESDAY...Partly cloudy. A chance of showers and
thunderstorms. Lows in the upper 50s. Highs in the lower 80s.
South winds 5 to 10 mph.
.THURSDAY...Mostly cloudy. A chance of showers. Lows in the lower
60s. Highs in the lower 80s. Southwest winds around 5 mph.
$$
VAZ503-210800-
Western Highland-
Including the cities of Hightown, Mill Gap, and New Hampden
232 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Pcldy Mcldy Mcldy Mcldy
Precip Type Tstms Tstms Tstms Tstms
Chance Precip (%) 30 60 70 50
Chance of Thunder (%) 20 40 40 30
Temp (24h trend) 57 (-3) 77 (+3) 57 79
RH % (24h trend) 100 (+3) 73 (-6) 100 61
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var W 5
Precip Amount 0.01 0.13 0.15 0.05
Precip Duration 2 2 5 3
Precip Begin 6 PM 12 PM Continuing Continuing
Precip End 11 PM Continuing Continuing Continuing
Mixing Hgt(ft-agl/msl) 2430 4740
Transport Wnd (mph) S 8 W 12
Vent Rate (kt-ft) 17010 47400
Max ADI Early 65 Good 14 Gen Poor 20 Gen Poor 20 Gen Poor
Max ADI Late 4 Very Poor 23 Fair 4 Very Poor 45 Gen Good
Max LVORI Early 9 9 9 9
Max LVORI Late 9 4 9 3
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY...Mostly cloudy. Lows in the mid 50s. Highs in the lower
70s. West winds 5 to 10 mph.
.MONDAY...Mostly clear. Lows in the lower 50s. Highs in the lower
70s. West winds 10 to 15 mph.
.TUESDAY...Mostly clear. Lows in the upper 40s. Highs in the mid
70s. West winds 5 to 10 mph.
.WEDNESDAY...Partly cloudy. A chance of showers. Lows in the mid
50s. Highs in the upper 70s. Southwest winds 5 to 10 mph.
.THURSDAY...Mostly cloudy. A chance of showers and thunderstorms.
Lows in the upper 50s. Highs in the upper 70s. West winds 5 to
10 mph.
$$
VAZ508-210800-
Central Virginia Blue Ridge-
Including the city of Montebello
232 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Pcldy Pcldy Mcldy Mcldy
Precip Type Tstms Tstms Tstms Tstms
Chance Precip (%) 40 30 80 60
Chance of Thunder (%) 20 20 40 30
Temp (24h trend) 61 (-6) 78 (-4) 62 80
RH % (24h trend) 99 (+13) 73 (+15) 100 64
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.03 0.05 0.19 0.05
Precip Duration 2 1 5 5
Precip Begin 6 PM 12 PM Continuing Continuing
Precip End 12 AM Continuing Continuing Continuing
Mixing Hgt(ft-agl/msl) 2680 3950
Transport Wnd (mph) SE 6 SW 7
Vent Rate (kt-ft) 13400 23700
Max ADI Early 52 Gen Good 10 Poor 15 Gen Poor 17 Gen Poor
Max ADI Late 4 Very Poor 19 Gen Poor 3 Very Poor 31 Fair
Max LVORI Early 6 6 9 8
Max LVORI Late 7 4 8 3
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY...Partly cloudy. Lows in the lower 60s. Highs in the
upper 70s. West winds 5 to 10 mph.
.MONDAY...Clear. Lows in the upper 50s. Highs in the upper 70s.
West winds 10 to 15 mph.
.TUESDAY...Mostly clear. Lows in the mid 50s. Highs in the upper
70s. Northwest winds 5 to 10 mph.
.WEDNESDAY...Partly cloudy. A chance of showers and
thunderstorms. Lows around 60. Highs around 80. South winds 5 to
10 mph.
.THURSDAY...Partly cloudy. A chance of showers and thunderstorms.
