Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Boston, MA
Issued by NWS Boston, MA
441
FNUS51 KBOX 212010
FWFBOX
Fire Weather Planning Forecast for Southern New England
National Weather Service Boston/Norton MA
409 PM EDT Fri Aug 21 2026
.DISCUSSION... Periods of showers expected to continue through
this weekend. The main focus will be towards southeast MA tonight
through Saturday night. The the focus shifts more towards
interior southern New England Sunday afternoon and evening.
Lowest relative humidity values expected to range between
70-90 percent both Saturday and Sunday.
.Outlook...Sunday Night through Friday...
High pressure arriving from the west Monday should result in
drier weather Monday through Wednesday. Another cold front and
weak low pressure may approach southern New England for next
Thursday into Friday.
MAZ015-220800-
Suffolk MA-
Including the city of Boston
409 PM EDT Fri Aug 21 2026
Tonight Sat Sat Night Sun
Cloud Cover Mcldy Mcldy Mcldy Mcldy
Precip Type Showers Showers Showers Tstms
Chance Precip (%) 20 40 40 60
Chance of Thunder (%) 0 0 0 20
Temp (24h trend) 62 (-3) 73 (0) 62 79
RH % (24h trend) 100 (0) 84 (+37) 100 74
20ft Wnd AM(mph) NE 7 Lgt/Var
20ft Wnd PM(mph) Lgt/Var NE 7 Lgt/Var SE 5
Precip Amount 0.00 0.01 0.02 0.12
Precip Duration 2 1 3
Precip Begin 6 AM Continuing Continuing
Precip End Continuing Continuing 6 PM
Mixing Hgt (ft-AGL) 570 1990 480 1970
Transport Wnd (kts) NE 9 NE 12 NE 5 E 7
Vent Rate (kt-ft) 5130 23880 2400 13790
Max ADI Early 7 Poor 1 Very Poor 5 Very Poor 11 Poor
Max ADI Late 9 Poor 1 Very Poor 3 Very Poor 1 Very Poor
Max LVORI Early 6 7 10 6
Max LVORI Late 6 7 10 6
Min Vsby Early 10 10 5 Fog 5 Fog
Min Vsby Late 10 10 5 Fog 6 Fog
Sunshine Hours N/A N/A N/A N/A
CWR 10 10 40 50
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY NIGHT...Mostly cloudy. Lows in the mid 60s. Southwest
winds around 5 mph.
.MONDAY THROUGH WEDNESDAY...Mostly clear. Lows 61 to 66. Highs
around 80. Southwest winds 5 to 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the mid 60s. Southwest
winds around 5 mph.
.THURSDAY THROUGH FRIDAY...Mostly cloudy with a chance of
showers. Lows in the mid 60s. Highs in the lower 80s. Southwest
winds 5 to 10 mph.
$$
MAZ016-220800-
Eastern Norfolk MA-
Including the city of Quincy
409 PM EDT Fri Aug 21 2026
Tonight Sat Sat Night Sun
Cloud Cover Mcldy Mcldy Mcldy Mcldy
Precip Type Showers Showers Showers Tstms
Chance Precip (%) 20 40 40 60
Chance of Thunder (%) 0 0 0 20
Temp (24h trend) 61 (-3) 73 (+1) 61 79
RH % (24h trend) 100 (0) 84 (+33) 100 72
20ft Wnd AM(mph) NE 7 Lgt/Var
20ft Wnd PM(mph) Lgt/Var NE 6 Lgt/Var Lgt/Var
Precip Amount 0.00 0.00 0.03 0.10
Precip Duration 1 2
Precip Begin 6 PM Continuing
Precip End Continuing 6 PM
Mixing Hgt (ft-AGL) 430 1920 460 1970
Transport Wnd (kts) NE 9 NE 13 NE 5 SE 8
Vent Rate (kt-ft) 3870 24960 2300 15760
Max ADI Early 8 Poor 1 Very Poor 5 Very Poor 11 Poor
Max ADI Late 11 Poor 1 Very Poor 3 Very Poor 1 Very Poor
Max LVORI Early 7 7 10 6
Max LVORI Late 7 7 10 6
Min Vsby Early 10 10 5 Fog 4 Fog
Min Vsby Late 10 10 5 Fog 6 Fog
Sunshine Hours N/A N/A N/A N/A
CWR 10 10 40 50
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY NIGHT...Mostly cloudy. Lows in the mid 60s. Southwest
winds around 5 mph.
.MONDAY THROUGH WEDNESDAY...Mostly clear. Lows 60 to 65. Highs in
the lower 80s. Southwest winds 5 to 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the lower 60s.
Southwest winds around 5 mph.
.THURSDAY THROUGH FRIDAY...Mostly cloudy with a chance of
showers. Lows in the mid 60s. Highs in the lower 80s. Southwest
winds 5 to 10 mph.
$$
MAZ013-220800-
Western Norfolk MA-
Including the cities of Foxborough and Norwood
409 PM EDT Fri Aug 21 2026
Tonight Sat Sat Night Sun
Cloud Cover Mcldy Mcldy Mcldy Mcldy
Precip Type Showers Showers Showers Tstms
Chance Precip (%) 20 30 40 60
Chance of Thunder (%) 0 0 0 20
Temp (24h trend) 59 (-4) 72 (-1) 60 79
RH % (24h trend) 100 (0) 84 (+38) 100 77
20ft Wnd AM(mph) NE 5 Lgt/Var
20ft Wnd PM(mph) Lgt/Var NE 5 Lgt/Var Lgt/Var
Precip Amount 0.00 0.00 0.03 0.13
Precip Duration 1 3
Precip Begin 6 PM Continuing
Precip End Continuing 6 PM
Mixing Hgt (ft-AGL) 430 2300 430 2260
Transport Wnd (kts) NE 8 NE 11 N 4 SE 10
Vent Rate (kt-ft) 3440 25300 1720 22600
Max ADI Early 6 Very Poor 1 Very Poor 10 Poor 15 Gen Poor
Max ADI Late 7 Poor 1 Very Poor 2 Very Poor 18 Gen Poor
Max LVORI Early 9 8 10 6
Max LVORI Late 9 8 10 6
Min Vsby Early 10 10 5 Fog 3 Fog
Min Vsby Late 10 10 5 Fog 5 Fog
Sunshine Hours N/A N/A N/A N/A
CWR 10 10 40 50
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY NIGHT...Mostly cloudy. Lows in the lower 60s. Southwest
winds around 5 mph.
.MONDAY THROUGH WEDNESDAY...Mostly clear. Lows 57 to 62. Highs in
the lower 80s. West winds 5 to 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the lower 60s.
Southwest winds around 5 mph.
.THURSDAY THROUGH FRIDAY...Mostly cloudy with a chance of
showers. Lows in the lower 60s. Highs in the lower 80s. Southwest
winds around 5 mph.
$$
MAZ014-220800-
Southeast Middlesex MA-
Including the city of Cambridge
409 PM EDT Fri Aug 21 2026
Tonight Sat Sat Night Sun
Cloud Cover Mcldy Mcldy Mcldy Mcldy
Precip Type Showers Showers Showers Tstms
Chance Precip (%) 20 40 40 60
Chance of Thunder (%) 0 0 0 20
Temp (24h trend) 61 (-3) 73 (-2) 61 78
RH % (24h trend) 97 (-3) 81 (+34) 100 74
20ft Wnd AM(mph) NE 5 Lgt/Var
20ft Wnd PM(mph) Lgt/Var NE 6 Lgt/Var Lgt/Var
Precip Amount 0.00 0.03 0.02 0.19
Precip Duration 2 1 4
Precip Begin 6 AM Continuing Continuing
Precip End Continuing Continuing 6 PM
Mixing Hgt (ft-AGL) 610 2400 430 2090
Transport Wnd (kts) N 9 NE 11 NE 4 SE 8
Vent Rate (kt-ft) 5490 26400 1720 16720
Max ADI Early 25 Fair 1 Very Poor 4 Very Poor 12 Poor
Max ADI Late 7 Poor 1 Very Poor 2 Very Poor 1 Very Poor
Max LVORI Early 6 6 10 6
Max LVORI Late 6 6 10 6
Min Vsby Early 10 10 5 Fog 3 Fog
Min Vsby Late 10 10 3 Fog 4 Fog
Sunshine Hours N/A N/A N/A N/A
CWR 10 10 40 50
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY NIGHT...Mostly cloudy with a chance of showers. Lows in
the mid 60s. Southwest winds around 5 mph.
.MONDAY...Sunny. Highs in the lower 80s. Southwest winds 5 to
10 mph.
.MONDAY NIGHT...Clear. Lows in the upper 50s. Southwest winds
around 5 mph.
.TUESDAY THROUGH WEDNESDAY...Mostly clear. Lows around 60. Highs
in the lower 80s. West winds 5 to 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the lower 60s.
Southwest winds around 5 mph.
