Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Boston, MA
Issued by NWS Boston, MA
194
FNUS51 KBOX 172007
FWFBOX
Fire Weather Planning Forecast for Southern New England
National Weather Service Boston/Norton MA
407 PM EDT Thu Sep 17 2026
.DISCUSSION...
Shower chances this afternoon and overnight. A cold front moves
off shore tomorrow and high pressure build in from the WNW
tomorrow with drier conditions and lowering dew points. High
pressure provides dry and fall-like conditions into Saturday.
Minimum values of relative humidity tomorrow are 50 percent,
though the exception of 60-70 percent for Cape Cod and Islands.
Saturday those values are lowering, 35-50 percent for most and
45-60 percent for Cape Cod and Islands.
.Outlook...Sunday through Tuesday...
Showers return on Sunday, which could be heavy at times, possibly
lingering through early next week.
MAZ015-180800-
Suffolk MA-
Including the city of Boston
407 PM EDT Thu Sep 17 2026
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mclear Mclear Mclear
Precip Type Tstms None None None
Chance Precip (%) 50 10
Chance of Thunder (%) 20 0 0 0
Temp (24h trend) 66 (+3) 77 (+1) 48 64
RH % (24h trend) 100 (+3) 44 (-10) 83 48
20ft Wnd AM(mph) NW 7 NE 5
20ft Wnd PM(mph) S 5 NW 8 N 7 E 5
Precip Amount 0.33 0.00 0.00 0.00
Precip Duration 2
Precip Begin 6 PM
Precip End 6 AM
Mixing Hgt (ft-AGL) 430 5070 500 3850
Transport Wnd (kts) S 10 NW 13 N 9 NE 7
Vent Rate (kt-ft) 4300 65910 4500 26950
Max ADI Early 11 Poor 36 Fair 17 Gen Poor 37 Fair
Max ADI Late 8 Poor 40 Fair 8 Poor 35 Fair
Max LVORI Early 8 2 3 2
Max LVORI Late 8 2 3 2
Min Vsby Early 7 3 Fog 10 10
Min Vsby Late 3 Fog 10 10 10
Sunshine Hours N/A N/A N/A N/A
CWR 50 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Partly cloudy. Lows in the lower 50s. Southeast
winds 5 to 10 mph.
.SUNDAY...Mostly cloudy with showers likely. Highs in the mid
60s. Southeast winds 5 to 10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely. Lows in the
mid 50s. Southeast winds 5 to 10 mph, becoming northeast after
midnight.
.MONDAY...Partly sunny with a chance of showers. Highs in the mid
60s. Northeast winds 5 to 10 mph.
.MONDAY NIGHT AND TUESDAY...Mostly cloudy. Lows in the lower 50s.
Highs in the upper 50s. Northeast winds 10 to 15 mph.
.TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Partly cloudy. Lows in
the lower 50s. Highs around 60. Northeast winds 15 to 20 mph.
.THURSDAY...Partly sunny with a chance of showers. Highs in the
lower 60s. Northeast winds 15 to 20 mph.
$$
MAZ016-180800-
Eastern Norfolk MA-
Including the city of Quincy
407 PM EDT Thu Sep 17 2026
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mclear Mclear Mclear
Precip Type Tstms None None None
Chance Precip (%) 60 20
Chance of Thunder (%) 20 0 0 0
Temp (24h trend) 65 (+3) 77 (-1) 48 64
RH % (24h trend) 100 (0) 44 (-20) 80 50
20ft Wnd AM(mph) NW 7 NE 5
20ft Wnd PM(mph) S 6 N 8 N 7 E 5
Precip Amount 0.22 0.00 0.00 0.00
Precip Duration 3
Precip Begin 6 PM
Precip End 6 AM
Mixing Hgt (ft-AGL) 430 5520 470 3680
Transport Wnd (kts) S 10 N 13 N 9 NE 8
Vent Rate (kt-ft) 4300 71760 4230 29440
Max ADI Early 12 Poor 40 Fair 26 Fair 44 Gen Good
Max ADI Late 12 Poor 46 Gen Good 8 Poor 41 Gen Good
Max LVORI Early 8 1 4 2
Max LVORI Late 8 1 4 2
Min Vsby Early 10 3 Fog 10 10
Min Vsby Late 5 Fog 10 10 10
Sunshine Hours N/A N/A N/A N/A
CWR 50 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Partly cloudy. Lows in the lower 50s. Southeast
winds around 5 mph.
.SUNDAY...Mostly cloudy with showers likely. Highs in the mid
60s. Southeast winds around 5 mph.
.SUNDAY NIGHT...Cloudy with showers likely. Lows in the mid 50s.
Southeast winds around 5 mph, becoming northeast after midnight.
.MONDAY...Partly sunny with a chance of showers. Highs in the mid
60s. Northeast winds 5 to 10 mph.
.MONDAY NIGHT AND TUESDAY...Mostly cloudy. Lows in the lower 50s.
Highs in the upper 50s. Northeast winds 10 to 15 mph.
.TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Partly cloudy. Lows in
the lower 50s. Highs in the lower 60s. Northeast winds 15 to
20 mph.
.THURSDAY...Partly sunny with a chance of showers. Highs in the
lower 60s. Northeast winds 15 to 20 mph.
$$
MAZ013-180800-
Western Norfolk MA-
Including the cities of Foxborough and Norwood
407 PM EDT Thu Sep 17 2026
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mclear Pcldy Mclear
Precip Type Tstms None None None
Chance Precip (%) 50 20
Chance of Thunder (%) 20 0 0 0
Temp (24h trend) 65 (+5) 77 (-1) 43 67
RH % (24h trend) 100 (0) 44 (-16) 93 45
20ft Wnd AM(mph) NW 6 Lgt/Var
20ft Wnd PM(mph) Lgt/Var N 7 N 5 Lgt/Var
Precip Amount 0.16 0.00 0.00 0.00
Precip Duration 2
Precip Begin 6 PM
Precip End 6 AM
Mixing Hgt (ft-AGL) 430 5840 420 4300
Transport Wnd (kts) SW 11 N 14 N 7 NE 5
Vent Rate (kt-ft) 4730 81760 2940 21500
Max ADI Early 9 Poor 43 Gen Good 42 Gen Good 39 Fair
Max ADI Late 9 Poor 53 Gen Good 7 Poor 38 Fair
Max LVORI Early 9 1 5 2
Max LVORI Late 9 1 5 2
Min Vsby Early 10 3 Fog 10 10
Min Vsby Late 4 Fog 10 10 10
Sunshine Hours N/A N/A N/A N/A
CWR 40 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Partly cloudy. Lows in the upper 40s. Southeast
winds around 5 mph.
.SUNDAY...Mostly cloudy with showers likely. Highs in the mid
60s. Southeast winds around 5 mph.
.SUNDAY NIGHT...Cloudy with showers likely. Lows in the lower
50s. East winds around 5 mph, becoming northeast after midnight.
.MONDAY...Mostly cloudy with a chance of showers. Highs in the
mid 60s. Northeast winds 5 to 10 mph.
.MONDAY NIGHT AND TUESDAY...Mostly cloudy. Lows around 50. Highs
in the upper 50s. Northeast winds 5 to 10 mph.
.TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Partly cloudy. Lows in
the upper 40s. Highs in the lower 60s. Northeast winds 10 to
15 mph.
.THURSDAY...Partly sunny with a chance of showers. Highs in the
lower 60s. Northeast winds 5 to 10 mph.
$$
MAZ014-180800-
Southeast Middlesex MA-
Including the city of Cambridge
407 PM EDT Thu Sep 17 2026
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mclear Pcldy Mclear
Precip Type Tstms None None None
Chance Precip (%) 60 10
Chance of Thunder (%) 20 0 0 0
Temp (24h trend) 65 (+3) 77 (-1) 45 65
RH % (24h trend) 100 (+3) 44 (-12) 89 46
20ft Wnd AM(mph) NW 6 Lgt/Var
20ft Wnd PM(mph) Lgt/Var NW 9 N 7 Lgt/Var
Precip Amount 0.37 0.00 0.00 0.00
Precip Duration 3
Precip Begin 6 PM
Precip End 6 AM
Mixing Hgt (ft-AGL) 450 6040 410 4130
Transport Wnd (kts) S 10 NW 16 N 8 NE 5
Vent Rate (kt-ft) 4500 96640 3280 20650
Max ADI Early 8 Poor 42 Gen Good 36 Fair 35 Fair
Max ADI Late 8 Poor 59 Gen Good 6 Very Poor 33 Fair
Max LVORI Early 9 1 4 2
Max LVORI Late 9 1 4 2
Min Vsby Early 5 Fog 3 Fog 10 10
Min Vsby Late 3 Fog 10 10 10
Sunshine Hours N/A N/A N/A N/A
CWR 50 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Partly cloudy. Lows in the lower 50s. Southeast
winds around 5 mph.
.SUNDAY...Mostly cloudy with showers likely. Highs in the mid
60s. Southeast winds around 5 mph.
.SUNDAY NIGHT...Cloudy with showers likely. Lows in the mid 50s.
East winds around 5 mph, becoming northeast after midnight.
.MONDAY...Partly sunny with a chance of showers. Highs in the mid
60s. Northeast winds 5 to 10 mph.
.MONDAY NIGHT AND TUESDAY...Mostly cloudy. Lows in the lower 50s.
Highs in the upper 50s. Northeast winds 5 to 10 mph.
.TUESDAY NIGHT THROUGH THURSDAY...Partly cloudy. Lows around 50.