Lows in the mid 60s. Highs in the lower 80s. Southwest winds 5 to
10 mph.
$$
VAZ506-210800-
Eastern Loudoun-
Including the cities of Gleedsville, Leesburg,
Dulles International Airport, Oak Grove, Sterling Park,
and Countryside
232 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Pcldy Pcldy Mcldy Mcldy
Precip Type Tstms None Tstms Tstms
Chance Precip (%) 30 0 60 70
Chance of Thunder (%) 20 0 20 30
Temp (24h trend) 63 (-6) 81 (-3) 66 82
RH % (24h trend) 100 (+6) 70 (+1) 100 75
Wind 20ft/early(mph) N 5 Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.25 0.00 0.10 0.08
Precip Duration 2 3 9
Precip Begin 6 PM 10 PM Continuing
Precip End 11 PM Continuing Continuing
Mixing Hgt(ft-agl/msl) 4190 3530
Transport Wnd (mph) E 6 SW 6
Vent Rate (kt-ft) 20950 17650
Max ADI Early 30 Fair 26 Fair 22 Fair 23 Fair
Max ADI Late 6 Very Poor 31 Fair 3 Very Poor 27 Fair
Max LVORI Early 8 9 8 9
Max LVORI Late 9 4 9 4
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY...Mostly cloudy. A chance of showers. Lows in the mid
60s. Highs in the lower 80s. Northwest winds 5 to 10 mph.
.MONDAY...Mostly clear. Lows in the lower 60s. Highs in the lower
80s. West winds 5 to 10 mph.
.TUESDAY...Mostly clear. Lows around 60. Highs in the lower 80s.
Northwest winds 5 to 10 mph.
.WEDNESDAY...Partly cloudy. A chance of showers and
thunderstorms. Lows in the lower 60s. Highs in the mid 80s. South
winds 5 to 10 mph.
.THURSDAY...Mostly cloudy. A chance of showers. Lows in the upper
60s. Highs in the mid 80s. Southwest winds 5 to 10 mph.
$$
VAZ507-210800-
Northern Virginia Blue Ridge-
Including the cities of Chester Gap and Skyland
232 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Pcldy Pcldy Mcldy Mcldy
Precip Type Tstms None Tstms Tstms
Chance Precip (%) 40 0 60 70
Chance of Thunder (%) 20 0 20 30
Temp (24h trend) 59 (-7) 77 (-3) 60 79
RH % (24h trend) 100 (+9) 76 (+8) 100 73
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.06 0.00 0.10 0.23
Precip Duration 2 3 5
Precip Begin 6 PM 6 PM Continuing
Precip End 11 PM Continuing 6 PM
Mixing Hgt(ft-agl/msl) 3200 3220
Transport Wnd (mph) SE 6 SW 6
Vent Rate (kt-ft) 16000 16100
Max ADI Early 28 Fair 17 Gen Poor 15 Gen Poor 16 Gen Poor
Max ADI Late 6 Very Poor 20 Gen Poor 3 Very Poor 22 Fair
Max LVORI Early 9 9 9 9
Max LVORI Late 9 4 9 4
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY...Partly cloudy. Lows in the lower 60s. Highs in the
upper 70s. West winds 5 to 10 mph.
.MONDAY...Clear. Lows in the mid 50s. Highs in the mid 70s. West
winds 5 to 10 mph.
.TUESDAY...Mostly clear. Lows in the mid 50s. Highs in the upper
70s. Northwest winds 5 to 10 mph.
.WEDNESDAY...Partly cloudy. A chance of showers and
thunderstorms. Lows around 60. Highs around 80. South winds 5 to
10 mph.