.THURSDAY THROUGH FRIDAY...Mostly cloudy with a chance of
showers. Lows in the mid 60s. Highs in the lower 80s. Southwest
winds around 5 mph.
$$
MAZ007-220800-
Eastern Essex MA-
Including the city of Gloucester
409 PM EDT Fri Aug 21 2026
Tonight Sat Sat Night Sun
Cloud Cover Mcldy Mcldy Mcldy Mcldy
Precip Type Showers Showers Showers Tstms
Chance Precip (%) 20 40 40 50
Chance of Thunder (%) 0 0 0 20
Temp (24h trend) 60 (-4) 73 (+1) 60 78
RH % (24h trend) 100 (0) 81 (+30) 100 79
20ft Wnd AM(mph) NE 7 Lgt/Var
20ft Wnd PM(mph) Lgt/Var NE 7 Lgt/Var Lgt/Var
Precip Amount 0.00 0.02 0.02 0.10
Precip Duration 2 1 2
Precip Begin 6 AM Continuing Continuing
Precip End Continuing Continuing 6 PM
Mixing Hgt (ft-AGL) 440 1660 430 1640
Transport Wnd (kts) NE 9 NE 13 NE 4 E 8
Vent Rate (kt-ft) 3960 21580 1720 13120
Max ADI Early 5 Very Poor 1 Very Poor 7 Poor 10 Poor
Max ADI Late 10 Poor 1 Very Poor 3 Very Poor 1 Very Poor
Max LVORI Early 7 7 10 7
Max LVORI Late 7 7 10 7
Min Vsby Early 10 10 5 Fog 4 Fog
Min Vsby Late 10 10 3 Fog 8
Sunshine Hours N/A N/A N/A N/A
CWR 10 10 40 40
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY NIGHT...Mostly cloudy. Lows in the mid 60s. South winds
around 5 mph.
.MONDAY...Sunny. Highs in the lower 80s. Southwest winds 5 to
10 mph.
.MONDAY NIGHT...Clear. Lows around 60. Southwest winds 5 to
10 mph.
.TUESDAY AND TUESDAY NIGHT...Mostly clear. Lows around 60. Highs
in the upper 70s. West winds 5 to 10 mph.
.WEDNESDAY...Sunny. Highs in the lower 80s. Southwest winds
around 5 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the lower 60s.
Southwest winds around 5 mph.
.THURSDAY THROUGH FRIDAY...Mostly cloudy with a chance of
showers. Lows in the mid 60s. Highs around 80. South winds 5 to
10 mph.
$$
MAZ006-220800-
Western Essex MA-
Including the city of Lawrence
409 PM EDT Fri Aug 21 2026
Tonight Sat Sat Night Sun
Cloud Cover Mcldy Mcldy Mcldy Mcldy
Precip Type None Showers Showers Tstms
Chance Precip (%) 10 40 30 60
Chance of Thunder (%) 0 0 0 20
Temp (24h trend) 58 (-5) 73 (-2) 59 78
RH % (24h trend) 100 (0) 81 (+34) 100 79
20ft Wnd AM(mph) Lgt/Var Lgt/Var
20ft Wnd PM(mph) Lgt/Var NE 5 Lgt/Var Lgt/Var
Precip Amount 0.00 0.08 0.04 0.21
Precip Duration 2 1 3
Precip Begin 6 AM Continuing Continuing
Precip End Continuing Continuing 6 PM
Mixing Hgt (ft-AGL) 420 2270 410 2220
Transport Wnd (kts) NE 8 NE 12 NE 4 SE 8
Vent Rate (kt-ft) 3360 27240 1640 17760
Max ADI Early 21 Fair 1 Very Poor 4 Very Poor 13 Gen Poor
Max ADI Late 6 Very Poor 1 Very Poor 3 Very Poor 15 Gen Poor
Max LVORI Early 8 7 10 6
Max LVORI Late 8 7 10 6
Min Vsby Early 10 10 5 Fog 3 Fog
Min Vsby Late 10 6 Fog 3 Fog 3 Fog
Sunshine Hours N/A N/A N/A N/A
CWR 0 30 30 50
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY NIGHT...Mostly cloudy with a chance of showers. Lows in
the lower 60s. Southwest winds around 5 mph.
.MONDAY THROUGH WEDNESDAY...Mostly clear. Lows 57 to 62. Highs in
the lower 80s. West winds 5 to 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows around 60. Southwest winds
around 5 mph.
.THURSDAY THROUGH FRIDAY...Mostly cloudy with a chance of
showers. Lows in the lower 60s. Highs in the lower 80s. Southwest
winds around 5 mph.
$$
MAZ005-220800-
Central Middlesex MA-
Including the cities of Framingham and Lowell
409 PM EDT Fri Aug 21 2026
Tonight Sat Sat Night Sun
Cloud Cover Mcldy Mcldy Mcldy Mcldy
Precip Type None Showers Showers Tstms
Chance Precip (%) 10 40 40 60
Chance of Thunder (%) 0 0 0 20
Temp (24h trend) 57 (-6) 73 (-2) 59 78
RH % (24h trend) 100 (0) 79 (+32) 100 76
20ft Wnd AM(mph) Lgt/Var Lgt/Var
20ft Wnd PM(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.00 0.04 0.04 0.24
Precip Duration 2 2 4
Precip Begin 6 AM Continuing Continuing
Precip End Continuing Continuing Continuing
Mixing Hgt (ft-AGL) 420 2770 420 2430
Transport Wnd (kts) NE 6 NE 10 E 4 SE 8
Vent Rate (kt-ft) 2520 27700 1680 19440
Max ADI Early 30 Fair 3 Very Poor 12 Poor 14 Gen Poor
Max ADI Late 5 Very Poor 1 Very Poor 2 Very Poor 16 Gen Poor
Max LVORI Early 8 6 10 6
Max LVORI Late 8 6 10 6
Min Vsby Early 10 10 5 Fog 3 Fog
Min Vsby Late 10 8 3 Fog 3 Fog
Sunshine Hours N/A N/A N/A N/A
CWR 0 20 30 50
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY NIGHT...Mostly cloudy with a chance of showers. Lows in
the lower 60s. Southwest winds around 5 mph.
.MONDAY...Sunny. Highs in the lower 80s. Southwest winds 5 to
10 mph.
.MONDAY NIGHT...Clear. Lows in the upper 50s. Southwest winds
5 to 10 mph.
.TUESDAY THROUGH WEDNESDAY...Mostly clear. Lows in the upper 50s.
Highs in the lower 80s. West winds around 5 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows around 60. Southwest winds
around 5 mph.
.THURSDAY THROUGH FRIDAY...Mostly cloudy with a chance of
showers. Lows in the lower 60s. Highs in the lower 80s. West
winds around 5 mph.
$$
MAZ012-220800-
Southern Worcester MA-
Including the cities of Milford and Worcester
409 PM EDT Fri Aug 21 2026
Tonight Sat Sat Night Sun
Cloud Cover Mcldy Mcldy Mcldy Mcldy
Precip Type None Showers Showers Tstms
Chance Precip (%) 10 30 40 60
Chance of Thunder (%) 0 0 0 30
Temp (24h trend) 57 (-3) 73 (-1) 59 77
RH % (24h trend) 100 (0) 81 (+29) 100 79
20ft Wnd AM(mph) NE 5 Lgt/Var
20ft Wnd PM(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.00 0.02 0.03 0.21
Precip Duration 2 1 6
Precip Begin 6 AM Continuing Continuing
Precip End Continuing Continuing Continuing
Mixing Hgt (ft-AGL) 420 2790 430 2370
Transport Wnd (kts) N 7 NE 10 NE 4 S 8
Vent Rate (kt-ft) 2940 27900 1720 18960
Max ADI Early 35 Fair 1 Very Poor 11 Poor 15 Gen Poor
Max ADI Late 6 Very Poor 1 Very Poor 3 Very Poor 16 Gen Poor
Max LVORI Early 9 7 10 6
Max LVORI Late 9 7 10 6
Min Vsby Early 10 10 9 4 Fog
Min Vsby Late 10 9 5 Fog 4 Fog
Sunshine Hours N/A N/A N/A N/A
CWR 0 10 40 50
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows around 60. Southwest winds around 5 mph.
.MONDAY...Sunny. Highs around 80. Southwest winds 5 to 10 mph.
.MONDAY NIGHT...Clear. Lows in the mid 50s. West winds 5 to
10 mph.
.TUESDAY THROUGH WEDNESDAY...Mostly clear. Lows in the mid 50s.
Highs in the upper 70s. West winds 5 to 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows around 60. Southwest winds
around 5 mph.
.THURSDAY...Partly sunny with a chance of showers. Highs around
80. South winds around 5 mph.
.THURSDAY NIGHT...Mostly cloudy with a chance of showers. Lows in
the lower 60s. South winds around 5 mph.
.FRIDAY...Partly sunny with a chance of showers. Highs in the
lower 80s. West winds around 5 mph.
$$
MAZ004-220800-
Northern Worcester MA-
Including the cities of Barre and Fitchburg
409 PM EDT Fri Aug 21 2026
Tonight Sat Sat Night Sun
Cloud Cover Pcldy Mcldy Mcldy Mcldy
Precip Type None Showers Showers Tstms
Chance Precip (%) 10 30 30 70
Chance of Thunder (%) 0 0 0 30
Temp (24h trend) 54 (-6) 72 (-2) 56 76
RH % (24h trend) 100 (0) 73 (+21) 100 76
20ft Wnd AM(mph) Lgt/Var Lgt/Var
20ft Wnd PM(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.00 0.02 0.03 0.14
Precip Duration 1 1 4
Precip Begin 8 AM Continuing Continuing
Precip End Continuing Continuing Continuing
Mixing Hgt (ft-AGL) 410 2890 420 2250
Transport Wnd (kts) NE 6 NE 10 NE 4 S 8
Vent Rate (kt-ft) 2460 28900 1680 18000
Max ADI Early 24 Fair 1 Very Poor 11 Poor 17 Gen Poor
Max ADI Late 5 Very Poor 1 Very Poor 3 Very Poor 17 Gen Poor
Max LVORI Early 9 6 10 6
Max LVORI Late 9 6 10 6
Min Vsby Early 10 10 9 3 Fog
Min Vsby Late 10 9 3 Fog 6 Fog
Sunshine Hours N/A N/A N/A N/A
CWR 0 10 30 40
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the upper 50s. Southwest winds around
5 mph.