Highs in the lower 60s. East winds 10 to 15 mph.
$$
MAZ007-180800-
Eastern Essex MA-
Including the city of Gloucester
407 PM EDT Thu Sep 17 2026
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mclear Pcldy Mclear
Precip Type Tstms None None None
Chance Precip (%) 60 10
Chance of Thunder (%) 20 0 0 0
Temp (24h trend) 64 (+2) 76 (+3) 45 63
RH % (24h trend) 100 (0) 43 (-15) 89 48
20ft Wnd AM(mph) NW 6 N 5
20ft Wnd PM(mph) Lgt/Var NW 8 NW 7 Lgt/Var
Precip Amount 0.38 0.00 0.00 0.00
Precip Duration 5
Precip Begin 6 PM
Precip End 6 AM
Mixing Hgt (ft-AGL) 410 4900 410 3810
Transport Wnd (kts) SE 7 NW 13 NW 12 NE 7
Vent Rate (kt-ft) 2870 63700 4920 26670
Max ADI Early 8 Poor 30 Fair 16 Gen Poor 37 Fair
Max ADI Late 8 Poor 33 Fair 9 Poor 34 Fair
Max LVORI Early 9 2 4 2
Max LVORI Late 9 2 4 2
Min Vsby Early 3 Fog 3 Fog 10 10
Min Vsby Late 3 Fog 10 10 10
Sunshine Hours N/A N/A N/A N/A
CWR 60 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Partly cloudy. Lows in the lower 50s. South
winds around 5 mph.
.SUNDAY...Mostly cloudy with showers likely. Highs in the mid
60s. Southeast winds 5 to 10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely. Lows in the
mid 50s. East winds around 5 mph, becoming northeast after
midnight.
.MONDAY...Partly sunny with a chance of showers. Highs in the mid
60s. Northeast winds 10 to 15 mph.
.MONDAY NIGHT AND TUESDAY...Mostly cloudy. Lows in the lower 50s.
Highs around 60. Northeast winds 10 to 15 mph.
.TUESDAY NIGHT...Partly cloudy. Lows in the lower 50s. Northeast
winds 10 to 15 mph.
.WEDNESDAY...Sunny. Highs in the lower 60s. Northeast winds 15 to
20 mph.
.WEDNESDAY NIGHT AND THURSDAY...Partly cloudy. Lows in the lower
50s. Highs in the lower 60s. Northeast winds 15 to 20 mph.
$$
MAZ006-180800-
Western Essex MA-
Including the city of Lawrence
407 PM EDT Thu Sep 17 2026
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mclear Pcldy Mclear
Precip Type Tstms None None None
Chance Precip (%) 60 10
Chance of Thunder (%) 20 0 0 0
Temp (24h trend) 63 (+2) 76 (0) 44 65
RH % (24h trend) 100 (0) 44 (-12) 89 42
20ft Wnd AM(mph) NW 5 Lgt/Var
20ft Wnd PM(mph) Lgt/Var NW 8 G17 NW 6 Lgt/Var
Precip Amount 0.37 0.00 0.00 0.00
Precip Duration 5
Precip Begin 6 PM
Precip End 5 AM
Mixing Hgt (ft-AGL) 410 6140 410 4090
Transport Wnd (kts) SE 5 NW 17 N 7 N 4
Vent Rate (kt-ft) 2050 104380 2870 16360
Max ADI Early 8 Poor 42 Gen Good 34 Fair 32 Fair
Max ADI Late 6 Very Poor 65 Good 6 Very Poor 29 Fair
Max LVORI Early 9 1 5 2
Max LVORI Late 9 1 5 2
Min Vsby Early 3 Fog 3 Fog 10 10
Min Vsby Late 3 Fog 10 10 10
Sunshine Hours N/A N/A N/A N/A
CWR 60 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Partly cloudy. Lows in the upper 40s. South
winds around 5 mph.
.SUNDAY...Mostly cloudy with showers likely. Highs in the lower
60s. Southeast winds around 5 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely. Lows in the
lower 50s. East winds around 5 mph, becoming north after
midnight.
.MONDAY AND MONDAY NIGHT...Mostly cloudy. Lows in the lower 50s.
Highs in the mid 60s. North winds 5 to 10 mph.
.TUESDAY...Partly sunny. Highs in the upper 50s. Northeast winds
5 to 10 mph.
.TUESDAY NIGHT THROUGH THURSDAY...Partly cloudy. Lows in the
upper 40s. Highs in the lower 60s. East winds 10 to 15 mph.
$$
MAZ005-180800-
Central Middlesex MA-
Including the cities of Framingham and Lowell
407 PM EDT Thu Sep 17 2026
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mclear Pcldy Mclear
Precip Type Tstms None None None
Chance Precip (%) 60 10
Chance of Thunder (%) 20 0 0 0
Temp (24h trend) 64 (+3) 76 (-1) 44 66
RH % (24h trend) 100 (0) 43 (-13) 93 42
20ft Wnd AM(mph) NW 5 Lgt/Var
20ft Wnd PM(mph) Lgt/Var NW 7 G17 N 5 Lgt/Var
Precip Amount 0.34 0.00 0.00 0.00
Precip Duration 4
Precip Begin 6 PM
Precip End 6 AM
Mixing Hgt (ft-AGL) 430 6010 410 4350
Transport Wnd (kts) SW 10 NW 16 N 7 S 5
Vent Rate (kt-ft) 4300 96160 2870 21750
Max ADI Early 8 Poor 47 Gen Good 38 Fair 30 Fair
Max ADI Late 8 Poor 61 Good 7 Poor 29 Fair
Max LVORI Early 9 1 5 2
Max LVORI Late 9 1 5 2
Min Vsby Early 5 Fog 3 Fog 10 10
Min Vsby Late 3 Fog 10 10 10
Sunshine Hours N/A N/A N/A N/A
CWR 60 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Partly cloudy. Lows in the upper 40s. South
winds around 5 mph.
.SUNDAY...Mostly cloudy with showers likely. Highs in the lower
60s. Southeast winds around 5 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely. Lows in the
lower 50s. East winds around 5 mph, becoming north after
midnight.
.MONDAY...Partly sunny with a chance of showers. Highs in the mid
60s. Northeast winds around 5 mph.
.MONDAY NIGHT AND TUESDAY...Mostly cloudy. Lows in the upper 40s.
Highs in the upper 50s. Northeast winds 5 to 10 mph.
.TUESDAY NIGHT THROUGH THURSDAY...Partly cloudy. Lows in the
upper 40s. Highs in the lower 60s. East winds 10 to 15 mph.
$$
MAZ012-180800-
Southern Worcester MA-
Including the cities of Milford and Worcester
407 PM EDT Thu Sep 17 2026
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mclear Pcldy Pcldy
Precip Type Tstms None None None
Chance Precip (%) 50 10
Chance of Thunder (%) 20 0 0 0
Temp (24h trend) 64 (+3) 76 (-1) 45 67
RH % (24h trend) 100 (0) 46 (-16) 83 42
20ft Wnd AM(mph) NW 6 Lgt/Var
20ft Wnd PM(mph) Lgt/Var NW 7 N 5 Lgt/Var
Precip Amount 0.16 0.00 0.00 0.00
Precip Duration 2
Precip Begin 6 PM
Precip End 6 AM
Mixing Hgt (ft-AGL) 430 5700 420 4300
Transport Wnd (kts) SW 10 N 14 N 7 SW 4
Vent Rate (kt-ft) 4300 79800 2940 17200
Max ADI Early 9 Poor 41 Gen Good 42 Gen Good 28 Fair
Max ADI Late 9 Poor 52 Gen Good 7 Poor 29 Fair
Max LVORI Early 9 1 5 2
Max LVORI Late 9 1 5 2
Min Vsby Early 9 4 Fog 10 10
Min Vsby Late 6 Fog 10 10 10
Sunshine Hours N/A N/A N/A N/A
CWR 40 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Partly cloudy. Lows in the upper 40s. South
winds around 5 mph.
.SUNDAY...Showers. Highs in the lower 60s. Southeast winds around
5 mph.
.SUNDAY NIGHT...Cloudy with showers likely. Lows in the lower
50s. East winds around 5 mph, becoming northeast after midnight.
.MONDAY...Partly sunny with a chance of showers. Highs in the mid
60s. Northeast winds 5 to 10 mph.
.MONDAY NIGHT AND TUESDAY...Mostly cloudy. Lows in the upper 40s.
Highs in the upper 50s. Northeast winds 5 to 10 mph.
.TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Partly cloudy. Lows in
the upper 40s. Highs around 60. Northeast winds 10 to 15 mph.
.THURSDAY...Partly sunny with a chance of showers. Highs in the
lower 60s. Northeast winds 5 to 10 mph.
$$
MAZ004-180800-
Northern Worcester MA-
Including the cities of Barre and Fitchburg
407 PM EDT Thu Sep 17 2026
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mclear Pcldy Mclear
Precip Type Tstms None None None
Chance Precip (%) 60 10
Chance of Thunder (%) 20 0 0 0
Temp (24h trend) 61 (+2) 74 (0) 41 65
RH % (24h trend) 100 (0) 46 (-12) 100 38
20ft Wnd AM(mph) NW 6 Lgt/Var
20ft Wnd PM(mph) Lgt/Var NW 8 G17 N 5 Lgt/Var
Precip Amount 0.31 0.00 0.00 0.00
Precip Duration 4
Precip Begin 6 PM
Precip End 5 AM
Mixing Hgt (ft-AGL) 430 5540 410 4340
Transport Wnd (kts) SW 8 NW 15 N 8 W 5
Vent Rate (kt-ft) 3440 83100 3280 21700
Max ADI Early 8 Poor 42 Gen Good 24 Fair 25 Fair
Max ADI Late 8 Poor 55 Gen Good 6 Very Poor 31 Fair
Max LVORI Early 9 1 6 2
Max LVORI Late 9 1 6 2
Min Vsby Early 5 Fog 2 Fog 10 10
Min Vsby Late 3 Fog 10 10 10
Sunshine Hours N/A N/A N/A N/A
CWR 50 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Partly cloudy. Lows in the upper 40s. South
winds around 5 mph.
.SUNDAY...Showers. Highs around 60. Southeast winds around 5 mph.
.SUNDAY NIGHT...Showers. Lows around 50. Northeast winds 5 to
10 mph.
.MONDAY AND MONDAY NIGHT...Mostly cloudy. Lows in the upper 40s.