.THURSDAY...Partly cloudy. A chance of showers. Lows in the lower
60s. Highs around 80. Southwest winds 5 to 10 mph.
$$
VAZ501-210800-
Northern Fauquier-
Including the cities of Airlie, Bethel, and Warrenton
232 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Pcldy Pcldy Mcldy Mcldy
Precip Type Tstms None Tstms Tstms
Chance Precip (%) 30 0 60 70
Chance of Thunder (%) 20 0 20 30
Temp (24h trend) 62 (-6) 80 (-3) 64 82
RH % (24h trend) 100 (+7) 72 (+3) 100 75
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.19 0.00 0.07 0.14
Precip Duration 2 3 9
Precip Begin 6 PM 10 PM Continuing
Precip End 11 PM Continuing Continuing
Mixing Hgt(ft-agl/msl) 3970 3030
Transport Wnd (mph) E 6 SW 6
Vent Rate (kt-ft) 19850 15150
Max ADI Early 23 Fair 26 Fair 18 Gen Poor 15 Gen Poor
Max ADI Late 6 Very Poor 29 Fair 3 Very Poor 23 Fair
Max LVORI Early 9 8 8 9
Max LVORI Late 9 4 9 4
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY...Mostly cloudy. Lows in the mid 60s. Highs in the lower
80s. Northwest winds 5 to 10 mph.
.MONDAY...Clear. Lows around 60. Highs around 80. West winds 5 to
10 mph.
.TUESDAY...Mostly clear. Lows in the upper 50s. Highs in the
lower 80s. Northwest winds 5 to 10 mph.
.WEDNESDAY...Partly cloudy. A chance of showers and
thunderstorms. Lows in the lower 60s. Highs in the mid 80s. South
winds 5 to 10 mph.
.THURSDAY...Mostly cloudy. A chance of showers. Lows in the mid
60s. Highs in the mid 80s. Southwest winds 5 to 10 mph.
$$
VAZ029-210800-
Page-
Including the cities of Compton, Fairview, Hamburg, Kimball,
Luray, Rileyville, and Ingham
232 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Pcldy Pcldy Mcldy Mcldy
Precip Type Tstms None Tstms Tstms
Chance Precip (%) 40 0 50 70
Chance of Thunder (%) 20 0 20 30
Temp (24h trend) 60 (-6) 82 (-2) 62 85
RH % (24h trend) 100 (+4) 69 (+6) 100 68
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.06 0.00 0.06 0.12
Precip Duration 2 3 6
Precip Begin 6 PM 6 PM Continuing
Precip End 11 PM Continuing 6 PM
Mixing Hgt(ft-agl/msl) 3210 3200
Transport Wnd (mph) E 5 SW 6
Vent Rate (kt-ft) 12840 16000
Max ADI Early 18 Gen Poor 17 Gen Poor 13 Gen Poor 15 Gen Poor
Max ADI Late 4 Very Poor 23 Fair 3 Very Poor 22 Fair
Max LVORI Early 9 9 8 10
Max LVORI Late 9 4 10 3
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY...Partly cloudy. Lows in the lower 60s. Highs in the
lower 80s. West winds around 5 mph.
.MONDAY...Clear. Lows in the upper 50s. Highs in the lower 80s.
West winds around 5 mph.
.TUESDAY...Mostly clear. Lows in the mid 50s. Highs in the lower
80s. Northwest winds around 5 mph.
.WEDNESDAY...Partly cloudy. A chance of showers and
thunderstorms. Lows around 60. Highs in the mid 80s. South winds
around 5 mph.
.THURSDAY...Partly cloudy. A chance of showers. Lows in the mid
60s. Highs in the mid 80s. Southwest winds around 5 mph.