.MONDAY THROUGH WEDNESDAY...Mostly clear. Lows in the mid 50s.
Highs in the upper 70s. West winds 5 to 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the upper 50s.
Southwest winds around 5 mph.
.THURSDAY...Partly sunny with a chance of showers. Highs in the
upper 70s. South winds around 5 mph.
.THURSDAY NIGHT...Mostly cloudy with a chance of showers. Lows in
the lower 60s. South winds around 5 mph.
.FRIDAY...Partly sunny with a chance of showers. Highs around 80.
Southwest winds around 5 mph.
$$
MAZ026-220800-
Northern Middlesex MA-
Including the city of Ayer
409 PM EDT Fri Aug 21 2026
Tonight Sat Sat Night Sun
Cloud Cover Pcldy Mcldy Mcldy Mcldy
Precip Type None Showers Showers Tstms
Chance Precip (%) 10 30 30 70
Chance of Thunder (%) 0 0 0 30
Temp (24h trend) 55 (-7) 74 (-2) 57 78
RH % (24h trend) 100 (0) 79 (+27) 100 76
20ft Wnd AM(mph) Lgt/Var Lgt/Var
20ft Wnd PM(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.00 0.07 0.04 0.13
Precip Duration 2 1 5
Precip Begin 8 AM Continuing Continuing
Precip End Continuing Continuing Continuing
Mixing Hgt (ft-AGL) 410 2920 420 2430
Transport Wnd (kts) N 6 NE 10 E 4 SE 7
Vent Rate (kt-ft) 2460 29200 1680 17010
Max ADI Early 35 Fair 16 Gen Poor 12 Poor 18 Gen Poor
Max ADI Late 4 Very Poor 1 Very Poor 2 Very Poor 19 Gen Poor
Max LVORI Early 7 6 10 5
Max LVORI Late 7 6 10 5
Min Vsby Early 10 10 6 Fog 6 Fog
Min Vsby Late 10 6 Fog 4 Fog 6 Fog
Sunshine Hours N/A N/A N/A N/A
CWR 0 20 30 40
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the upper 50s. Southwest winds around
5 mph.
.MONDAY THROUGH WEDNESDAY...Mostly clear. Lows 54 to 59. Highs in
the lower 80s. West winds 5 to 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the upper 50s.
Southwest winds around 5 mph.
.THURSDAY AND THURSDAY NIGHT...Mostly cloudy. A chance of
showers. Lows around 60. Highs in the lower 80s. Southwest winds
around 5 mph.
.FRIDAY...Partly sunny with a chance of showers. Highs in the
lower 80s. West winds around 5 mph.
$$
MAZ002-220800-
Western Franklin MA-
Including the city of Charlemont
409 PM EDT Fri Aug 21 2026
Tonight Sat Sat Night Sun
Cloud Cover Pcldy Mcldy Mcldy Mcldy
Precip Type None Showers Showers Tstms
Chance Precip (%) 20 20 80
Chance of Thunder (%) 0 0 0 30
Temp (24h trend) 52 (-5) 72 (-2) 55 74
RH % (24h trend) 96 (-4) 71 (+14) 100 76
20ft Wnd AM(mph) Lgt/Var Lgt/Var
20ft Wnd PM(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.00 0.00 0.02 0.07
Precip Duration 1 4
Precip Begin 6 PM Continuing
Precip End Continuing Continuing
Mixing Hgt (ft-AGL) 430 3500 420 2440
Transport Wnd (kts) N 4 E 7 E 5 S 8
Vent Rate (kt-ft) 1720 24500 2100 19520
Max ADI Early 16 Gen Poor 20 Gen Poor 14 Gen Poor 15 Gen Poor
Max ADI Late 3 Very Poor 21 Fair 3 Very Poor 18 Gen Poor
Max LVORI Early 7 4 10 5
Max LVORI Late 7 4 10 5
Min Vsby Early 10 10 10 3 Fog
Min Vsby Late 10 10 3 Fog 6 Fog
Sunshine Hours N/A N/A N/A N/A
CWR 0 10 20 40
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY NIGHT...Partly cloudy with showers likely and a chance of
thunderstorms. Lows in the mid 50s. Southwest winds around 5 mph.
.MONDAY...Mostly sunny. Highs in the mid 70s. West winds around
5 mph.
.MONDAY NIGHT THROUGH WEDNESDAY...Mostly clear. Lows in the lower
50s. Highs in the mid 70s. West winds around 5 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the mid 50s. Southwest
winds around 5 mph.
.THURSDAY THROUGH FRIDAY...Mostly cloudy with a chance of
showers. Lows in the upper 50s. Highs in the upper 70s. West
winds around 5 mph.
$$
MAZ003-220800-
Eastern Franklin MA-
Including the cities of Greenfield and Orange
409 PM EDT Fri Aug 21 2026
Tonight Sat Sat Night Sun
Cloud Cover Pcldy Mcldy Mcldy Mcldy
Precip Type None Showers Showers Tstms
Chance Precip (%) 20 30 70
Chance of Thunder (%) 0 0 0 30
Temp (24h trend) 55 (-4) 75 (-1) 59 77
RH % (24h trend) 100 (0) 69 (+13) 100 74
20ft Wnd AM(mph) Lgt/Var Lgt/Var
20ft Wnd PM(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.00 0.01 0.01 0.06
Precip Duration 1 1 4
Precip Begin 11 AM Continuing Continuing
Precip End Continuing Continuing Continuing
Mixing Hgt (ft-AGL) 420 3670 410 2640
Transport Wnd (kts) N 6 E 7 E 4 S 8
Vent Rate (kt-ft) 2520 25690 1640 21120
Max ADI Early 18 Gen Poor 11 Poor 11 Poor 16 Gen Poor
Max ADI Late 4 Very Poor 4 Very Poor 2 Very Poor 16 Gen Poor
Max LVORI Early 9 4 10 6
Max LVORI Late 9 4 10 6
Min Vsby Early 10 10 10 3 Fog
Min Vsby Late 10 10 2 Fog 8
Sunshine Hours N/A N/A N/A N/A
CWR 0 10 20 30
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the upper 50s. Southwest winds around
5 mph.
.MONDAY THROUGH WEDNESDAY...Mostly clear. Lows in the mid 50s.
Highs in the upper 70s. Southwest winds 5 to 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the upper 50s. South
winds around 5 mph.
.THURSDAY THROUGH FRIDAY...Mostly cloudy with a chance of
showers. Lows around 60. Highs in the lower 80s. Southwest winds
around 5 mph.
$$
MAZ008-220800-
Western Hampshire MA-
Including the city of Chesterfield
409 PM EDT Fri Aug 21 2026
Tonight Sat Sat Night Sun
Cloud Cover Pcldy Mcldy Mcldy Mcldy
Precip Type None Showers Showers Tstms
Chance Precip (%) 20 30 80
Chance of Thunder (%) 0 0 0 30
Temp (24h trend) 53 (-4) 73 (-1) 56 75
RH % (24h trend) 100 (+3) 74 (+15) 100 76
20ft Wnd AM(mph) Lgt/Var Lgt/Var
20ft Wnd PM(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.00 0.01 0.02 0.08
Precip Duration 1 1 4
Precip Begin 1 PM Continuing Continuing
Precip End Continuing Continuing Continuing
Mixing Hgt (ft-AGL) 430 3410 420 2440
Transport Wnd (kts) NE 4 E 7 E 5 S 8
Vent Rate (kt-ft) 1720 23870 2100 19520
Max ADI Early 23 Fair 19 Gen Poor 14 Gen Poor 14 Gen Poor
Max ADI Late 4 Very Poor 20 Gen Poor 3 Very Poor 15 Gen Poor
Max LVORI Early 7 6 10 6
Max LVORI Late 7 6 10 6
Min Vsby Early 10 10 10 3 Fog
Min Vsby Late 10 10 3 Fog 6 Fog
Sunshine Hours N/A N/A N/A N/A
CWR 0 10 20 40
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY NIGHT...Partly cloudy with showers likely and a chance of
thunderstorms. Lows in the mid 50s. Southwest winds around 5 mph.
.MONDAY THROUGH WEDNESDAY...Mostly clear. Lows in the mid 50s.
Highs in the mid 70s. West winds around 5 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the upper 50s.
Southwest winds around 5 mph.