Highs in the mid 60s. Northeast winds 5 to 10 mph.
.TUESDAY...Partly sunny. Highs in the upper 50s. Northeast winds
5 to 10 mph.
.TUESDAY NIGHT THROUGH THURSDAY...Partly cloudy. Lows in the mid
40s. Highs in the upper 50s. East winds 10 to 15 mph.
$$
MAZ026-180800-
Northern Middlesex MA-
Including the city of Ayer
407 PM EDT Thu Sep 17 2026
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mclear Pcldy Mclear
Precip Type Tstms None None None
Chance Precip (%) 60
Chance of Thunder (%) 20 0 0 0
Temp (24h trend) 62 (+2) 76 (0) 43 66
RH % (24h trend) 100 (0) 46 (-16) 89 42
20ft Wnd AM(mph) NW 5 Lgt/Var
20ft Wnd PM(mph) Lgt/Var NW 8 G17 NW 5 Lgt/Var
Precip Amount 0.35 0.00 0.00 0.00
Precip Duration 5
Precip Begin 6 PM
Precip End 4 AM
Mixing Hgt (ft-AGL) 430 6010 410 4270
Transport Wnd (kts) NW 8 NW 17 N 8 W 4
Vent Rate (kt-ft) 3440 102170 3280 17080
Max ADI Early 8 Poor 52 Gen Good 33 Fair 27 Fair
Max ADI Late 5 Very Poor 62 Good 5 Very Poor 33 Fair
Max LVORI Early 9 1 5 2
Max LVORI Late 9 1 5 2
Min Vsby Early 4 Fog 3 Fog 10 10
Min Vsby Late 4 Fog 10 10 10
Sunshine Hours N/A N/A N/A N/A
CWR 60 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Partly cloudy. Lows in the upper 40s. South
winds around 5 mph.
.SUNDAY...Mostly cloudy with showers likely. Highs in the lower
60s. Southeast winds around 5 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely. Lows around
50. Northeast winds around 5 mph.
.MONDAY AND MONDAY NIGHT...Mostly cloudy. Lows in the upper 40s.
Highs in the mid 60s. North winds around 5 mph.
.TUESDAY...Partly sunny. Highs in the upper 50s. Northeast winds
5 to 10 mph.
.TUESDAY NIGHT THROUGH THURSDAY...Partly cloudy. Lows in the mid
40s. Highs around 60. East winds 5 to 10 mph.
$$
MAZ002-180800-
Western Franklin MA-
Including the city of Charlemont
407 PM EDT Thu Sep 17 2026
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mclear Pcldy Mclear
Precip Type Tstms None None None
Chance Precip (%) 60
Chance of Thunder (%) 20 0 0 0
Temp (24h trend) 58 (-1) 73 (+1) 40 65
RH % (24h trend) 100 (0) 49 (-22) 96 38
20ft Wnd AM(mph) Lgt/Var Lgt/Var
20ft Wnd PM(mph) Lgt/Var NW 6 Lgt/Var Lgt/Var
Precip Amount 0.21 0.00 0.00 0.00
Precip Duration 3
Precip Begin 6 PM
Precip End 3 AM
Mixing Hgt (ft-AGL) 430 5490 420 4010
Transport Wnd (kts) W 6 NW 15 N 6 NW 5
Vent Rate (kt-ft) 2580 82350 2520 20050
Max ADI Early 7 Poor 67 Good 25 Fair 25 Fair
Max ADI Late 5 Very Poor 98 Good 5 Very Poor 29 Fair
Max LVORI Early 8 1 5 2
Max LVORI Late 8 1 5 2
Min Vsby Early 3 Fog 2 Fog 10 10
Min Vsby Late 2 Fog 10 10 10
Sunshine Hours N/A N/A N/A N/A
CWR 50 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Mostly cloudy. Lows in the upper 40s. South
winds around 5 mph.
.SUNDAY...Showers. Highs in the upper 50s. Southeast winds around
5 mph.
.SUNDAY NIGHT...Showers. Lows in the upper 40s. Northeast winds
around 5 mph.
.MONDAY AND MONDAY NIGHT...Mostly cloudy. Lows in the upper 40s.
Highs in the lower 60s. North winds around 5 mph.
.TUESDAY...Partly sunny. Highs in the upper 50s. Northeast winds
around 5 mph.
.TUESDAY NIGHT THROUGH THURSDAY...Partly cloudy. Lows in the
lower 40s. Highs in the upper 50s. East winds 5 to 10 mph.
$$
MAZ003-180800-
Eastern Franklin MA-
Including the cities of Greenfield and Orange
407 PM EDT Thu Sep 17 2026
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mclear Pcldy Mclear
Precip Type Tstms None None None
Chance Precip (%) 60
Chance of Thunder (%) 20 0 0 0
Temp (24h trend) 61 (+1) 75 (+1) 39 68
RH % (24h trend) 100 (0) 48 (-18) 100 37
20ft Wnd AM(mph) N 5 Lgt/Var
20ft Wnd PM(mph) Lgt/Var N 8 G17 N 5 Lgt/Var
Precip Amount 0.31 0.00 0.00 0.00
Precip Duration 3
Precip Begin 6 PM
Precip End 4 AM
Mixing Hgt (ft-AGL) 430 5680 410 3980
Transport Wnd (kts) NW 6 N 15 N 6 N 5
Vent Rate (kt-ft) 2580 85200 2460 19900
Max ADI Early 4 Very Poor 44 Gen Good 20 Gen Poor 30 Fair
Max ADI Late 4 Very Poor 56 Gen Good 6 Very Poor 30 Fair
Max LVORI Early 10 1 6 2
Max LVORI Late 10 1 6 2
Min Vsby Early 3 Fog 1 Fog 10 10
Min Vsby Late 2 Fog 10 10 10
Sunshine Hours N/A N/A N/A N/A
CWR 50 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Partly cloudy. Lows in the upper 40s. South
winds around 5 mph.
.SUNDAY...Showers. Highs around 60. Southeast winds around 5 mph.
.SUNDAY NIGHT...Showers. Lows in the lower 50s. Northeast winds
5 to 10 mph.
.MONDAY AND MONDAY NIGHT...Mostly cloudy. Lows 46 to 51. Highs in
the mid 60s. North winds 5 to 10 mph.
.TUESDAY...Partly sunny. Highs in the upper 50s. Northeast winds
5 to 10 mph.
.TUESDAY NIGHT THROUGH THURSDAY...Partly cloudy. Lows in the mid
40s. Highs in the lower 60s. East winds 10 to 15 mph.
$$
MAZ008-180800-
Western Hampshire MA-
Including the city of Chesterfield
407 PM EDT Thu Sep 17 2026
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mclear Pcldy Mclear
Precip Type Tstms None None None
Chance Precip (%) 60
Chance of Thunder (%) 20 0 0 0
Temp (24h trend) 59 (-1) 72 (-1) 42 65
RH % (24h trend) 100 (0) 49 (-27) 89 40
20ft Wnd AM(mph) NW 5 Lgt/Var
20ft Wnd PM(mph) Lgt/Var NW 7 N 5 Lgt/Var
Precip Amount 0.25 0.00 0.00 0.00
Precip Duration 3
Precip Begin 6 PM
Precip End 4 AM
Mixing Hgt (ft-AGL) 430 5260 420 4140
Transport Wnd (kts) NW 8 NW 15 N 7 N 5
Vent Rate (kt-ft) 3440 78900 2940 20700
Max ADI Early 10 Poor 48 Gen Good 29 Fair 24 Fair
Max ADI Late 6 Very Poor 55 Gen Good 6 Very Poor 30 Fair
Max LVORI Early 8 1 5 2
Max LVORI Late 8 1 5 2
Min Vsby Early 3 Fog 2 Fog 10 10
Min Vsby Late 5 Fog 10 10 10
Sunshine Hours N/A N/A N/A N/A
CWR 50 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Mostly cloudy. Lows in the upper 40s. South
winds around 5 mph.
.SUNDAY...Showers. Highs in the upper 50s. Southeast winds around
5 mph.
.SUNDAY NIGHT...Showers. Lows around 50. Northeast winds around
5 mph.
.MONDAY AND MONDAY NIGHT...Mostly cloudy. Lows in the upper 40s.
Highs in the lower 60s. Northeast winds around 5 mph.
.TUESDAY...Partly sunny. Highs in the mid 50s. Northeast winds
5 to 10 mph.
.TUESDAY NIGHT THROUGH THURSDAY...Partly cloudy. Lows in the mid
40s. Highs in the upper 50s. East winds 5 to 10 mph.
$$
MAZ010-180800-
Eastern Hampshire MA-
Including the cities of Amherst and Northampton
407 PM EDT Thu Sep 17 2026
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mclear Pcldy Pcldy
Precip Type Tstms None None None
Chance Precip (%) 50
Chance of Thunder (%) 20 0 0 0
Temp (24h trend) 63 (+3) 77 (+1) 41 68
RH % (24h trend) 100 (0) 48 (+1) 96 39
20ft Wnd AM(mph) N 5 Lgt/Var
20ft Wnd PM(mph) Lgt/Var N 8 N 6 Lgt/Var
Precip Amount 0.22 0.00 0.00 0.00
Precip Duration 2
Precip Begin 6 PM
Precip End 4 AM
Mixing Hgt (ft-AGL) 420 5740 410 4000
Transport Wnd (kts) NW 5 N 14 N 7 N 4
Vent Rate (kt-ft) 2100 80360 2870 16000
Max ADI Early 7 Poor 40 Fair 16 Gen Poor 28 Fair
Max ADI Late 5 Very Poor 51 Gen Good 7 Poor 28 Fair
Max LVORI Early 10 1 6 2
Max LVORI Late 10 1 6 2
Min Vsby Early 6 Fog 3 Fog 10 10
Min Vsby Late 5 Fog 10 10 10
Sunshine Hours N/A N/A N/A N/A
CWR 40 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Partly cloudy. Lows around 50. South winds
around 5 mph.