$$
WVZ506-210800-
Eastern Pendleton-
Including the cities of Brandywine, Franklin, Oak Flat, Ruddle,
and Sugar Grove
232 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Pcldy Mcldy Mcldy Mcldy
Precip Type Tstms Tstms Tstms Tstms
Chance Precip (%) 30 50 70 70
Chance of Thunder (%) 20 30 30 30
Temp (24h trend) 58 (-5) 77 (0) 59 80
RH % (24h trend) 100 (+3) 78 (+6) 100 68
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.02 0.08 0.14 0.07
Precip Duration 2 1 5 5
Precip Begin 6 PM 1 PM Continuing Continuing
Precip End 11 PM Continuing Continuing 6 PM
Mixing Hgt(ft-agl/msl) 2570 4350
Transport Wnd (mph) SE 7 W 8
Vent Rate (kt-ft) 15420 30450
Max ADI Early 35 Fair 10 Poor 13 Gen Poor 16 Gen Poor
Max ADI Late 3 Very Poor 20 Gen Poor 3 Very Poor 34 Fair
Max LVORI Early 9 9 9 9
Max LVORI Late 9 5 10 3
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY...Partly cloudy. Lows in the upper 50s. Highs in the mid
70s. West winds 5 to 10 mph.
.MONDAY...Mostly clear. Lows in the lower 50s. Highs in the mid
70s. West winds 5 to 10 mph.
.TUESDAY...Mostly clear. Lows in the lower 50s. Highs in the
upper 70s. West winds 5 to 10 mph.
.WEDNESDAY...Partly cloudy. A chance of showers and
thunderstorms. Lows in the upper 50s. Highs in the lower 80s.
Southwest winds 5 to 10 mph.
.THURSDAY...Mostly cloudy. A chance of showers and thunderstorms.
Lows in the lower 60s. Highs around 80. West winds around 5 mph.
$$
VAZ031-210800-
Clarke-
Including the cities of Berryville and Stringtown
232 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Pcldy Pcldy Mcldy Mcldy
Precip Type Tstms None Tstms Tstms
Chance Precip (%) 30 0 60 70
Chance of Thunder (%) 20 0 20 30
Temp (24h trend) 61 (-6) 81 (-1) 63 83
RH % (24h trend) 100 (+2) 67 (-6) 100 71
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.10 0.00 0.03 0.09
Precip Duration 2 3 9
Precip Begin 6 PM 10 PM Continuing
Precip End 11 PM Continuing Continuing
Mixing Hgt(ft-agl/msl) 4090 2910
Transport Wnd (mph) E 6 SW 5
Vent Rate (kt-ft) 20450 11640
Max ADI Early 33 Fair 23 Fair 23 Fair 15 Gen Poor
Max ADI Late 4 Very Poor 29 Fair 3 Very Poor 18 Gen Poor
Max LVORI Early 9 9 7 10
Max LVORI Late 9 3 9 4
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY...Mostly cloudy. A chance of showers. Lows in the lower
60s. Highs in the lower 80s. West winds 5 to 10 mph.
.MONDAY...Mostly clear. Lows in the upper 50s. Highs in the lower
80s. West winds 5 to 10 mph.
.TUESDAY...Mostly clear. Lows in the mid 50s. Highs in the lower
80s. Northwest winds 5 to 10 mph.
.WEDNESDAY...Partly cloudy. A chance of showers and
thunderstorms. Lows around 60. Highs in the mid 80s. South winds
5 to 10 mph.
.THURSDAY...Mostly cloudy. A chance of showers. Lows in the mid
60s. Highs in the mid 80s. West winds around 5 mph.
$$
WVZ053-210800-
Jefferson-
Including the cities of Ranson, Shenandoah Junction, Bloomery,
Charles Town, Middleway, Bakerton, and Millville
232 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Pcldy Pcldy Pcldy Mcldy
Precip Type Tstms None Tstms Tstms
Chance Precip (%) 20 0 60 70
Chance of Thunder (%) 20 0 20 30
Temp (24h trend) 61 (-6) 80 (-1) 64 81
RH % (24h trend) 100 (+3) 67 (-10) 100 74
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.05 0.00 0.03 0.11
Precip Duration 2 3 9
Precip Begin 6 PM 10 PM Continuing
Precip End 11 PM Continuing Continuing
Mixing Hgt(ft-agl/msl) 4230 2900
Transport Wnd (mph) SE 5 SW 6
Vent Rate (kt-ft) 16920 14500
Max ADI Early 35 Fair 24 Fair 24 Fair 14 Gen Poor
Max ADI Late 4 Very Poor 29 Fair 3 Very Poor 20 Gen Poor
Max LVORI Early 9 9 7 9
Max LVORI Late 9 3 9 4
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY...Mostly cloudy. A chance of showers. Lows in the lower
60s. Highs in the lower 80s. West winds 5 to 10 mph.