.THURSDAY THROUGH FRIDAY...Mostly cloudy with a chance of
showers. Lows in the upper 50s. Highs in the upper 70s. West
winds around 5 mph.
$$
MAZ010-220800-
Eastern Hampshire MA-
Including the cities of Amherst and Northampton
409 PM EDT Fri Aug 21 2026
Tonight Sat Sat Night Sun
Cloud Cover Pcldy Mcldy Mcldy Mcldy
Precip Type None Showers Showers Tstms
Chance Precip (%) 10 20 30 70
Chance of Thunder (%) 0 0 0 30
Temp (24h trend) 56 (-4) 76 (0) 59 78
RH % (24h trend) 100 (0) 74 (+14) 100 74
20ft Wnd AM(mph) Lgt/Var Lgt/Var
20ft Wnd PM(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.00 0.01 0.02 0.08
Precip Duration 1 1 4
Precip Begin 11 AM Continuing Continuing
Precip End Continuing Continuing Continuing
Mixing Hgt (ft-AGL) 410 3490 400 2770
Transport Wnd (kts) N 6 NE 7 E 4 S 7
Vent Rate (kt-ft) 2460 24430 1600 19390
Max ADI Early 19 Gen Poor 1 Very Poor 7 Poor 14 Gen Poor
Max ADI Late 5 Very Poor 1 Very Poor 2 Very Poor 1 Very Poor
Max LVORI Early 8 5 10 6
Max LVORI Late 8 5 10 6
Min Vsby Early 10 10 10 3 Fog
Min Vsby Late 10 10 3 Fog 8
Sunshine Hours N/A N/A N/A N/A
CWR 0 10 30 40
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY NIGHT...Partly cloudy with showers likely and a chance of
thunderstorms. Lows in the upper 50s. Southwest winds around
5 mph.
.MONDAY THROUGH WEDNESDAY...Mostly clear. Lows in the mid 50s.
Highs around 80. Southwest winds 5 to 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the upper 50s. South
winds around 5 mph.
.THURSDAY THROUGH FRIDAY...Mostly cloudy with a chance of
showers. Lows around 60. Highs in the lower 80s. Southwest winds
around 5 mph.
$$
MAZ009-220800-
Western Hampden MA-
Including the city of Blandford
409 PM EDT Fri Aug 21 2026
Tonight Sat Sat Night Sun
Cloud Cover Pcldy Mcldy Mcldy Mcldy
Precip Type None Showers Showers Tstms
Chance Precip (%) 20 30 80
Chance of Thunder (%) 0 0 0 30
Temp (24h trend) 54 (-4) 73 (-1) 58 75
RH % (24h trend) 100 (0) 78 (+14) 100 76
20ft Wnd AM(mph) Lgt/Var Lgt/Var
20ft Wnd PM(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.00 0.01 0.04 0.08
Precip Duration 0 1 5
Precip Begin 1 PM Continuing Continuing
Precip End Continuing Continuing Continuing
Mixing Hgt (ft-AGL) 420 3230 420 2410
Transport Wnd (kts) N 7 E 7 E 5 S 8
Vent Rate (kt-ft) 2940 22610 2100 19280
Max ADI Early 40 Fair 9 Poor 15 Gen Poor 13 Gen Poor
Max ADI Late 4 Very Poor 19 Gen Poor 3 Very Poor 14 Gen Poor
Max LVORI Early 9 6 10 6
Max LVORI Late 9 6 10 6
Min Vsby Early 10 10 10 3 Fog
Min Vsby Late 10 10 3 Fog 8
Sunshine Hours N/A N/A N/A N/A
CWR 0 10 30 30
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY NIGHT...Partly cloudy with showers likely and a chance of
thunderstorms. Lows in the upper 50s. Southwest winds around
5 mph.
.MONDAY THROUGH WEDNESDAY...Mostly clear. Lows in the mid 50s.
Highs in the upper 70s. West winds around 5 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the upper 50s.
Southwest winds around 5 mph.
.THURSDAY THROUGH FRIDAY...Mostly cloudy with a chance of
showers. Lows around 60. Highs around 80. West winds around
5 mph.
$$
MAZ011-220800-
Eastern Hampden MA-
Including the city of Springfield
409 PM EDT Fri Aug 21 2026
Tonight Sat Sat Night Sun
Cloud Cover Pcldy Mcldy Mcldy Mcldy
Precip Type None Showers Showers Tstms
Chance Precip (%) 10 30 40 70
Chance of Thunder (%) 0 0 0 30
Temp (24h trend) 57 (-4) 76 (0) 59 79
RH % (24h trend) 100 (0) 71 (+11) 100 72
20ft Wnd AM(mph) Lgt/Var Lgt/Var
20ft Wnd PM(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.00 0.01 0.03 0.09
Precip Duration 1 1 4
Precip Begin 11 AM Continuing Continuing
Precip End Continuing Continuing Continuing
Mixing Hgt (ft-AGL) 410 3300 420 2780
Transport Wnd (kts) N 6 NE 7 E 4 S 7
Vent Rate (kt-ft) 2460 23100 1680 19460
Max ADI Early 21 Fair 1 Very Poor 8 Poor 12 Poor
Max ADI Late 5 Very Poor 1 Very Poor 3 Very Poor 1 Very Poor
Max LVORI Early 8 6 10 6
Max LVORI Late 8 6 10 6
Min Vsby Early 10 10 10 3 Fog
Min Vsby Late 10 10 5 Fog 8
Sunshine Hours N/A N/A N/A N/A
CWR 0 10 30 40
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY NIGHT...Partly cloudy with showers likely and a chance of
thunderstorms. Lows in the upper 50s. Southwest winds around
5 mph.
.MONDAY THROUGH WEDNESDAY...Mostly clear. Lows 54 to 59. Highs
around 80. Southwest winds 5 to 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the upper 50s. South
winds around 5 mph.
.THURSDAY THROUGH FRIDAY...Mostly cloudy with a chance of
showers. Lows in the lower 60s. Highs in the lower 80s. Southwest
winds around 5 mph.
$$
CTZ002-220800-
Hartford CT-
Including the cities of Hartford and Windsor Locks
409 PM EDT Fri Aug 21 2026
Tonight Sat Sat Night Sun
Cloud Cover Pcldy Mcldy Mcldy Mcldy
Precip Type None Showers Showers Tstms
Chance Precip (%) 10 20 40 70
Chance of Thunder (%) 0 0 0 30
Temp (24h trend) 57 (-4) 76 (0) 60 80
RH % (24h trend) 100 (0) 74 (+12) 100 72
20ft Wnd AM(mph) Lgt/Var Lgt/Var
20ft Wnd PM(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.00 0.01 0.05 0.09
Precip Duration 0 1 5
Precip Begin 1 PM Continuing Continuing
Precip End Continuing Continuing Continuing
Mixing Hgt (ft-AGL) 410 2950 420 2810
Transport Wnd (kts) N 5 NE 6 E 5 S 8
Vent Rate (kt-ft) 2050 17700 2100 22480
Max ADI Early 22 Fair 1 Very Poor 12 Poor 11 Poor
Max ADI Late 5 Very Poor 19 Gen Poor 3 Very Poor 12 Poor
Max LVORI Early 9 5 10 5
Max LVORI Late 9 5 10 5
Min Vsby Early 10 10 9 3 Fog
Min Vsby Late 10 9 4 Fog 7
Sunshine Hours N/A N/A N/A N/A
CWR 0 10 40 40
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY NIGHT...Partly cloudy with showers likely and a chance of
thunderstorms. Lows in the upper 50s. Southwest winds around
5 mph.
.MONDAY THROUGH WEDNESDAY...Mostly clear. Lows in the upper 50s.
Highs around 80. Southwest winds 5 to 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows around 60. South winds
around 5 mph.
.THURSDAY THROUGH FRIDAY...Mostly cloudy with a chance of
showers. Lows in the lower 60s. Highs in the lower 80s. Southwest
winds around 5 mph.
$$
CTZ003-220800-
Tolland CT-
Including the cities of Union and Vernon
409 PM EDT Fri Aug 21 2026
Tonight Sat Sat Night Sun
Cloud Cover Pcldy Mcldy Mcldy Mcldy
Precip Type None Showers Showers Tstms
Chance Precip (%) 10 30 40 70
Chance of Thunder (%) 0 0 0 30
Temp (24h trend) 57 (-3) 74 (-1) 60 79
RH % (24h trend) 100 (0) 76 (+12) 100 74
20ft Wnd AM(mph) Lgt/Var Lgt/Var
20ft Wnd PM(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.00 0.01 0.03 0.25
Precip Duration 1 1 6
Precip Begin 11 AM Continuing Continuing
Precip End Continuing Continuing Continuing
Mixing Hgt (ft-AGL) 420 2820 420 2640
Transport Wnd (kts) NE 6 NE 8 E 5 S 8
Vent Rate (kt-ft) 2520 22560 2100 21120
Max ADI Early 22 Fair 1 Very Poor 12 Poor 14 Gen Poor
Max ADI Late 5 Very Poor 18 Gen Poor 3 Very Poor 15 Gen Poor
Max LVORI Early 9 7 10 7
Max LVORI Late 9 7 10 7
Min Vsby Early 10 10 10 3 Fog
Min Vsby Late 10 10 3 Fog 3 Fog
Sunshine Hours N/A N/A N/A N/A
CWR 0 10 40 50
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY NIGHT...Partly cloudy with showers likely and a chance of
thunderstorms. Lows around 60. Southwest winds around 5 mph.
.MONDAY THROUGH WEDNESDAY...Mostly clear. Lows 55 to 60. Highs in
the upper 70s. Southwest winds 5 to 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows around 60. South winds
around 5 mph.