.SUNDAY...Showers. Highs in the lower 60s. Southeast winds around
5 mph.
.SUNDAY NIGHT...Showers. Lows in the lower 50s. Northeast winds
5 to 10 mph.
.MONDAY AND MONDAY NIGHT...Mostly cloudy. Lows around 50. Highs
in the mid 60s. North winds 5 to 10 mph.
.TUESDAY...Partly sunny. Highs around 60. Northeast winds 5 to
10 mph.
.TUESDAY NIGHT THROUGH THURSDAY...Partly cloudy. Lows in the mid
40s. Highs in the lower 60s. Northeast winds 10 to 15 mph.
$$
MAZ009-180800-
Western Hampden MA-
Including the city of Blandford
407 PM EDT Thu Sep 17 2026
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mclear Pcldy Pcldy
Precip Type Tstms None None None
Chance Precip (%) 50
Chance of Thunder (%) 20 0 0 0
Temp (24h trend) 61 (0) 74 (0) 43 65
RH % (24h trend) 100 (0) 49 (-17) 83 42
20ft Wnd AM(mph) NW 6 Lgt/Var
20ft Wnd PM(mph) Lgt/Var NW 7 N 5 Lgt/Var
Precip Amount 0.12 0.00 0.00 0.00
Precip Duration 2
Precip Begin 6 PM
Precip End 4 AM
Mixing Hgt (ft-AGL) 440 5120 420 4070
Transport Wnd (kts) NW 10 N 16 N 7 N 5
Vent Rate (kt-ft) 4400 81920 2940 20350
Max ADI Early 6 Very Poor 40 Fair 32 Fair 25 Fair
Max ADI Late 8 Poor 56 Gen Good 6 Very Poor 35 Fair
Max LVORI Early 9 1 5 2
Max LVORI Late 9 1 5 2
Min Vsby Early 10 5 Fog 10 10
Min Vsby Late 8 10 10 10
Sunshine Hours N/A N/A N/A N/A
CWR 30 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Mostly cloudy. Lows in the upper 40s. South
winds around 5 mph.
.SUNDAY...Showers. Highs in the upper 50s. Southeast winds around
5 mph.
.SUNDAY NIGHT...Showers. Lows in the lower 50s. Northeast winds
5 to 10 mph.
.MONDAY AND MONDAY NIGHT...Mostly cloudy. Lows in the upper 40s.
Highs in the mid 60s. Northeast winds 5 to 10 mph.
.TUESDAY...Partly sunny. Highs in the upper 50s. Northeast winds
5 to 10 mph.
.TUESDAY NIGHT THROUGH THURSDAY...Partly cloudy. Lows in the mid
40s. Highs in the upper 50s. Northeast winds 10 to 15 mph.
$$
MAZ011-180800-
Eastern Hampden MA-
Including the city of Springfield
407 PM EDT Thu Sep 17 2026
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mclear Pcldy Pcldy
Precip Type Tstms None None None
Chance Precip (%) 50 10
Chance of Thunder (%) 20 0 0 0
Temp (24h trend) 64 (+4) 77 (0) 43 68
RH % (24h trend) 100 (0) 46 (-16) 93 39
20ft Wnd AM(mph) N 5 G17 Lgt/Var
20ft Wnd PM(mph) S 5 N 8 N 6 Lgt/Var
Precip Amount 0.14 0.00 0.00 0.00
Precip Duration 2
Precip Begin 6 PM
Precip End 5 AM
Mixing Hgt (ft-AGL) 420 5690 410 4120
Transport Wnd (kts) NW 6 N 14 N 7 N 4
Vent Rate (kt-ft) 2520 79660 2870 16480
Max ADI Early 7 Poor 39 Fair 20 Gen Poor 27 Fair
Max ADI Late 6 Very Poor 51 Gen Good 7 Poor 25 Fair
Max LVORI Early 9 1 5 2
Max LVORI Late 9 1 5 2
Min Vsby Early 8 5 Fog 10 10
Min Vsby Late 9 10 10 10
Sunshine Hours N/A N/A N/A N/A
CWR 40 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Partly cloudy. Lows around 50. South winds
around 5 mph.
.SUNDAY...Showers. Highs in the lower 60s. Southeast winds around
5 mph.
.SUNDAY NIGHT...Showers. Lows in the lower 50s. Northeast winds
5 to 10 mph.
.MONDAY...Partly sunny with a chance of showers. Highs in the mid
60s. North winds 5 to 10 mph.
.MONDAY NIGHT AND TUESDAY...Mostly cloudy. Lows in the upper 40s.
Highs around 60. Northeast winds 5 to 10 mph.
.TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Partly cloudy. Lows in
the mid 40s. Highs in the lower 60s. Northeast winds 10 to
15 mph.
.THURSDAY...Partly sunny. Highs in the lower 60s. Northeast winds
5 to 10 mph.
$$
CTZ002-180800-
Hartford CT-
Including the cities of Hartford and Windsor Locks
407 PM EDT Thu Sep 17 2026
Tonight Fri Fri Night Sat
Cloud Cover Pcldy Mclear Pcldy Mclear
Precip Type Tstms None None None
Chance Precip (%) 50 10
Chance of Thunder (%) 20 0 0 0
Temp (24h trend) 64 (+3) 78 (0) 47 69
RH % (24h trend) 100 (0) 43 (-21) 86 39
20ft Wnd AM(mph) N 6 Lgt/Var
20ft Wnd PM(mph) Lgt/Var N 8 N 5 Lgt/Var
Precip Amount 0.08 0.00 0.00 0.00
Precip Duration 2
Precip Begin 6 PM
Precip End 5 AM
Mixing Hgt (ft-AGL) 420 5340 430 4060
Transport Wnd (kts) NW 7 N 13 N 8 N 4
Vent Rate (kt-ft) 2940 69420 3440 16240
Max ADI Early 7 Poor 42 Gen Good 22 Fair 30 Fair
Max ADI Late 5 Very Poor 50 Gen Good 7 Poor 27 Fair
Max LVORI Early 9 2 5 2
Max LVORI Late 9 2 5 2
Min Vsby Early 10 10 10 10
Min Vsby Late 10 10 10 10
Sunshine Hours N/A N/A N/A N/A
CWR 30 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Mostly cloudy. Lows in the lower 50s. Southeast
winds around 5 mph.
.SUNDAY...Showers. Highs in the lower 60s. Southeast winds around
5 mph.
.SUNDAY NIGHT...Showers. Lows in the mid 50s. Northeast winds
5 to 10 mph.
.MONDAY AND MONDAY NIGHT...Mostly cloudy with a chance of
showers. Lows 49 to 54. Highs in the mid 60s. Northeast winds
5 to 10 mph.
.TUESDAY...Mostly cloudy with a chance of showers. Highs around
60. Northeast winds 5 to 10 mph.
.TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Partly cloudy. Lows in
the upper 40s. Highs in the lower 60s. Northeast winds 10 to
15 mph.
.THURSDAY...Partly sunny. Highs in the lower 60s. Northeast winds
10 to 15 mph.
$$
CTZ003-180800-
Tolland CT-
Including the cities of Union and Vernon
407 PM EDT Thu Sep 17 2026
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mclear Pcldy Pcldy
Precip Type Tstms None None None
Chance Precip (%) 50 10
Chance of Thunder (%) 20 0 0 0
Temp (24h trend) 64 (+4) 76 (-1) 46 68
RH % (24h trend) 100 (0) 50 (-19) 86 40
20ft Wnd AM(mph) NW 6 G17 Lgt/Var
20ft Wnd PM(mph) S 5 N 7 N 6 Lgt/Var
Precip Amount 0.12 0.00 0.00 0.00
Precip Duration 2
Precip Begin 6 PM
Precip End 6 AM
Mixing Hgt (ft-AGL) 430 5210 420 4270
Transport Wnd (kts) W 7 N 14 N 7 NW 3
Vent Rate (kt-ft) 3010 72940 2940 12810
Max ADI Early 8 Poor 39 Fair 22 Fair 29 Fair
Max ADI Late 7 Poor 48 Gen Good 7 Poor 26 Fair
Max LVORI Early 9 2 5 2
Max LVORI Late 9 2 5 2
Min Vsby Early 10 4 Fog 10 10
Min Vsby Late 10 10 10 10
Sunshine Hours N/A N/A N/A N/A
CWR 40 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Mostly cloudy. Lows around 50. Southeast winds
around 5 mph.
.SUNDAY...Showers. Highs in the lower 60s. Southeast winds around
5 mph.
.SUNDAY NIGHT...Showers. Lows in the mid 50s. East winds around
5 mph, becoming northeast after midnight.
.MONDAY AND MONDAY NIGHT...Mostly cloudy with a chance of
showers. Lows 49 to 54. Highs in the mid 60s. Northeast winds
5 to 10 mph.
.TUESDAY...Partly sunny. Highs in the upper 50s. Northeast winds
5 to 10 mph.
.TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Partly cloudy. Lows in
the upper 40s. Highs around 60. Northeast winds 10 to 15 mph.
.THURSDAY...Partly sunny. Highs in the lower 60s. Northeast winds
around 10 mph.
$$
CTZ004-180800-
Windham CT-
Including the cities of Putnam and Willimantic
407 PM EDT Thu Sep 17 2026
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mclear Pcldy Pcldy
Precip Type Tstms None None None
Chance Precip (%) 40 10
Chance of Thunder (%) 20 0 0 0
Temp (24h trend) 65 (+5) 77 (0) 45 68
RH % (24h trend) 100 (0) 48 (-19) 83 43
20ft Wnd AM(mph) NW 5 Lgt/Var
20ft Wnd PM(mph) Lgt/Var N 7 N 5 Lgt/Var
Precip Amount 0.11 0.00 0.00 0.00
Precip Duration 2
Precip Begin 6 PM
Precip End 6 AM
Mixing Hgt (ft-AGL) 470 5190 430 4360
Transport Wnd (kts) SW 9 N 13 N 7 N 4
Vent Rate (kt-ft) 4230 67470 3010 17440
Max ADI Early 8 Poor 39 Fair 21 Fair 31 Fair
Max ADI Late 8 Poor 47 Gen Good 5 Very Poor 32 Fair
Max LVORI Early 9 2 5 2
Max LVORI Late 9 2 5 2
Min Vsby Early 10 3 Fog 10 10
Min Vsby Late 10 10 10 10
Sunshine Hours N/A N/A N/A N/A
CWR 30 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Partly cloudy. Lows around 50. Southeast winds
around 5 mph.