.MONDAY...Mostly clear. Lows in the upper 50s. Highs around 80.
West winds 5 to 10 mph.
.TUESDAY...Mostly clear. Lows in the upper 50s. Highs in the
lower 80s. Northwest winds 5 to 10 mph.
.WEDNESDAY...Partly cloudy. A chance of showers and
thunderstorms. Lows in the lower 60s. Highs in the mid 80s. South
winds 5 to 10 mph.
.THURSDAY...Mostly cloudy. A chance of showers. Lows in the mid
60s. Highs in the mid 80s. West winds 5 to 10 mph.
$$
VAZ030-210800-
Warren-
Including the cities of Arco, Bentonville, Buckton, Cedarville,
Front Royal, Glen Echo, and Howellsville
232 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Pcldy Pcldy Mcldy Mcldy
Precip Type Tstms None Tstms Tstms
Chance Precip (%) 30 0 60 70
Chance of Thunder (%) 20 0 20 30
Temp (24h trend) 61 (-6) 82 (-1) 63 84
RH % (24h trend) 100 (+5) 67 (-2) 100 68
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.12 0.00 0.03 0.17
Precip Duration 2 3 5
Precip Begin 6 PM 6 PM Continuing
Precip End 11 PM Continuing Continuing
Mixing Hgt(ft-agl/msl) 4020 3050
Transport Wnd (mph) SE 6 S 6
Vent Rate (kt-ft) 20100 15250
Max ADI Early 30 Fair 22 Fair 21 Fair 12 Poor
Max ADI Late 4 Very Poor 28 Fair 3 Very Poor 21 Fair
Max LVORI Early 9 9 7 10
Max LVORI Late 9 3 10 4
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY...Mostly cloudy. Lows in the lower 60s. Highs in the
lower 80s. West winds 5 to 10 mph.
.MONDAY...Mostly clear. Lows in the upper 50s. Highs in the lower
80s. West winds 5 to 10 mph.
.TUESDAY...Mostly clear. Lows in the upper 50s. Highs in the
lower 80s. Northwest winds 5 to 10 mph.
.WEDNESDAY...Partly cloudy. A chance of showers and
thunderstorms. Lows around 60. Highs in the mid 80s. South winds
around 5 mph.
.THURSDAY...Partly cloudy. A chance of showers. Lows in the mid
60s. Highs in the mid 80s. West winds around 5 mph.
$$
WVZ052-210800-
Berkeley-
Including the city of Martinsburg
232 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Pcldy Mclear Pcldy Mcldy
Precip Type Tstms None Tstms Tstms
Chance Precip (%) 20 0 60 70
Chance of Thunder (%) 20 0 20 30
Temp (24h trend) 61 (-6) 81 (+2) 64 82
RH % (24h trend) 100 (+4) 66 (-14) 100 73
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.05 0.00 0.05 0.34
Precip Duration 2 3 9
Precip Begin 6 PM 10 PM Continuing
Precip End 11 PM Continuing Continuing
Mixing Hgt(ft-agl/msl) 4230 2840
Transport Wnd (mph) E 6 SE 6
Vent Rate (kt-ft) 21150 14200
Max ADI Early 34 Fair 24 Fair 24 Fair 13 Gen Poor
Max ADI Late 4 Very Poor 30 Fair 3 Very Poor 20 Gen Poor
Max LVORI Early 8 8 6 9
Max LVORI Late 9 3 8 4
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY...Mostly cloudy. A chance of showers. Lows in the mid
60s. Highs around 80. West winds 5 to 10 mph.