.THURSDAY THROUGH FRIDAY...Mostly cloudy with a chance of
showers. Lows in the lower 60s. Highs in the lower 80s. Southwest
winds around 5 mph.
$$
CTZ004-220800-
Windham CT-
Including the cities of Putnam and Willimantic
409 PM EDT Fri Aug 21 2026
Tonight Sat Sat Night Sun
Cloud Cover Mcldy Mcldy Mcldy Mcldy
Precip Type None Showers Showers Tstms
Chance Precip (%) 10 30 40 60
Chance of Thunder (%) 0 0 0 30
Temp (24h trend) 58 (-3) 74 (0) 60 78
RH % (24h trend) 100 (0) 84 (+26) 100 77
20ft Wnd AM(mph) Lgt/Var Lgt/Var
20ft Wnd PM(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.00 0.02 0.04 0.22
Precip Duration 1 1 5
Precip Begin 8 AM Continuing Continuing
Precip End Continuing Continuing Continuing
Mixing Hgt (ft-AGL) 430 2730 420 2520
Transport Wnd (kts) NE 7 NE 8 E 5 S 9
Vent Rate (kt-ft) 3010 21840 2100 22680
Max ADI Early 29 Fair 1 Very Poor 11 Poor 16 Gen Poor
Max ADI Late 6 Very Poor 2 Very Poor 3 Very Poor 2 Very Poor
Max LVORI Early 9 7 10 8
Max LVORI Late 9 7 10 8
Min Vsby Early 10 10 9 4 Fog
Min Vsby Late 10 9 3 Fog 4 Fog
Sunshine Hours N/A N/A N/A N/A
CWR 0 10 40 50
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the lower 60s. Southwest winds around
5 mph.
.MONDAY...Sunny. Highs around 80. Southwest winds 5 to 10 mph.
.MONDAY NIGHT...Clear. Lows in the mid 50s. West winds around
5 mph.
.TUESDAY THROUGH WEDNESDAY...Mostly clear. Lows in the mid 50s.
Highs around 80. Southwest winds 5 to 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows around 60. Southwest winds
around 5 mph.
.THURSDAY...Partly sunny with a chance of showers. Highs around
80. South winds around 5 mph.
.THURSDAY NIGHT AND FRIDAY...Mostly cloudy. A chance of showers.
Lows in the lower 60s. Highs in the lower 80s. Southwest winds
around 5 mph.
$$
RIZ001-220800-
Northwest Providence RI-
Including the cities of Foster and Smithfield
409 PM EDT Fri Aug 21 2026
Tonight Sat Sat Night Sun
Cloud Cover Mcldy Mcldy Mcldy Mcldy
Precip Type Showers Showers Showers Tstms
Chance Precip (%) 20 30 40 60
Chance of Thunder (%) 0 0 0 30
Temp (24h trend) 59 (-2) 73 (0) 60 78
RH % (24h trend) 100 (0) 87 (+34) 100 76
20ft Wnd AM(mph) NE 5 Lgt/Var
20ft Wnd PM(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.00 0.01 0.04 0.11
Precip Duration 2 1 4
Precip Begin 6 AM Continuing Continuing
Precip End Continuing Continuing 6 PM
Mixing Hgt (ft-AGL) 450 2400 430 2350
Transport Wnd (kts) NE 8 NE 9 E 4 S 9
Vent Rate (kt-ft) 3600 21600 1720 21150
Max ADI Early 23 Fair 1 Very Poor 10 Poor 15 Gen Poor
Max ADI Late 7 Poor 1 Very Poor 2 Very Poor 18 Gen Poor
Max LVORI Early 9 8 10 6
Max LVORI Late 9 8 10 6
Min Vsby Early 10 10 10 4 Fog
Min Vsby Late 10 10 5 Fog 5 Fog
Sunshine Hours N/A N/A N/A N/A
CWR 10 10 40 50
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the lower 60s. Southwest winds around
5 mph.
.MONDAY THROUGH WEDNESDAY...Mostly clear. Lows 56 to 62. Highs in
the upper 70s. Southwest winds 5 to 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the lower 60s.
Southwest winds around 5 mph.
.THURSDAY THROUGH FRIDAY...Mostly cloudy with a chance of
showers. Lows in the lower 60s. Highs in the lower 80s. Southwest
winds around 5 mph.
$$
RIZ002-220800-
Southeast Providence RI-
Including the city of Providence
409 PM EDT Fri Aug 21 2026
Tonight Sat Sat Night Sun
Cloud Cover Mcldy Mcldy Mcldy Mcldy
Precip Type Showers Showers Showers Tstms
Chance Precip (%) 20 30 40 60
Chance of Thunder (%) 0 0 0 20
Temp (24h trend) 60 (-3) 73 (0) 61 79
RH % (24h trend) 100 (0) 84 (+31) 100 79
20ft Wnd AM(mph) N 5 Lgt/Var
20ft Wnd PM(mph) NE 5 Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.00 0.02 0.04 0.18
Precip Duration 2 1 3
Precip Begin 6 AM Continuing Continuing
Precip End Continuing Continuing 6 PM
Mixing Hgt (ft-AGL) 440 2460 430 2180
Transport Wnd (kts) N 8 NE 10 NE 4 SE 10
Vent Rate (kt-ft) 3520 24600 1720 21800
Max ADI Early 20 Gen Poor 1 Very Poor 10 Poor 14 Gen Poor
Max ADI Late 8 Poor 1 Very Poor 3 Very Poor 1 Very Poor
Max LVORI Early 9 8 10 7
Max LVORI Late 9 8 10 7
Min Vsby Early 10 10 8 4 Fog
Min Vsby Late 10 8 8 9
Sunshine Hours N/A N/A N/A N/A
CWR 10 20 40 50
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY NIGHT...Mostly cloudy. Lows in the lower 60s. Southwest
winds around 5 mph.
.MONDAY...Sunny. Highs around 80. Southwest winds 5 to 10 mph.
.MONDAY NIGHT...Clear. Lows in the upper 50s. Southwest winds
5 to 10 mph.
.TUESDAY THROUGH WEDNESDAY...Mostly clear. Lows in the upper 50s.
Highs around 80. Southwest winds 5 to 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the lower 60s.
Southwest winds around 5 mph.
.THURSDAY THROUGH FRIDAY...Mostly cloudy with a chance of
showers. Lows in the mid 60s. Highs in the lower 80s. Southwest
winds 5 to 10 mph.
$$
RIZ003-220800-
Western Kent RI-
Including the cities of Coventry and West Greenwich
409 PM EDT Fri Aug 21 2026
Tonight Sat Sat Night Sun
Cloud Cover Mcldy Mcldy Mcldy Mcldy
Precip Type Showers Showers Showers Tstms
Chance Precip (%) 20 30 40 50
Chance of Thunder (%) 0 0 0 20
Temp (24h trend) 60 (-1) 73 (+1) 61 77
RH % (24h trend) 100 (0) 87 (+29) 100 79
20ft Wnd AM(mph) NE 6 Lgt/Var
20ft Wnd PM(mph) NE 5 Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.00 0.01 0.05 0.09
Precip Duration 1 1 2
Precip Begin 8 AM Continuing Continuing
Precip End Continuing Continuing 6 PM
Mixing Hgt (ft-AGL) 440 2370 430 2210
Transport Wnd (kts) N 8 NE 9 E 5 SE 10
Vent Rate (kt-ft) 3520 21330 2150 22100
Max ADI Early 18 Gen Poor 1 Very Poor 12 Poor 15 Gen Poor
Max ADI Late 8 Poor 18 Gen Poor 3 Very Poor 1 Very Poor
Max LVORI Early 9 8 10 8
Max LVORI Late 9 8 10 8
Min Vsby Early 10 10 10 5 Fog
Min Vsby Late 10 10 6 Fog 7
Sunshine Hours N/A N/A N/A N/A
CWR 10 10 40 50
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY NIGHT...Mostly cloudy. Lows in the lower 60s. Southwest
winds around 5 mph.
.MONDAY...Sunny. Highs in the upper 70s. Southwest winds 5 to
10 mph.
.MONDAY NIGHT...Clear. Lows in the upper 50s. Southwest winds
around 5 mph.
.TUESDAY THROUGH WEDNESDAY...Mostly clear. Lows in the upper 50s.
Highs in the upper 70s. Southwest winds 5 to 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the lower 60s.
Southwest winds around 5 mph.
.THURSDAY THROUGH FRIDAY...Mostly cloudy with a chance of
showers. Lows in the lower 60s. Highs in the upper 70s. Southwest
winds 5 to 10 mph.
$$
RIZ004-220800-
Eastern Kent RI-
Including the cities of East Greenwich, Warwick, and West Warwick
409 PM EDT Fri Aug 21 2026
Tonight Sat Sat Night Sun
Cloud Cover Mcldy Mcldy Mcldy Mcldy
Precip Type Showers Showers Showers Tstms
Chance Precip (%) 20 30 40 60
Chance of Thunder (%) 0 0 0 20
Temp (24h trend) 61 (-2) 73 (0) 62 78
RH % (24h trend) 100 (0) 84 (+28) 100 77
20ft Wnd AM(mph) N 7 Lgt/Var
20ft Wnd PM(mph) NE 6 NE 5 Lgt/Var S 5
Precip Amount 0.01 0.00 0.04 0.28
Precip Duration 1 1 2
Precip Begin 6 PM 6 PM Continuing
Precip End 6 AM Continuing 6 PM
Mixing Hgt (ft-AGL) 470 2310 430 2250
Transport Wnd (kts) N 9 NE 10 E 5 SE 10
Vent Rate (kt-ft) 4230 23100 2150 22500
Max ADI Early 20 Gen Poor 1 Very Poor 3 Very Poor 8 Poor
Max ADI Late 10 Poor 1 Very Poor 3 Very Poor 1 Very Poor
Max LVORI Early 8 7 10 7
Max LVORI Late 8 7 10 7
Min Vsby Early 10 10 10 5 Fog
Min Vsby Late 10 10 10 9
Sunshine Hours N/A N/A N/A N/A
CWR 10 10 40 50
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY NIGHT...Mostly cloudy. Lows in the mid 60s. Southwest
winds 5 to 10 mph.