.SUNDAY...Showers. Highs in the mid 60s. Southeast winds around
5 mph.
.SUNDAY NIGHT...Showers. Lows in the mid 50s. East winds around
5 mph, becoming northeast after midnight.
.MONDAY AND MONDAY NIGHT...Mostly cloudy with a chance of
showers. Lows 49 to 54. Highs in the mid 60s. Northeast winds
5 to 10 mph.
.TUESDAY...Partly sunny. Highs in the upper 50s. Northeast winds
5 to 10 mph.
.TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Partly cloudy. Lows in
the upper 40s. Highs in the lower 60s. Northeast winds 10 to
15 mph.
.THURSDAY...Partly sunny. Highs in the lower 60s. Northeast winds
10 to 15 mph.
$$
RIZ001-180800-
Northwest Providence RI-
Including the cities of Foster and Smithfield
407 PM EDT Thu Sep 17 2026
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mclear Mclear Mclear
Precip Type Tstms None None None
Chance Precip (%) 50 20
Chance of Thunder (%) 20 0 0 0
Temp (24h trend) 65 (+4) 77 (0) 46 67
RH % (24h trend) 100 (0) 46 (-22) 83 43
20ft Wnd AM(mph) NW 6 Lgt/Var
20ft Wnd PM(mph) S 5 N 7 N 5 Lgt/Var
Precip Amount 0.12 0.00 0.00 0.00
Precip Duration 2
Precip Begin 6 PM
Precip End 6 AM
Mixing Hgt (ft-AGL) 450 5580 440 4330
Transport Wnd (kts) W 10 N 13 N 8 NE 5
Vent Rate (kt-ft) 4500 72540 3520 21650
Max ADI Early 9 Poor 40 Fair 39 Fair 36 Fair
Max ADI Late 9 Poor 57 Gen Good 8 Poor 38 Fair
Max LVORI Early 9 2 5 2
Max LVORI Late 9 2 5 2
Min Vsby Early 10 5 Fog 10 10
Min Vsby Late 8 10 10 10
Sunshine Hours N/A N/A N/A N/A
CWR 30 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Partly cloudy. Lows around 50. Southeast winds
around 5 mph.
.SUNDAY...Showers. Highs in the lower 60s. Southeast winds around
5 mph.
.SUNDAY NIGHT...Cloudy with showers likely. Lows in the mid 50s.
East winds around 5 mph, becoming northeast after midnight.
.MONDAY...Mostly cloudy with a chance of showers. Highs in the
mid 60s. Northeast winds 5 to 10 mph.
.MONDAY NIGHT AND TUESDAY...Mostly cloudy. Lows around 50. Highs
in the upper 50s. Northeast winds 5 to 10 mph.
.TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Partly cloudy. Lows in
the upper 40s. Highs in the lower 60s. Northeast winds 10 to
15 mph.
.THURSDAY...Partly sunny. Highs in the lower 60s. Northeast winds
5 to 10 mph.
$$
RIZ002-180800-
Southeast Providence RI-
Including the city of Providence
407 PM EDT Thu Sep 17 2026
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mclear Mclear Mclear
Precip Type Tstms None None None
Chance Precip (%) 50 20
Chance of Thunder (%) 20 0 0 0
Temp (24h trend) 66 (+5) 78 (0) 48 67
RH % (24h trend) 100 (0) 45 (-17) 83 46
20ft Wnd AM(mph) NW 6 Lgt/Var
20ft Wnd PM(mph) S 5 N 7 N 5 Lgt/Var
Precip Amount 0.11 0.00 0.00 0.00
Precip Duration 2
Precip Begin 6 PM
Precip End 6 AM
Mixing Hgt (ft-AGL) 430 5790 430 4530
Transport Wnd (kts) SW 10 N 12 N 8 NE 5
Vent Rate (kt-ft) 4300 69480 3440 22650
Max ADI Early 28 Fair 42 Gen Good 36 Fair 42 Gen Good
Max ADI Late 8 Poor 77 Good 8 Poor 41 Gen Good
Max LVORI Early 9 1 5 2
Max LVORI Late 9 1 5 2
Min Vsby Early 10 10 10 10
Min Vsby Late 10 10 10 10
Sunshine Hours N/A N/A N/A N/A
CWR 30 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Partly cloudy. Lows in the lower 50s. Southeast
winds around 5 mph.
.SUNDAY...Mostly cloudy with showers likely. Highs in the mid
60s. Southeast winds around 5 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely. Lows in the
mid 50s. East winds around 5 mph, becoming northeast after
midnight.
.MONDAY AND MONDAY NIGHT...Mostly cloudy with a chance of
showers. Lows in the mid 50s. Highs in the mid 60s. Northeast
winds 5 to 10 mph.
.TUESDAY...Partly sunny with a chance of showers. Highs around
60. Northeast winds 5 to 10 mph.
.TUESDAY NIGHT...Mostly cloudy. Lows around 50. Northeast winds
5 to 10 mph.
.WEDNESDAY AND WEDNESDAY NIGHT...Partly cloudy. Lows around 50.
Highs in the lower 60s. Northeast winds 10 to 15 mph.
.THURSDAY...Partly sunny. Highs in the lower 60s. Northeast winds
10 to 15 mph.
$$
RIZ003-180800-
Western Kent RI-
Including the cities of Coventry and West Greenwich
407 PM EDT Thu Sep 17 2026
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mclear Pcldy Mclear
Precip Type Tstms None None None
Chance Precip (%) 50 20
Chance of Thunder (%) 20 0 0 0
Temp (24h trend) 65 (+5) 77 (+1) 48 67
RH % (24h trend) 100 (0) 48 (-25) 77 45
20ft Wnd AM(mph) NW 6 Lgt/Var
20ft Wnd PM(mph) SW 5 N 7 N 5 Lgt/Var
Precip Amount 0.07 0.00 0.00 0.00
Precip Duration 2
Precip Begin 6 PM
Precip End 6 AM
Mixing Hgt (ft-AGL) 430 5420 420 4250
Transport Wnd (kts) W 9 N 12 N 8 NE 5
Vent Rate (kt-ft) 3870 65040 3360 21250
Max ADI Early 23 Fair 39 Fair 24 Fair 36 Fair
Max ADI Late 10 Poor 71 Good 10 Poor 35 Fair
Max LVORI Early 9 3 5 2
Max LVORI Late 9 3 5 2
Min Vsby Early 10 10 10 10
Min Vsby Late 10 10 10 10
Sunshine Hours N/A N/A N/A N/A
CWR 20 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Partly cloudy. Lows in the lower 50s. Southeast
winds around 5 mph.
.SUNDAY...Mostly cloudy with showers likely. Highs in the mid
60s. Southeast winds around 5 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely. Lows in the
mid 50s. Southeast winds around 5 mph, becoming northeast after
midnight.
.MONDAY AND MONDAY NIGHT...Mostly cloudy with a chance of
showers. Lows in the lower 50s. Highs in the mid 60s. Northeast
winds 5 to 10 mph.
.TUESDAY...Partly sunny with a chance of showers. Highs in the
upper 50s. Northeast winds around 10 mph.
.TUESDAY NIGHT...Mostly cloudy. Lows in the upper 40s. Northeast
winds 10 to 15 mph.
.WEDNESDAY AND WEDNESDAY NIGHT...Partly cloudy. Lows in the upper
40s. Highs in the lower 60s. Northeast winds 10 to 15 mph.
.THURSDAY...Partly sunny with a chance of showers. Highs in the
lower 60s. Northeast winds 10 to 15 mph.
$$
RIZ004-180800-
Eastern Kent RI-
Including the cities of East Greenwich, Warwick, and West Warwick
407 PM EDT Thu Sep 17 2026
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mclear Pcldy Mclear
Precip Type Tstms Showers None None
Chance Precip (%) 50 30
Chance of Thunder (%) 20 0 0 0
Temp (24h trend) 66 (+4) 78 (+1) 50 67
RH % (24h trend) 100 (0) 46 (-16) 77 47
20ft Wnd AM(mph) NW 6 NE 5
20ft Wnd PM(mph) S 6 N 7 N 6 Lgt/Var
Precip Amount 0.07 0.00 0.00 0.00
Precip Duration 2
Precip Begin 7 PM
Precip End 6 AM
Mixing Hgt (ft-AGL) 440 5730 440 4440
Transport Wnd (kts) SW 11 N 12 N 9 NE 5
Vent Rate (kt-ft) 4840 68760 3960 22200
Max ADI Early 23 Fair 40 Fair 23 Fair 44 Gen Good
Max ADI Late 11 Poor 44 Gen Good 10 Poor 42 Gen Good
Max LVORI Early 8 1 4 2
Max LVORI Late 8 1 4 2
Min Vsby Early 10 10 10 10
Min Vsby Late 10 10 10 10
Sunshine Hours N/A N/A N/A N/A
CWR 30 10 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Partly cloudy. Lows in the lower 50s. Southeast
winds around 5 mph.
.SUNDAY...Mostly cloudy with showers likely. Highs in the mid
60s. Southeast winds around 5 mph.
.SUNDAY NIGHT...Cloudy with showers likely. Lows in the mid 50s.
Southeast winds around 5 mph, becoming northeast after midnight.
.MONDAY AND MONDAY NIGHT...Mostly cloudy with a chance of
showers. Lows in the mid 50s. Highs in the mid 60s. Northeast
winds 5 to 10 mph.