.MONDAY...Mostly clear. Lows in the upper 50s. Highs in the upper
70s. West winds 5 to 10 mph.
.TUESDAY...Mostly clear. Lows in the upper 50s. Highs around 80.
Northwest winds 5 to 10 mph.
.WEDNESDAY...Partly cloudy. A chance of showers and
thunderstorms. Lows around 60. Highs in the mid 80s. South winds
around 5 mph.
.THURSDAY...Mostly cloudy. A chance of showers. Lows in the mid
60s. Highs in the mid 80s. West winds around 5 mph.
$$
WVZ051-210800-
Morgan-
Including the cities of Hancock, Shady Grove, Berkeley Spgs,
Berryville, Smith Crossroads, Magnolia, and Paw Paw
232 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Pcldy Mclear Pcldy Mcldy
Precip Type Tstms None Tstms Tstms
Chance Precip (%) 20 0 50 70
Chance of Thunder (%) 20 0 20 30
Temp (24h trend) 60 (-6) 79 (+3) 63 80
RH % (24h trend) 100 (+1) 69 (-18) 100 76
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.05 0.00 0.13 0.42
Precip Duration 2 2 8
Precip Begin 6 PM 1 AM Continuing
Precip End 11 PM Continuing Continuing
Mixing Hgt(ft-agl/msl) 4240 2880
Transport Wnd (mph) SE 6 E 7
Vent Rate (kt-ft) 21200 17280
Max ADI Early 32 Fair 23 Fair 22 Fair 15 Gen Poor
Max ADI Late 4 Very Poor 36 Fair 3 Very Poor 24 Fair
Max LVORI Early 9 9 7 10
Max LVORI Late 9 3 9 4
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY...Mostly cloudy. A chance of showers. Lows in the lower
60s. Highs in the upper 70s. West winds 5 to 10 mph.
.MONDAY...Mostly clear. Lows in the upper 50s. Highs in the upper
70s. West winds 5 to 10 mph.
.TUESDAY...Mostly clear. Lows in the mid 50s. Highs in the upper
70s. Northwest winds around 5 mph.
.WEDNESDAY...Partly cloudy. A chance of showers. Lows in the
upper 50s. Highs in the lower 80s. South winds around 5 mph.
.THURSDAY...Mostly cloudy. A chance of showers. Lows in the mid
60s. Highs in the lower 80s. West winds around 5 mph.
$$
WVZ050-210800-
Hampshire-
Including the cities of Purgitsville, Frenchburg, Romney,
Three Churches, Wapocomo, Points, and Springfield
232 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Pcldy Pcldy Pcldy Mcldy
Precip Type Tstms None Tstms Tstms
Chance Precip (%) 30 0 50 70
Chance of Thunder (%) 20 0 20 30
Temp (24h trend) 60 (-6) 78 (+1) 62 81
RH % (24h trend) 100 (+3) 70 (-12) 100 70
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.05 0.00 0.10 0.15
Precip Duration 2 2 5
Precip Begin 6 PM 6 PM Continuing
Precip End 11 PM Continuing Continuing
Mixing Hgt(ft-agl/msl) 4100 3500
Transport Wnd (mph) SE 6 SW 6
Vent Rate (kt-ft) 20500 17500
Max ADI Early 25 Fair 17 Gen Poor 22 Fair 14 Gen Poor
Max ADI Late 4 Very Poor 29 Fair 3 Very Poor 22 Fair
Max LVORI Early 9 9 7 10
Max LVORI Late 9 4 9 4
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY...Mostly cloudy. Lows in the lower 60s. Highs in the
upper 70s. West winds 5 to 10 mph.
.MONDAY...Mostly clear. Lows in the upper 50s. Highs in the upper
70s. West winds 5 to 10 mph.
.TUESDAY...Mostly clear. Lows in the mid 50s. Highs in the upper
70s. Northwest winds 5 to 10 mph.
.WEDNESDAY...Partly cloudy. A chance of showers and
thunderstorms. Lows in the upper 50s. Highs in the lower 80s.