.MONDAY...Sunny. Highs in the upper 70s. Southwest winds 5 to
10 mph.
.MONDAY NIGHT...Clear. Lows in the upper 50s. Southwest winds
5 to 10 mph.
.TUESDAY THROUGH WEDNESDAY...Mostly clear. Lows in the upper 50s.
Highs in the upper 70s. Southwest winds 5 to 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the lower 60s.
Southwest winds 5 to 10 mph.
.THURSDAY THROUGH FRIDAY...Mostly cloudy with a chance of
showers. Lows in the mid 60s. Highs around 80. Southwest winds
5 to 10 mph.
$$
RIZ005-220800-
Bristol RI-
Including the city of Bristol
409 PM EDT Fri Aug 21 2026
Tonight Sat Sat Night Sun
Cloud Cover Mcldy Mcldy Mcldy Mcldy
Precip Type Showers Showers Showers Tstms
Chance Precip (%) 30 30 40 60
Chance of Thunder (%) 0 0 0 20
Temp (24h trend) 62 (-3) 73 (0) 63 77
RH % (24h trend) 100 (0) 90 (+28) 100 85
20ft Wnd AM(mph) NE 7 Lgt/Var
20ft Wnd PM(mph) NE 7 NE 5 Lgt/Var S 6
Precip Amount 0.00 0.00 0.05 0.31
Precip Duration 1 2
Precip Begin 6 PM Continuing
Precip End Continuing 5 PM
Mixing Hgt (ft-AGL) 460 2230 430 2180
Transport Wnd (kts) N 10 NE 11 E 6 SE 11
Vent Rate (kt-ft) 4600 24530 2580 23980
Max ADI Early 17 Gen Poor 1 Very Poor 5 Very Poor 8 Poor
Max ADI Late 11 Poor 1 Very Poor 3 Very Poor 1 Very Poor
Max LVORI Early 7 8 10 8
Max LVORI Late 7 8 10 8
Min Vsby Early 10 10 10 5 Fog
Min Vsby Late 10 10 6 Fog 9
Sunshine Hours N/A N/A N/A N/A
CWR 10 10 40 60
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY NIGHT...Mostly cloudy. Lows in the mid 60s. Southwest
winds 5 to 10 mph.
.MONDAY...Sunny. Highs in the upper 70s. Southwest winds 5 to
10 mph.
.MONDAY NIGHT AND TUESDAY...Clear. Lows in the lower 60s. Highs
in the upper 70s. West winds 5 to 10 mph.
.TUESDAY NIGHT AND WEDNESDAY...Mostly clear. Lows in the lower
60s. Highs around 80. Southwest winds 5 to 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the mid 60s. Southwest
winds 5 to 10 mph.
.THURSDAY THROUGH FRIDAY...Mostly cloudy with a chance of
showers. Lows in the mid 60s. Highs around 80. Southwest winds
5 to 10 mph.
$$
RIZ006-220800-
Washington RI-
Including the cities of Narragansett and Westerly
409 PM EDT Fri Aug 21 2026
Tonight Sat Sat Night Sun
Cloud Cover Mcldy Mcldy Mcldy Mcldy
Precip Type Showers Showers Showers Tstms
Chance Precip (%) 20 30 40 60
Chance of Thunder (%) 0 0 0 20
Temp (24h trend) 60 (-4) 73 (0) 62 77
RH % (24h trend) 100 (0) 84 (+22) 100 77
20ft Wnd AM(mph) NE 7 Lgt/Var
20ft Wnd PM(mph) NE 7 G17 Lgt/Var Lgt/Var S 6
Precip Amount 0.00 0.00 0.07 0.18
Precip Duration 1 2
Precip Begin 6 PM Continuing
Precip End Continuing 4 PM
Mixing Hgt (ft-AGL) 430 2400 430 2260
Transport Wnd (kts) NE 11 NE 8 NE 5 S 10
Vent Rate (kt-ft) 4730 19200 2150 22600
Max ADI Early 20 Gen Poor 23 Fair 12 Poor 8 Poor
Max ADI Late 10 Poor 21 Fair 4 Very Poor 8 Poor
Max LVORI Early 8 5 10 8
Max LVORI Late 8 5 10 8
Min Vsby Early 10 10 10 5 Fog
Min Vsby Late 10 10 5 Fog 9
Sunshine Hours N/A N/A N/A N/A
CWR 10 10 30 30
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY NIGHT...Mostly cloudy. Lows in the mid 60s. Southwest
winds 5 to 10 mph.
.MONDAY...Sunny. Highs in the upper 70s. Southwest winds 10 to
15 mph.
.MONDAY NIGHT AND TUESDAY...Clear. Lows in the upper 50s. Highs
in the mid 70s. West winds 10 to 15 mph.
.TUESDAY NIGHT...Mostly clear. Lows in the upper 50s. West winds
5 to 10 mph.
.WEDNESDAY...Sunny. Highs in the upper 70s. Southwest winds 5 to
10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the lower 60s.
Southwest winds 5 to 10 mph.
.THURSDAY THROUGH FRIDAY...Mostly cloudy with a chance of
showers. Lows in the mid 60s. Highs in the upper 70s. Southwest
winds 5 to 10 mph.
$$
RIZ007-220800-
Newport RI-
Including the city of Newport
409 PM EDT Fri Aug 21 2026
Tonight Sat Sat Night Sun
Cloud Cover Mcldy Mcldy Mcldy Mcldy
Precip Type Showers Showers Showers Tstms
Chance Precip (%) 30 30 40 60
Chance of Thunder (%) 0 0 0 20
Temp (24h trend) 63 (-3) 73 (+1) 64 78
RH % (24h trend) 100 (0) 84 (+28) 100 82
20ft Wnd AM(mph) N 8 Lgt/Var
20ft Wnd PM(mph) NE 9 NE 6 Lgt/Var S 7
Precip Amount 0.02 0.00 0.08 0.17
Precip Duration 2 1 2
Precip Begin 6 PM 6 PM Continuing
Precip End 6 AM Continuing 2 PM
Mixing Hgt (ft-AGL) 590 2040 430 2010
Transport Wnd (kts) NE 12 NE 10 E 6 S 10
Vent Rate (kt-ft) 7080 20400 2580 20100
Max ADI Early 13 Gen Poor 3 Very Poor 14 Gen Poor 1 Very Poor
Max ADI Late 12 Poor 21 Fair 5 Very Poor 1 Very Poor
Max LVORI Early 6 5 10 8
Max LVORI Late 6 5 10 8
Min Vsby Early 10 10 10 4 Fog
Min Vsby Late 10 10 4 Fog 9
Sunshine Hours N/A N/A N/A N/A
CWR 20 10 30 40
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY NIGHT...Mostly cloudy. Lows in the upper 60s. Southwest
winds 5 to 10 mph.
.MONDAY...Sunny. Highs in the upper 70s. Southwest winds 10 to
15 mph.
.MONDAY NIGHT AND TUESDAY...Clear. Lows in the lower 60s. Highs
in the mid 70s. Southwest winds 10 to 15 mph.
.TUESDAY NIGHT...Mostly clear. Lows in the lower 60s. West winds
10 to 15 mph, diminishing to around 5 mph after midnight.
.WEDNESDAY...Sunny. Highs in the upper 70s. West winds around
5 mph, becoming southwest 10 to 15 mph in the afternoon.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the mid 60s. Southwest
winds 5 to 10 mph.
.THURSDAY THROUGH FRIDAY...Mostly cloudy with a chance of
showers. Lows in the upper 60s. Highs in the upper 70s. Southwest
winds 5 to 10 mph.
$$
RIZ008-220800-
Block Island RI-
Including the city of New Shoreham
409 PM EDT Fri Aug 21 2026
Tonight Sat Sat Night Sun
Cloud Cover Mcldy Mcldy Mcldy Mcldy
Precip Type Showers Showers Tstms Tstms
Chance Precip (%) 30 30 50 70
Chance of Thunder (%) 0 0 20 20
Temp (24h trend) 66 (+1) 74 (+2) 68 76
RH % (24h trend) 100 (0) 82 (+3) 100 85
20ft Wnd AM(mph) NE 10 E 7
20ft Wnd PM(mph) NE 12 G19 NE 6 Lgt/Var S 7
Precip Amount 0.02 0.00 0.10 0.15
Precip Duration 1 1 2
Precip Begin 6 PM 6 PM Continuing
Precip End 2 AM Continuing 2 PM
Mixing Hgt (ft-AGL) 1300 1770 1120 1360
Transport Wnd (kts) NE 17 NE 15 E 8 SE 10
Vent Rate (kt-ft) 22100 26550 8960 13600
Max ADI Early 25 Fair 25 Fair 10 Poor 22 Fair
Max ADI Late 20 Gen Poor 18 Gen Poor 8 Poor 18 Gen Poor
Max LVORI Early 5 5 8 5
Max LVORI Late 5 5 8 5
Min Vsby Early 10 10 10 5 Fog
Min Vsby Late 10 10 6 Fog 9
Sunshine Hours N/A N/A N/A N/A
CWR 10 10 30 40
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY NIGHT...Mostly cloudy. Lows in the upper 60s. Southwest
winds 5 to 10 mph.