.TUESDAY...Partly sunny with a chance of showers. Highs around
60. Northeast winds 10 to 15 mph.
.TUESDAY NIGHT...Mostly cloudy. Lows in the lower 50s. Northeast
winds 10 to 15 mph.
.WEDNESDAY AND WEDNESDAY NIGHT...Partly cloudy. Lows in the lower
50s. Highs in the lower 60s. Northeast winds 10 to 15 mph.
.THURSDAY...Partly sunny with a chance of showers. Highs in the
lower 60s. Northeast winds 10 to 15 mph.
$$
RIZ005-180800-
Bristol RI-
Including the city of Bristol
407 PM EDT Thu Sep 17 2026
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Pcldy Pcldy Mclear
Precip Type Tstms Showers None None
Chance Precip (%) 50 30
Chance of Thunder (%) 20 0 0 0
Temp (24h trend) 67 (+4) 78 (+2) 50 66
RH % (24h trend) 97 (-3) 47 (-26) 80 48
20ft Wnd AM(mph) NW 6 NE 5
20ft Wnd PM(mph) S 7 N 7 N 6 Lgt/Var
Precip Amount 0.12 0.00 0.00 0.00
Precip Duration 3
Precip Begin 7 PM
Precip End 6 AM
Mixing Hgt (ft-AGL) 440 5700 440 4630
Transport Wnd (kts) S 12 N 11 N 9 N 6
Vent Rate (kt-ft) 5280 62700 3960 27780
Max ADI Early 18 Gen Poor 39 Fair 16 Gen Poor 48 Gen Good
Max ADI Late 13 Gen Poor 43 Gen Good 11 Poor 44 Gen Good
Max LVORI Early 8 2 4 2
Max LVORI Late 8 2 4 2
Min Vsby Early 10 6 Fog 10 10
Min Vsby Late 10 10 10 10
Sunshine Hours N/A N/A N/A N/A
CWR 30 10 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Partly cloudy. Lows in the mid 50s. Southeast
winds around 5 mph.
.SUNDAY...Mostly cloudy with showers likely. Highs in the mid
60s. Southeast winds around 5 mph.
.SUNDAY NIGHT...Cloudy with showers likely. Lows in the upper
50s. Southeast winds around 5 mph, becoming northeast after
midnight.
.MONDAY AND MONDAY NIGHT...Mostly cloudy. A chance of showers.
Lows in the mid 50s. Highs in the upper 60s. Northeast winds 5 to
10 mph.
.TUESDAY...Partly sunny with a chance of showers. Highs in the
lower 60s. Northeast winds 10 to 15 mph.
.TUESDAY NIGHT...Mostly cloudy. Lows in the lower 50s. Northeast
winds 10 to 15 mph.
.WEDNESDAY AND WEDNESDAY NIGHT...Partly cloudy. Lows in the lower
50s. Highs in the lower 60s. Northeast winds 10 to 15 mph.
.THURSDAY...Partly sunny with a chance of showers. Highs in the
lower 60s. Northeast winds 10 to 15 mph.
$$
RIZ006-180800-
Washington RI-
Including the cities of Narragansett and Westerly
407 PM EDT Thu Sep 17 2026
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Pcldy Pcldy Mclear
Precip Type Tstms Showers None None
Chance Precip (%) 50 30
Chance of Thunder (%) 20 0 0 0
Temp (24h trend) 66 (+5) 78 (+3) 49 67
RH % (24h trend) 100 (0) 48 (-22) 80 46
20ft Wnd AM(mph) NW 6 NE 5
20ft Wnd PM(mph) SW 5 N 7 N 5 Lgt/Var
Precip Amount 0.06 0.01 0.00 0.00
Precip Duration 2 0
Precip Begin 7 PM Continuing
Precip End Continuing 8 AM
Mixing Hgt (ft-AGL) 430 5300 410 4430
Transport Wnd (kts) SW 11 N 10 N 10 NE 5
Vent Rate (kt-ft) 4730 53000 4100 22150
Max ADI Early 15 Gen Poor 35 Fair 17 Gen Poor 39 Fair
Max ADI Late 13 Gen Poor 41 Gen Good 12 Poor 39 Fair
Max LVORI Early 9 3 4 2
Max LVORI Late 9 3 4 2
Min Vsby Early 10 9 10 10
Min Vsby Late 10 10 10 10
Sunshine Hours N/A N/A N/A N/A
CWR 20 20 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Partly cloudy. Lows in the lower 50s. Southeast
winds around 5 mph.
.SUNDAY...Mostly cloudy with showers likely. Highs in the mid
60s. Southeast winds 5 to 10 mph.
.SUNDAY NIGHT...Cloudy with showers likely. Lows in the mid 50s.
Southeast winds 5 to 10 mph, becoming northeast after midnight.
.MONDAY AND MONDAY NIGHT...Mostly cloudy with a chance of
showers. Lows in the mid 50s. Highs in the mid 60s. Northeast
winds 10 to 15 mph.
.TUESDAY...Partly sunny with a chance of showers. Highs in the
lower 60s. Northeast winds 15 to 20 mph.
.TUESDAY NIGHT...Mostly cloudy. Lows around 50. Northeast winds
15 to 20 mph.
.WEDNESDAY...Breezy. Mostly sunny. Highs in the lower 60s.
Northeast winds 20 to 25 mph.
.WEDNESDAY NIGHT...Mostly cloudy. Lows in the lower 50s.
Northeast winds 15 to 20 mph.
.THURSDAY...Partly sunny with a chance of showers. Highs in the
lower 60s. Northeast winds 15 to 20 mph.
$$
RIZ007-180800-
Newport RI-
Including the city of Newport
407 PM EDT Thu Sep 17 2026
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Pcldy Pcldy Mclear
Precip Type Tstms Showers None None
Chance Precip (%) 50 40
Chance of Thunder (%) 20 0 0 0
Temp (24h trend) 66 (+2) 78 (+4) 51 66
RH % (24h trend) 100 (0) 47 (-26) 83 48
20ft Wnd AM(mph) NW 7 NE 7
20ft Wnd PM(mph) S 7 N 7 N 7 E 5
Precip Amount 0.10 0.02 0.00 0.00
Precip Duration 2 0
Precip Begin 7 PM Continuing
Precip End Continuing 8 AM
Mixing Hgt (ft-AGL) 440 4020 440 4490
Transport Wnd (kts) SW 13 N 10 N 10 NE 6
Vent Rate (kt-ft) 5720 40200 4400 26940
Max ADI Early 14 Gen Poor 31 Fair 11 Poor 42 Gen Good
Max ADI Late 14 Gen Poor 30 Fair 12 Poor 43 Gen Good
Max LVORI Early 8 3 4 1
Max LVORI Late 8 3 4 1
Min Vsby Early 10 5 Fog 10 10
Min Vsby Late 10 10 10 10
Sunshine Hours N/A N/A N/A N/A
CWR 30 20 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Partly cloudy. Lows in the mid 50s. Southeast
winds around 5 mph.
.SUNDAY...Mostly cloudy with showers likely. Highs in the upper
60s. Southeast winds 5 to 10 mph.
.SUNDAY NIGHT...Cloudy with showers likely. Lows in the upper
50s. Southeast winds 5 to 10 mph, becoming northeast after
midnight.
.MONDAY AND MONDAY NIGHT...Mostly cloudy with a chance of
showers. Lows in the upper 50s. Highs in the upper 60s. Northeast
winds 10 to 15 mph.
.TUESDAY...Partly sunny with a chance of showers. Highs in the
lower 60s. Northeast winds 15 to 20 mph.
.TUESDAY NIGHT...Mostly cloudy. Lows in the mid 50s. Northeast
winds 15 to 20 mph.
.WEDNESDAY AND WEDNESDAY NIGHT...Breezy. Partly cloudy. Lows in
the mid 50s. Highs in the lower 60s. Northeast winds 15 to
25 mph.
.THURSDAY...Partly sunny with a chance of showers. Highs in the
lower 60s. Northeast winds 15 to 20 mph.
$$
RIZ008-180800-
Block Island RI-
Including the city of New Shoreham
407 PM EDT Thu Sep 17 2026
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mclear Pcldy Mclear
Precip Type Tstms Showers None None
Chance Precip (%) 40 30
Chance of Thunder (%) 20 0 0 0
Temp (24h trend) 68 (+2) 74 (+2) 57 64
RH % (24h trend) 100 (+3) 68 (-10) 77 58
20ft Wnd AM(mph) NW 8 NE 10
20ft Wnd PM(mph) SW 8 N 5 N 7 E 7
Precip Amount 0.06 0.02 0.00 0.00
Precip Duration 1 0
Precip Begin 10 PM Continuing
Precip End Continuing 8 AM
Mixing Hgt (ft-AGL) 500 980 500 3410
Transport Wnd (kts) S 13 N 10 N 7 NE 7
Vent Rate (kt-ft) 6500 9800 3500 23870
Max ADI Early 16 Gen Poor 14 Gen Poor 20 Gen Poor 33 Fair
Max ADI Late 19 Gen Poor 11 Poor 26 Fair 33 Fair
Max LVORI Early 5 4 3 2
Max LVORI Late 5 4 3 2
Min Vsby Early 10 10 10 10
Min Vsby Late 10 10 10 10
Sunshine Hours N/A N/A N/A N/A
CWR 30 20 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Partly cloudy. Lows around 60. Southeast winds
around 5 mph.
.SUNDAY...Mostly cloudy with showers likely. Highs in the upper
60s. Southeast winds 5 to 10 mph.
.SUNDAY NIGHT...Cloudy with showers likely. Lows in the lower
60s. Southeast winds 5 to 10 mph, becoming northeast 10 to 15 mph
after midnight.
.MONDAY THROUGH TUESDAY...Mostly cloudy with a chance of showers.
Lows in the lower 60s. Highs in the mid 60s. Northeast winds
15 to 20 mph.
.TUESDAY NIGHT...Breezy. Mostly cloudy. Lows in the upper 50s.
Northeast winds 15 to 25 mph.