South winds around 5 mph.
.THURSDAY...Mostly cloudy. A chance of showers. Lows in the mid
60s. Highs in the lower 80s. West winds around 5 mph.
$$
WVZ055-210800-
Hardy-
Including the cities of Brake, Bean Settlement, Fisher, McNeill,
and Moorefield
232 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Pcldy Pcldy Pcldy Mcldy
Precip Type Tstms Tstms Tstms Tstms
Chance Precip (%) 30 40 40 70
Chance of Thunder (%) 20 20 20 30
Temp (24h trend) 60 (-5) 78 (0) 61 81
RH % (24h trend) 100 (+5) 72 (-4) 100 69
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.03 0.02 0.09 0.09
Precip Duration 2 1 3 5
Precip Begin 6 PM 3 PM Continuing Continuing
Precip End 11 PM Continuing Continuing 6 PM
Mixing Hgt(ft-agl/msl) 3500 3480
Transport Wnd (mph) SE 6 W 6
Vent Rate (kt-ft) 17500 17400
Max ADI Early 20 Gen Poor 12 Poor 17 Gen Poor 13 Gen Poor
Max ADI Late 4 Very Poor 25 Fair 3 Very Poor 24 Fair
Max LVORI Early 8 8 7 9
Max LVORI Late 8 4 8 4
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY...Partly cloudy. Lows in the lower 60s. Highs in the mid
70s. West winds 5 to 10 mph.
.MONDAY...Mostly clear. Lows in the mid 50s. Highs in the mid
70s. West winds 5 to 10 mph.
.TUESDAY...Mostly clear. Lows in the mid 50s. Highs in the upper
70s. Northwest winds 5 to 10 mph.
.WEDNESDAY...Partly cloudy. A chance of showers and
thunderstorms. Lows in the upper 50s. Highs in the lower 80s.
South winds around 5 mph.
.THURSDAY...Partly cloudy. A chance of showers. Lows in the mid
60s. Highs in the lower 80s. West winds around 5 mph.
$$
MDZ509-210800-
Western Garrett-
Including the cities of Mountain Lake Park and Oakland
232 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Pcldy Pcldy Pcldy Mcldy
Precip Type Tstms Tstms Tstms Tstms
Chance Precip (%) 20 30 40 60
Chance of Thunder (%) 20 20 20 30
Temp (24h trend) 57 (-6) 74 (+3) 59 75
RH % (24h trend) 100 (0) 74 (-17) 100 73
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var W 5
Precip Amount 0.03 0.01 0.04 0.03
Precip Duration 2 1 3 5
Precip Begin 6 PM 1 PM Continuing Continuing
Precip End 11 PM Continuing Continuing Continuing
Mixing Hgt(ft-agl/msl) 3070 3500
Transport Wnd (mph) SE 10 W 9
Vent Rate (kt-ft) 27630 28000
Max ADI Early 26 Fair 21 Fair 28 Fair 22 Fair
Max ADI Late 4 Very Poor 37 Fair 5 Very Poor 35 Fair
Max LVORI Early 9 9 7 9
Max LVORI Late 9 4 9 4
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY...Showers and a chance of thunderstorms. Lows in the
upper 50s. Highs in the upper 60s. West winds 10 to 15 mph.
.MONDAY...Partly cloudy. Lows in the lower 50s. Highs in the
upper 60s. West winds 5 to 10 mph.
.TUESDAY...Mostly clear. Lows in the lower 50s. Highs in the
lower 70s. West winds 5 to 10 mph.
.WEDNESDAY...Partly cloudy. Lows in the mid 50s. Highs in the mid
70s. Southwest winds around 5 mph.
.THURSDAY...Mostly cloudy. A chance of showers and thunderstorms.