.MONDAY...Sunny. Highs in the upper 70s. Southwest winds 5 to
10 mph.
.MONDAY NIGHT AND TUESDAY...Clear. Lows in the upper 60s. Highs
in the mid 70s. West winds 10 to 15 mph.
.TUESDAY NIGHT...Mostly clear. Lows in the upper 60s. West winds
5 to 10 mph.
.WEDNESDAY...Sunny. Highs in the mid 70s. Southwest winds 5 to
10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the upper 60s.
Southwest winds 5 to 10 mph.
.THURSDAY AND THURSDAY NIGHT...Mostly cloudy. A chance of
showers. Lows around 70. Highs in the mid 70s. Southwest winds
5 to 10 mph.
.FRIDAY...Mostly sunny with a chance of showers. Highs in the
upper 70s. Southwest winds 5 to 10 mph.
$$
MAZ017-220800-
Northern Bristol MA-
Including the city of Taunton
409 PM EDT Fri Aug 21 2026
Tonight Sat Sat Night Sun
Cloud Cover Mcldy Mcldy Mcldy Mcldy
Precip Type Showers Showers Showers Tstms
Chance Precip (%) 20 30 40 60
Chance of Thunder (%) 0 0 0 20
Temp (24h trend) 60 (-3) 73 (0) 60 79
RH % (24h trend) 100 (0) 87 (+34) 100 77
20ft Wnd AM(mph) NE 5 Lgt/Var
20ft Wnd PM(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.00 0.00 0.04 0.21
Precip Duration 1 3
Precip Begin 6 PM Continuing
Precip End Continuing 6 PM
Mixing Hgt (ft-AGL) 430 2290 420 2190
Transport Wnd (kts) NE 9 NE 11 E 5 SE 10
Vent Rate (kt-ft) 3870 25190 2100 21900
Max ADI Early 19 Gen Poor 1 Very Poor 10 Poor 15 Gen Poor
Max ADI Late 8 Poor 1 Very Poor 3 Very Poor 1 Very Poor
Max LVORI Early 9 8 10 7
Max LVORI Late 9 8 10 7
Min Vsby Early 10 10 8 3 Fog
Min Vsby Late 10 10 3 Fog 8
Sunshine Hours N/A N/A N/A N/A
CWR 10 10 40 50
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY NIGHT...Mostly cloudy. Lows in the lower 60s. Southwest
winds around 5 mph.
.MONDAY THROUGH WEDNESDAY...Mostly clear. Lows 57 to 63. Highs
around 80. Southwest winds 5 to 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the lower 60s.
Southwest winds around 5 mph.
.THURSDAY THROUGH FRIDAY...Mostly cloudy with a chance of
showers. Lows in the lower 60s. Highs in the lower 80s. Southwest
winds 5 to 10 mph.
$$
MAZ018-220800-
Western Plymouth MA-
Including the city of Brockton
409 PM EDT Fri Aug 21 2026
Tonight Sat Sat Night Sun
Cloud Cover Mcldy Mcldy Mcldy Mcldy
Precip Type Showers Showers Showers Tstms
Chance Precip (%) 30 30 40 60
Chance of Thunder (%) 0 0 0 20
Temp (24h trend) 60 (-4) 73 (+1) 60 79
RH % (24h trend) 100 (0) 87 (+34) 100 77
20ft Wnd AM(mph) NE 6 Lgt/Var
20ft Wnd PM(mph) Lgt/Var NE 5 Lgt/Var Lgt/Var
Precip Amount 0.01 0.00 0.09 0.28
Precip Duration 2 1 3
Precip Begin 6 PM 6 PM Continuing
Precip End 6 AM Continuing 5 PM
Mixing Hgt (ft-AGL) 420 2020 410 2310
Transport Wnd (kts) NE 10 NE 12 NE 3 S 10
Vent Rate (kt-ft) 4200 24240 1230 23100
Max ADI Early 8 Poor 1 Very Poor 11 Poor 13 Gen Poor
Max ADI Late 8 Poor 1 Very Poor 3 Very Poor 1 Very Poor
Max LVORI Early 9 9 10 8
Max LVORI Late 9 9 10 8
Min Vsby Early 10 10 7 3 Fog
Min Vsby Late 10 10 3 Fog 9
Sunshine Hours N/A N/A N/A N/A
CWR 10 10 40 50
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY NIGHT...Mostly cloudy. Lows in the mid 60s. Southwest
winds around 5 mph.
.MONDAY THROUGH WEDNESDAY...Mostly clear. Lows 57 to 64. Highs
around 80. Southwest winds 5 to 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the lower 60s.
Southwest winds around 5 mph.
.THURSDAY THROUGH FRIDAY...Mostly cloudy with a chance of
showers. Lows in the lower 60s. Highs in the lower 80s. Southwest
winds 5 to 10 mph.
$$
MAZ019-220800-
Eastern Plymouth MA-
Including the city of Plymouth
409 PM EDT Fri Aug 21 2026
Tonight Sat Sat Night Sun
Cloud Cover Mcldy Mcldy Mcldy Mcldy
Precip Type Showers Showers Showers Tstms
Chance Precip (%) 30 40 40 60
Chance of Thunder (%) 0 0 0 20
Temp (24h trend) 61 (-4) 72 (+2) 61 78
RH % (24h trend) 100 (0) 84 (+28) 100 74
20ft Wnd AM(mph) NE 8 Lgt/Var
20ft Wnd PM(mph) NE 5 NE 7 Lgt/Var SE 5
Precip Amount 0.02 0.01 0.08 0.19
Precip Duration 2 2 1 2
Precip Begin 6 PM Continuing Continuing Continuing
Precip End Continuing Continuing Continuing 6 PM
Mixing Hgt (ft-AGL) 570 1610 540 1980
Transport Wnd (kts) NE 11 NE 13 N 4 S 9
Vent Rate (kt-ft) 6270 20930 2160 17820
Max ADI Early 9 Poor 1 Very Poor 4 Very Poor 11 Poor
Max ADI Late 12 Poor 1 Very Poor 3 Very Poor 1 Very Poor
Max LVORI Early 7 9 10 8
Max LVORI Late 7 9 10 8
Min Vsby Early 10 10 6 Fog 3 Fog
Min Vsby Late 10 10 3 Fog 9
Sunshine Hours N/A N/A N/A N/A
CWR 10 10 40 50
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY NIGHT...Mostly cloudy. Lows in the mid 60s. Southwest
winds 5 to 10 mph.
.MONDAY THROUGH WEDNESDAY...Mostly clear. Lows 60 to 66. Highs
around 80. Southwest winds 5 to 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the mid 60s. Southwest
winds 5 to 10 mph.
.THURSDAY THROUGH FRIDAY...Mostly cloudy with a chance of
showers. Lows in the mid 60s. Highs around 80. South winds 5 to
10 mph.
$$
MAZ020-220800-
Southern Bristol MA-
Including the cities of Fall River and New Bedford
409 PM EDT Fri Aug 21 2026
Tonight Sat Sat Night Sun
Cloud Cover Mcldy Mcldy Mcldy Mcldy
Precip Type Showers Showers Showers Tstms
Chance Precip (%) 30 30 40 60
Chance of Thunder (%) 0 0 0 20
Temp (24h trend) 61 (-4) 74 (+2) 61 79
RH % (24h trend) 100 (0) 84 (+30) 100 82
20ft Wnd AM(mph) NE 7 Lgt/Var
20ft Wnd PM(mph) NE 7 G17 NE 6 Lgt/Var S 6
Precip Amount 0.03 0.01 0.09 0.26
Precip Duration 2 2 1 2
Precip Begin 6 PM Continuing Continuing Continuing
Precip End Continuing Continuing Continuing 2 PM
Mixing Hgt (ft-AGL) 420 2130 410 2320
Transport Wnd (kts) N 11 NE 11 NE 4 S 11
Vent Rate (kt-ft) 4620 23430 1640 25520
Max ADI Early 20 Gen Poor 1 Very Poor 10 Poor 15 Gen Poor
Max ADI Late 11 Poor 1 Very Poor 3 Very Poor 1 Very Poor
Max LVORI Early 8 8 10 7
Max LVORI Late 8 8 10 7
Min Vsby Early 10 10 10 3 Fog
Min Vsby Late 10 10 3 Fog 9
Sunshine Hours N/A N/A N/A N/A
CWR 20 10 40 50
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY NIGHT...Mostly cloudy. Lows in the mid 60s. Southwest
winds 5 to 10 mph.
.MONDAY...Sunny. Highs in the upper 70s. Southwest winds 10 to
15 mph.
.MONDAY NIGHT AND TUESDAY...Clear. Lows around 60. Highs in the
upper 70s. Southwest winds 10 to 15 mph.
.TUESDAY NIGHT AND WEDNESDAY...Mostly clear. Lows in the lower
60s. Highs in the upper 70s. Southwest winds 10 to 15 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the mid 60s. Southwest
winds 10 to 15 mph, diminishing to around 5 mph after midnight.