.WEDNESDAY...Breezy. Mostly sunny. Highs in the lower 60s.
Northeast winds 20 to 25 mph.
.WEDNESDAY NIGHT...Breezy. Mostly cloudy. Lows in the upper 50s.
Northeast winds 15 to 25 mph.
.THURSDAY...Breezy. Partly sunny with a chance of showers. Highs
in the lower 60s. Northeast winds 20 to 25 mph.
$$
MAZ017-180800-
Northern Bristol MA-
Including the city of Taunton
407 PM EDT Thu Sep 17 2026
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mclear Mclear Mclear
Precip Type Tstms None None None
Chance Precip (%) 60 30
Chance of Thunder (%) 20 0 0 0
Temp (24h trend) 65 (+5) 78 (0) 45 66
RH % (24h trend) 100 (0) 45 (-21) 93 46
20ft Wnd AM(mph) NW 5 Lgt/Var
20ft Wnd PM(mph) Lgt/Var N 6 N 5 Lgt/Var
Precip Amount 0.15 0.00 0.00 0.00
Precip Duration 3
Precip Begin 6 PM
Precip End 6 AM
Mixing Hgt (ft-AGL) 430 5870 420 4400
Transport Wnd (kts) SW 11 N 13 N 8 NE 6
Vent Rate (kt-ft) 4730 76310 3360 26400
Max ADI Early 23 Fair 48 Gen Good 36 Fair 48 Gen Good
Max ADI Late 9 Poor 97 Good 8 Poor 44 Gen Good
Max LVORI Early 9 1 5 2
Max LVORI Late 9 1 5 2
Min Vsby Early 10 5 Fog 10 10
Min Vsby Late 6 Fog 10 10 10
Sunshine Hours N/A N/A N/A N/A
CWR 40 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Partly cloudy. Lows in the upper 40s. Southeast
winds around 5 mph in the evening, becoming light and variable.
.SUNDAY...Mostly cloudy with showers likely. Highs in the mid
60s. Southeast winds around 5 mph.
.SUNDAY NIGHT...Cloudy with showers likely. Lows in the lower
50s. Southeast winds around 5 mph, becoming northeast after
midnight.
.MONDAY...Partly sunny with a chance of showers. Highs in the mid
60s. Northeast winds 5 to 10 mph.
.MONDAY NIGHT THROUGH TUESDAY NIGHT...Mostly cloudy. Lows in the
upper 40s. Highs around 60. Northeast winds 5 to 10 mph.
.WEDNESDAY AND WEDNESDAY NIGHT...Partly cloudy. Lows in the upper
40s. Highs in the lower 60s. Northeast winds 10 to 15 mph.
.THURSDAY...Partly sunny with a chance of showers. Highs in the
lower 60s. Northeast winds 5 to 10 mph.
$$
MAZ018-180800-
Western Plymouth MA-
Including the city of Brockton
407 PM EDT Thu Sep 17 2026
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mclear Pcldy Mclear
Precip Type Tstms Showers None None
Chance Precip (%) 60 30
Chance of Thunder (%) 20 0 0 0
Temp (24h trend) 65 (+7) 77 (-1) 45 64
RH % (24h trend) 100 (0) 46 (-22) 93 48
20ft Wnd AM(mph) NW 5 Lgt/Var
20ft Wnd PM(mph) S 5 N 7 N 5 Lgt/Var
Precip Amount 0.14 0.01 0.00 0.00
Precip Duration 4 0
Precip Begin 6 PM Continuing
Precip End Continuing 8 AM
Mixing Hgt (ft-AGL) 420 5910 410 4120
Transport Wnd (kts) SW 11 N 13 N 9 NE 9
Vent Rate (kt-ft) 4620 76830 3690 37080
Max ADI Early 8 Poor 40 Fair 28 Fair 52 Gen Good
Max ADI Late 10 Poor 89 Good 8 Poor 48 Gen Good
Max LVORI Early 9 2 5 2
Max LVORI Late 9 2 5 2
Min Vsby Early 10 3 Fog 10 10
Min Vsby Late 6 Fog 10 10 10
Sunshine Hours N/A N/A N/A N/A
CWR 40 20 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Partly cloudy. Lows in the upper 40s. Southeast
winds around 5 mph.
.SUNDAY...Mostly cloudy with showers likely. Highs in the mid
60s. Southeast winds around 5 mph.
.SUNDAY NIGHT...Cloudy with showers likely. Lows in the lower
50s. Southeast winds around 5 mph, becoming northeast after
midnight.
.MONDAY...Partly sunny with a chance of showers. Highs in the mid
60s. Northeast winds 5 to 10 mph.
.MONDAY NIGHT THROUGH TUESDAY NIGHT...Mostly cloudy. Lows around
50. Highs around 60. Northeast winds 10 to 15 mph.
.WEDNESDAY...Mostly sunny. Highs in the lower 60s. Northeast
winds 10 to 15 mph.
.WEDNESDAY NIGHT...Mostly cloudy. Lows in the upper 40s.
Northeast winds 10 to 15 mph.
.THURSDAY...Partly sunny with a chance of showers. Highs in the
lower 60s. Northeast winds 10 to 15 mph.
$$
MAZ019-180800-
Eastern Plymouth MA-
Including the city of Plymouth
407 PM EDT Thu Sep 17 2026
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mclear Pcldy Mclear
Precip Type Tstms None None None
Chance Precip (%) 70 30
Chance of Thunder (%) 20 0 0 0
Temp (24h trend) 65 (+5) 75 (-1) 49 64
RH % (24h trend) 100 (0) 49 (-15) 86 50
20ft Wnd AM(mph) NW 7 G17 NE 7
20ft Wnd PM(mph) S 6 N 7 N 7 NE 5
Precip Amount 0.17 0.00 0.00 0.00
Precip Duration 4
Precip Begin 6 PM
Precip End 6 AM
Mixing Hgt (ft-AGL) 430 3580 440 3690
Transport Wnd (kts) SW 13 N 11 N 9 NE 11
Vent Rate (kt-ft) 5590 39380 3960 40590
Max ADI Early 12 Poor 31 Fair 12 Poor 38 Fair
Max ADI Late 14 Gen Poor 31 Fair 12 Poor 39 Fair
Max LVORI Early 8 3 3 2
Max LVORI Late 8 3 3 2
Min Vsby Early 10 3 Fog 10 10
Min Vsby Late 5 Fog 10 10 10
Sunshine Hours N/A N/A N/A N/A
CWR 40 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Partly cloudy. Lows in the lower 50s. Southeast
winds around 5 mph.
.SUNDAY...Mostly cloudy with showers likely. Highs in the mid
60s. Southeast winds 5 to 10 mph.
.SUNDAY NIGHT...Cloudy with showers likely. Lows in the mid 50s.
Southeast winds around 5 mph, becoming northeast after midnight.
.MONDAY...Partly sunny with a chance of showers. Highs in the mid
60s. Northeast winds 10 to 15 mph.
.MONDAY NIGHT THROUGH TUESDAY NIGHT...Mostly cloudy. Lows in the
mid 50s. Highs in the lower 60s. Northeast winds 15 to 20 mph.
.WEDNESDAY AND WEDNESDAY NIGHT...Partly cloudy. Lows in the lower
50s. Highs in the lower 60s. Northeast winds 15 to 20 mph.
.THURSDAY...Mostly sunny with a chance of showers. Highs in the
lower 60s. Northeast winds 15 to 20 mph.
$$
MAZ020-180800-
Southern Bristol MA-
Including the cities of Fall River and New Bedford
407 PM EDT Thu Sep 17 2026
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Pcldy Pcldy Mclear
Precip Type Tstms Showers None None
Chance Precip (%) 50 40
Chance of Thunder (%) 20 0 0 0
Temp (24h trend) 65 (+4) 79 (+4) 47 67
RH % (24h trend) 100 (0) 45 (-26) 93 47
20ft Wnd AM(mph) NW 6 NE 5
20ft Wnd PM(mph) S 6 N 7 N 5 E 5
Precip Amount 0.12 0.01 0.00 0.00
Precip Duration 2 0
Precip Begin 7 PM Continuing
Precip End Continuing 8 AM
Mixing Hgt (ft-AGL) 430 5850 410 4440
Transport Wnd (kts) SW 13 N 11 N 9 NE 7
Vent Rate (kt-ft) 5590 64350 3690 31080
Max ADI Early 16 Gen Poor 39 Fair 18 Gen Poor 48 Gen Good
Max ADI Late 13 Gen Poor 76 Good 9 Poor 46 Gen Good
Max LVORI Early 8 2 5 2
Max LVORI Late 8 2 5 2
Min Vsby Early 10 5 Fog 10 10
Min Vsby Late 6 Fog 10 10 10
Sunshine Hours N/A N/A N/A N/A
CWR 30 20 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Partly cloudy. Lows in the lower 50s. Southeast
winds around 5 mph.
.SUNDAY...Mostly cloudy with showers likely. Highs in the upper
60s. Southeast winds 5 to 10 mph.
.SUNDAY NIGHT...Cloudy with showers likely. Lows in the mid 50s.
Southeast winds 5 to 10 mph, becoming northeast after midnight.
.MONDAY AND MONDAY NIGHT...Mostly cloudy. A chance of showers.
Lows in the mid 50s. Highs in the upper 60s. Northeast winds
10 to 15 mph.
.TUESDAY...Partly sunny with a chance of showers. Highs in the
lower 60s. Northeast winds 15 to 20 mph.
.TUESDAY NIGHT...Mostly cloudy. Lows in the lower 50s. Northeast
winds 15 to 20 mph.
.WEDNESDAY AND WEDNESDAY NIGHT...Breezy. Partly cloudy. Lows in
the lower 50s. Highs in the lower 60s. Northeast winds 15 to
25 mph.