Lows in the lower 60s. Highs in the mid 70s. Southwest winds 5 to
10 mph.
$$
MDZ510-210800-
Eastern Garrett-
Including the cities of Grantsville and Kitzmiller
232 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Pcldy Pcldy Pcldy Mcldy
Precip Type Tstms None Tstms Tstms
Chance Precip (%) 20 0 40 70
Chance of Thunder (%) 20 0 20 30
Temp (24h trend) 56 (-7) 74 (+2) 60 77
RH % (24h trend) 100 (+1) 72 (-15) 100 69
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var SE 5 Lgt/Var W 5
Precip Amount 0.02 0.00 0.08 0.05
Precip Duration 2 2 5
Precip Begin 6 PM 6 PM Continuing
Precip End 11 PM Continuing Continuing
Mixing Hgt(ft-agl/msl) 3170 3280
Transport Wnd (mph) SE 8 SW 9
Vent Rate (kt-ft) 22190 26240
Max ADI Early 32 Fair 20 Gen Poor 28 Fair 20 Gen Poor
Max ADI Late 3 Very Poor 35 Fair 4 Very Poor 30 Fair
Max LVORI Early 9 8 7 8
Max LVORI Late 9 4 9 4
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY...Mostly cloudy. A chance of showers. Lows in the upper
50s. Highs around 70. West winds 10 to 15 mph.
.MONDAY...Partly cloudy. Lows in the mid 50s. Highs around 70.
West winds 10 to 15 mph.
.TUESDAY...Mostly clear. Lows in the lower 50s. Highs in the
lower 70s. West winds 5 to 10 mph.
.WEDNESDAY...Partly cloudy. Lows in the upper 50s. Highs in the
upper 70s. Southwest winds around 5 mph.
.THURSDAY...Mostly cloudy. A chance of showers and thunderstorms.
Lows in the lower 60s. Highs in the upper 70s. West winds 5 to
10 mph.
$$
MDZ008-VAZ526-210800-
Cecil-Northwest Prince William-
Including the cities of Andora, Appleton, Barksdale, Bay View,
Blake, Bohemias Mills, Brantwood, Haymarket, and Woolsey
232 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Pcldy Pcldy Cloudy
Precip Type Tstms None Tstms Tstms
Chance Precip (%) 30 0 60 70
Chance of Thunder (%) 20 0 20 30
Temp (24h trend) 62 (-7) 81 (-1) 64 81
RH % (24h trend) 100 (+8) 70 (-1) 100 78
Wind 20ft/early(mph) N 5 G20 N 5 Lgt/Var Lgt/Var
Wind 20ft/late(mph) N 5 Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.29 0.00 0.12 0.39
Precip Duration 2 3 9
Precip Begin 6 PM 9 PM Continuing
Precip End 11 PM Continuing Continuing
Mixing Hgt(ft-agl/msl) 3980 2570
Transport Wnd (mph) NE 6 SE 8
Vent Rate (kt-ft) 19900 17990
Max ADI Early 16 Gen Poor 28 Fair 20 Gen Poor 20 Gen Poor
Max ADI Late 8 Poor 33 Fair 4 Very Poor 22 Fair
Max LVORI Early 8 8 8 9
Max LVORI Late 8 3 9 4
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY...Mostly cloudy. A chance of showers and thunderstorms.
Lows in the mid 60s. Highs in the lower 80s. West winds 5 to
10 mph.
.MONDAY...Mostly clear. Lows in the lower 60s. Highs around 80.
West winds 5 to 10 mph.
.TUESDAY...Mostly clear. Lows in the lower 60s. Highs around 80.
Northwest winds around 5 mph.
.WEDNESDAY...Mostly clear. A chance of showers and thunderstorms.
Lows in the mid 60s. Highs in the mid 80s. South winds 5 to
10 mph.
.THURSDAY...Mostly cloudy. A chance of showers. Lows in the upper
60s. Highs in the mid 80s. Southwest winds 5 to 10 mph.
$$
.OUTLOOK 8 TO 14 DAYS...
Temperatures above normal. Precipitation above normal.
$$