.THURSDAY THROUGH FRIDAY...Mostly cloudy with a chance of
showers. Lows in the mid 60s. Highs in the upper 70s. Southwest
winds 5 to 10 mph.
$$
MAZ021-220800-
Southern Plymouth MA-
Including the city of Mattapoisett
409 PM EDT Fri Aug 21 2026
Tonight Sat Sat Night Sun
Cloud Cover Mcldy Mcldy Mcldy Mcldy
Precip Type Showers Showers Showers Tstms
Chance Precip (%) 40 30 40 60
Chance of Thunder (%) 0 0 0 20
Temp (24h trend) 61 (-5) 74 (+2) 62 79
RH % (24h trend) 100 (0) 87 (+31) 100 79
20ft Wnd AM(mph) NE 7 Lgt/Var
20ft Wnd PM(mph) NE 6 NE 5 Lgt/Var S 6
Precip Amount 0.04 0.01 0.08 0.31
Precip Duration 2 2 1 2
Precip Begin 6 PM Continuing Continuing Continuing
Precip End Continuing Continuing Continuing 4 PM
Mixing Hgt (ft-AGL) 420 1950 430 2330
Transport Wnd (kts) NE 11 N 12 NE 5 S 10
Vent Rate (kt-ft) 4620 23400 2150 23300
Max ADI Early 22 Fair 1 Very Poor 10 Poor 16 Gen Poor
Max ADI Late 12 Poor 1 Very Poor 3 Very Poor 25 Fair
Max LVORI Early 8 8 10 7
Max LVORI Late 8 8 10 7
Min Vsby Early 9 10 10 3 Fog
Min Vsby Late 10 10 3 Fog 9
Sunshine Hours N/A N/A N/A N/A
CWR 20 10 40 60
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY NIGHT...Mostly cloudy. Lows in the mid 60s. Southwest
winds 5 to 10 mph.
.MONDAY AND MONDAY NIGHT...Mostly clear. Lows 61 to 66. Highs
around 80. West winds 10 to 15 mph.
.TUESDAY...Sunny. Highs in the upper 70s. West winds 10 to
15 mph.
.TUESDAY NIGHT AND WEDNESDAY...Mostly clear. Lows in the lower
60s. Highs around 80. Southwest winds 10 to 15 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the mid 60s. Southwest
winds 5 to 10 mph.
.THURSDAY THROUGH FRIDAY...Mostly cloudy with a chance of
showers. Lows in the mid 60s. Highs around 80. Southwest winds
5 to 10 mph.
$$
MAZ022-220800-
Barnstable MA-
Including the cities of Chatham, Falmouth, and Provincetown
409 PM EDT Fri Aug 21 2026
Tonight Sat Sat Night Sun
Cloud Cover Cloudy Mcldy Mcldy Mcldy
Precip Type Showers Showers Showers Tstms
Chance Precip (%) 50 30 40 70
Chance of Thunder (%) 0 0 0 20
Temp (24h trend) 63 (-3) 74 (+3) 65 78
RH % (24h trend) 100 (0) 84 (+22) 100 77
20ft Wnd AM(mph) NE 8 Lgt/Var
20ft Wnd PM(mph) NE 7 N 6 Lgt/Var S 7
Precip Amount 0.07 0.01 0.11 0.30
Precip Duration 2 2 1 4
Precip Begin 6 PM Continuing Continuing Continuing
Precip End Continuing Continuing Continuing 5 PM
Mixing Hgt (ft-AGL) 610 1650 620 2150
Transport Wnd (kts) NE 15 NE 12 W 4 SW 13
Vent Rate (kt-ft) 9150 19800 2480 27950
Max ADI Early 25 Fair 1 Very Poor 5 Very Poor 10 Poor
Max ADI Late 16 Gen Poor 1 Very Poor 4 Very Poor 1 Very Poor
Max LVORI Early 6 9 10 8
Max LVORI Late 6 9 10 8
Min Vsby Early 7 10 3 Fog 3 Fog
Min Vsby Late 10 10 3 Fog 9
Sunshine Hours N/A N/A N/A N/A
CWR 30 10 40 60
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY NIGHT...Mostly cloudy. Lows in the upper 60s. Southwest
winds 5 to 10 mph.
.MONDAY AND MONDAY NIGHT...Mostly clear. Lows in the upper 60s.
Highs in the upper 70s. West winds 10 to 15 mph.
.TUESDAY...Sunny. Highs in the upper 70s. West winds 10 to
15 mph.
.TUESDAY NIGHT AND WEDNESDAY...Mostly clear. Lows in the mid 60s.
Highs in the upper 70s. Southwest winds 10 to 15 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the upper 60s.
Southwest winds 5 to 10 mph.
.THURSDAY THROUGH FRIDAY...Mostly cloudy with a chance of
showers. Lows in the upper 60s. Highs in the upper 70s. Southwest
winds 5 to 10 mph.
$$
MAZ023-220800-
Dukes MA-
Including the city of Vineyard Haven
409 PM EDT Fri Aug 21 2026
Tonight Sat Sat Night Sun
Cloud Cover Mcldy Mcldy Mcldy Mcldy
Precip Type Showers Showers Showers Tstms
Chance Precip (%) 50 30 50 70
Chance of Thunder (%) 0 0 0 20
Temp (24h trend) 63 (-5) 76 (+4) 64 78
RH % (24h trend) 100 (0) 82 (+13) 100 79
20ft Wnd AM(mph) NE 10 SE 5
20ft Wnd PM(mph) NE 11 G19 N 7 Lgt/Var S 7
Precip Amount 0.04 0.00 0.20 0.38
Precip Duration 2 2 3
Precip Begin 6 PM 6 PM Continuing
Precip End 6 AM Continuing 5 PM
Mixing Hgt (ft-AGL) 1320 1840 800 1790
Transport Wnd (kts) NE 20 N 9 SE 8 S 13
Vent Rate (kt-ft) 26400 16560 6400 23270
Max ADI Early 26 Fair 1 Very Poor 15 Gen Poor 1 Very Poor
Max ADI Late 24 Fair 21 Fair 6 Very Poor 26 Fair
Max LVORI Early 5 5 10 7
Max LVORI Late 5 5 10 7
Min Vsby Early 7 10 10 3 Fog
Min Vsby Late 10 10 5 Fog 9
Sunshine Hours N/A N/A N/A N/A
CWR 30 10 40 60
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY NIGHT...Mostly cloudy. Lows in the upper 60s. Southwest
winds 5 to 10 mph.
.MONDAY AND MONDAY NIGHT...Mostly clear. Lows in the upper 60s.
Highs in the upper 70s. West winds 10 to 15 mph.
.TUESDAY...Sunny. Highs in the mid 70s. West winds 15 to 20 mph.
.TUESDAY NIGHT AND WEDNESDAY...Mostly clear. Lows in the mid 60s.
Highs in the upper 70s. Southwest winds 10 to 15 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the upper 60s.
Southwest winds 10 to 15 mph.
.THURSDAY THROUGH FRIDAY...Mostly cloudy with a chance of
showers. Lows in the upper 60s. Highs in the upper 70s. Southwest
winds 5 to 10 mph.
$$
MAZ024-220800-
Nantucket MA-
Including the city of Nantucket
409 PM EDT Fri Aug 21 2026
Tonight Sat Sat Night Sun
Cloud Cover Cloudy Mcldy Mcldy Mcldy
Precip Type Showers Showers Tstms Tstms
Chance Precip (%) 60 20 60 80
Chance of Thunder (%) 0 0 20 20
Temp (24h trend) 64 (-4) 75 (+3) 65 76
RH % (24h trend) 100 (0) 82 (0) 100 82
20ft Wnd AM(mph) NE 10 SE 7
20ft Wnd PM(mph) NE 11 G18 N 7 Lgt/Var S 8
Precip Amount 0.08 0.02 0.13 0.26
Precip Duration 3 1 2 6
Precip Begin 6 PM Continuing Continuing Continuing
Precip End Continuing Continuing Continuing Continuing
Mixing Hgt (ft-AGL) 1150 1520 830 1180
Transport Wnd (kts) NE 19 NW 9 SE 6 S 12
Vent Rate (kt-ft) 21850 13680 4980 14160
Max ADI Early 30 Fair 16 Gen Poor 12 Poor 1 Very Poor
Max ADI Late 28 Fair 17 Gen Poor 6 Very Poor 20 Gen Poor
Max LVORI Early 5 5 9 7
Max LVORI Late 5 5 9 7
Min Vsby Early 7 10 5 Fog 3 Fog
Min Vsby Late 10 10 3 Fog 6 Fog
Sunshine Hours N/A N/A N/A N/A
CWR 30 10 50 60
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY NIGHT...Mostly cloudy with a chance of showers. Lows in
the upper 60s. Southwest winds 5 to 10 mph.
.MONDAY AND MONDAY NIGHT...Mostly clear. Lows in the upper 60s.
Highs in the mid 70s. Southwest winds 10 to 15 mph.
.TUESDAY...Sunny. Highs in the mid 70s. West winds 10 to 15 mph.
.TUESDAY NIGHT AND WEDNESDAY...Mostly clear. Lows in the upper
60s. Highs in the mid 70s. Southwest winds 10 to 15 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the upper 60s.
Southwest winds 10 to 15 mph.
.THURSDAY THROUGH FRIDAY...Mostly cloudy with a chance of
showers. Lows in the upper 60s. Highs in the upper 70s. Southwest
winds 5 to 10 mph.
$$
.OUTLOOK 8 TO 14 DAYS...
Temperatures above normal. Precipitation above normal.
$$
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