.THURSDAY...Breezy. Partly sunny with a chance of showers. Highs
in the lower 60s. Northeast winds 20 to 25 mph.
$$
MAZ021-180800-
Southern Plymouth MA-
Including the city of Mattapoisett
407 PM EDT Thu Sep 17 2026
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Pcldy Pcldy Mclear
Precip Type Tstms Showers None None
Chance Precip (%) 60 40
Chance of Thunder (%) 20 0 0 0
Temp (24h trend) 65 (+4) 79 (+4) 47 66
RH % (24h trend) 100 (0) 48 (-25) 93 48
20ft Wnd AM(mph) NW 6 NE 6
20ft Wnd PM(mph) S 6 N 7 N 5 NE 5
Precip Amount 0.13 0.02 0.00 0.00
Precip Duration 3 0
Precip Begin 7 PM Continuing
Precip End Continuing 8 AM
Mixing Hgt (ft-AGL) 430 5390 410 4100
Transport Wnd (kts) SW 12 N 11 N 9 NE 9
Vent Rate (kt-ft) 5160 59290 3690 36900
Max ADI Early 9 Poor 39 Fair 15 Gen Poor 52 Gen Good
Max ADI Late 14 Gen Poor 65 Good 8 Poor 53 Gen Good
Max LVORI Early 8 2 5 2
Max LVORI Late 8 2 5 2
Min Vsby Early 10 4 Fog 10 10
Min Vsby Late 6 Fog 10 10 10
Sunshine Hours N/A N/A N/A N/A
CWR 40 30 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Partly cloudy. Lows in the lower 50s. Southeast
winds around 5 mph.
.SUNDAY...Mostly cloudy with showers likely. Highs in the upper
60s. Southeast winds 5 to 10 mph.
.SUNDAY NIGHT...Cloudy with showers likely. Lows in the mid 50s.
Southeast winds 5 to 10 mph, becoming northeast after midnight.
.MONDAY AND MONDAY NIGHT...Mostly cloudy. A chance of showers.
Lows in the mid 50s. Highs in the upper 60s. Northeast winds
10 to 15 mph.
.TUESDAY...Partly sunny with a chance of showers. Highs in the
lower 60s. Northeast winds 10 to 15 mph.
.TUESDAY NIGHT...Mostly cloudy. Lows in the lower 50s. Northeast
winds 10 to 15 mph.
.WEDNESDAY...Mostly sunny. Highs in the lower 60s. Northeast
winds 15 to 20 mph.
.WEDNESDAY NIGHT...Mostly cloudy. Lows in the lower 50s.
Northeast winds 15 to 20 mph.
.THURSDAY...Partly sunny with a chance of showers. Highs in the
mid 60s. Northeast winds 15 to 20 mph.
$$
MAZ022-180800-
Barnstable MA-
Including the cities of Chatham, Falmouth, and Provincetown
407 PM EDT Thu Sep 17 2026
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Pcldy Pcldy Mclear
Precip Type Tstms Showers None None
Chance Precip (%) 60 50
Chance of Thunder (%) 20 0 0 0
Temp (24h trend) 65 (+3) 74 (+2) 51 64
RH % (24h trend) 100 (0) 59 (-9) 89 54
20ft Wnd AM(mph) NW 7 G18 NE 8
20ft Wnd PM(mph) S 6 N 7 G17 N 6 G18 NE 5
Precip Amount 0.14 0.04 0.00 0.00
Precip Duration 3 1
Precip Begin 8 PM Continuing
Precip End Continuing 10 AM
Mixing Hgt (ft-AGL) 440 3160 560 3700
Transport Wnd (kts) SW 16 N 11 N 8 NE 13
Vent Rate (kt-ft) 7040 34760 4480 48100
Max ADI Early 14 Gen Poor 29 Fair 15 Gen Poor 39 Fair
Max ADI Late 16 Gen Poor 32 Fair 21 Fair 51 Gen Good
Max LVORI Early 5 4 3 2
Max LVORI Late 5 4 3 2
Min Vsby Early 10 3 Fog 10 10
Min Vsby Late 6 Fog 10 10 10
Sunshine Hours N/A N/A N/A N/A
CWR 50 40 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Partly cloudy. Lows in the mid 50s. Southeast
winds around 5 mph.
.SUNDAY...Mostly cloudy with a chance of showers. Highs in the
mid 60s. Southeast winds 5 to 10 mph.
.SUNDAY NIGHT...Cloudy with showers likely. Lows in the upper
50s. East winds 5 to 10 mph.
.MONDAY THROUGH TUESDAY...Mostly cloudy with a chance of showers.
Lows in the upper 50s. Highs in the mid 60s. Northeast winds
10 to 15 mph.
.TUESDAY NIGHT...Mostly cloudy. Lows in the mid 50s. Northeast
winds 15 to 20 mph.
.WEDNESDAY AND WEDNESDAY NIGHT...Partly cloudy. Lows in the mid
50s. Highs in the lower 60s. Northeast winds 15 to 20 mph.
.THURSDAY...Partly sunny with a chance of showers. Highs in the
lower 60s. Northeast winds 15 to 20 mph.
$$
MAZ023-180800-
Dukes MA-
Including the city of Vineyard Haven
407 PM EDT Thu Sep 17 2026
Tonight Fri Fri Night Sat
Cloud Cover Pcldy Pcldy Pcldy Mclear
Precip Type Tstms Showers None None
Chance Precip (%) 60 50
Chance of Thunder (%) 20 0 0 0
Temp (24h trend) 65 (+2) 76 (+4) 51 64
RH % (24h trend) 100 (0) 62 (-8) 90 54
20ft Wnd AM(mph) NW 8 G17 NE 9
20ft Wnd PM(mph) S 7 N 8 N 7 NE 6
Precip Amount 0.08 0.03 0.00 0.00
Precip Duration 2 1
Precip Begin 10 PM Continuing
Precip End Continuing 10 AM
Mixing Hgt (ft-AGL) 610 2170 610 3980
Transport Wnd (kts) S 13 N 10 N 8 NE 10
Vent Rate (kt-ft) 7930 21700 4880 39800
Max ADI Early 16 Gen Poor 26 Fair 17 Gen Poor 42 Gen Good
Max ADI Late 19 Gen Poor 26 Fair 25 Fair 44 Gen Good
Max LVORI Early 5 3 3 2
Max LVORI Late 5 3 3 2
Min Vsby Early 10 10 10 10
Min Vsby Late 6 Fog 10 10 10
Sunshine Hours N/A N/A N/A N/A
CWR 40 30 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Partly cloudy. Lows in the mid 50s. Southeast
winds 5 to 10 mph.
.SUNDAY...Mostly cloudy with a chance of showers. Highs in the
upper 60s. Southeast winds 5 to 10 mph.
.SUNDAY NIGHT...Cloudy with showers likely. Lows in the upper
50s. Southeast winds 10 to 15 mph.
.MONDAY THROUGH TUESDAY...Mostly cloudy with a chance of showers.
Lows in the upper 50s. Highs in the mid 60s. Northeast winds
15 to 20 mph.
.TUESDAY NIGHT...Breezy. Mostly cloudy. Lows in the mid 50s.
Northeast winds 15 to 25 mph.
.WEDNESDAY AND WEDNESDAY NIGHT...Windy. Partly cloudy. Lows in
the mid 50s. Highs in the lower 60s. Northeast winds 20 to
30 mph.
.THURSDAY...Breezy. Partly sunny with a chance of showers. Highs
in the mid 60s. Northeast winds 15 to 25 mph.
$$
MAZ024-180800-
Nantucket MA-
Including the city of Nantucket
407 PM EDT Thu Sep 17 2026
Tonight Fri Fri Night Sat
Cloud Cover Pcldy Pcldy Pcldy Pcldy
Precip Type Tstms Showers None None
Chance Precip (%) 60 50
Chance of Thunder (%) 20 0 0 0
Temp (24h trend) 65 (+1) 71 (0) 54 63
RH % (24h trend) 100 (0) 78 (0) 90 60
20ft Wnd AM(mph) W 10 G18 NE 11 G18
20ft Wnd PM(mph) S 7 N 10 G17 N 8 G18 NE 8
Precip Amount 0.07 0.04 0.00 0.00
Precip Duration 2 1
Precip Begin 12 AM Continuing
Precip End Continuing 11 AM
Mixing Hgt (ft-AGL) 520 1320 680 3510
Transport Wnd (kts) S 12 W 17 N 10 NE 15
Vent Rate (kt-ft) 6240 22440 6800 52650
Max ADI Early 15 Gen Poor 4 Very Poor 25 Fair 16 Gen Poor
Max ADI Late 20 Gen Poor 18 Gen Poor 28 Fair 40 Fair
Max LVORI Early 5 7 3 3
Max LVORI Late 5 7 3 3
Min Vsby Early 10 6 Fog 10 10
Min Vsby Late 6 Fog 10 10 10
Sunshine Hours N/A N/A N/A N/A
CWR 40 40 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Partly cloudy. Lows in the upper 50s. East
winds around 5 mph.
.SUNDAY...Mostly cloudy with a chance of showers. Highs in the
upper 60s. Southeast winds 5 to 10 mph.
.SUNDAY NIGHT...Cloudy with showers likely. Lows around 60. East
winds 10 to 15 mph.
.MONDAY...Mostly cloudy with showers likely. Highs in the mid
60s. Northeast winds 15 to 20 mph.
.MONDAY NIGHT AND TUESDAY...Mostly cloudy. A chance of showers.
Lows in the upper 50s. Highs in the lower 60s. Northeast winds
15 to 20 mph.
.TUESDAY NIGHT...Windy. Mostly cloudy. Lows in the upper 50s.
Northeast winds 20 to 30 mph.
.WEDNESDAY AND WEDNESDAY NIGHT...Windy. Partly cloudy. Lows in
the upper 50s. Highs in the lower 60s. Northeast winds 20 to
30 mph.
.THURSDAY...Breezy. Partly sunny with a chance of showers. Highs
in the lower 60s. Northeast winds 15 to 25 mph.
$$
.OUTLOOK 8 TO 14 DAYS...
Temperatures near normal. Precipitation above normal.
$$
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