Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Boston, MA
Issued by NWS Boston, MA
763
FNUS51 KBOX 200808
FWFBOX
Fire Weather Planning Forecast for Southern New England
National Weather Service Boston/Norton MA
407 AM EDT Sun Sep 20 2026
.DISCUSSION...
Dry and cool conditions continue through tonight. Rain moves in
Sunday afternoon. This is expected to be a wetting rain, but not
a flooding rain.
Minimum relative humidity values range between 60 and 75 percent
tomorrow, with even higher values possible out towards the
Berkshires.
.Outlook...Monday through Friday...
Rain may continue into Monday with a low chance for showers
Tuesday. Cooler than normal temperatures continue through the
week. There is a chance for strong NE winds later this week as a
coastal storm could approach the region.
MAZ015-202000-
Suffolk MA-
Including the city of Boston
407 AM EDT Sun Sep 20 2026
Today Tonight Mon
Cloud Cover Mcldy Mcldy Pcldy
Precip Type Showers Showers None
Chance Precip (%) 80 80 20
Chance of Thunder (%) 0 0 0
Temp (24h trend) 62 (-1) 53 (+2) 66
RH % (24h trend) 69 (+24) 100 (+4) 67
20ft Wnd AM(mph) Lgt/Var N 9 G17
20ft Wnd PM(mph) SE 5 Lgt/Var NE 8 G17
Precip Amount 0.18 0.25 0.00
Precip Duration 5 8
Precip Begin 11 AM Continuing
Precip End Continuing 6 AM
Mixing Hgt (ft-AGL) 2790 440 3820
Transport Wnd (kts) S 9 SE 10 NE 12
Vent Rate (kt-ft) 25110 4400 45840
Max ADI Early 23 Fair 8 Poor 14 Gen Poor
Max ADI Late 1 Very Poor 15 Gen Poor 37 Fair
Max LVORI Early 8 8 4
Max LVORI Late 8 8 4
Min Vsby Early 9 2 Fog 7
Min Vsby Late 2 Fog 2 Fog 9
Sunshine Hours N/A N/A N/A
CWR 70 70 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.MONDAY NIGHT...Mostly cloudy. Lows in the lower 50s. Northeast
winds 10 to 15 mph.
.TUESDAY THROUGH THURSDAY...Breezy. Mostly cloudy. Lows in the
lower 50s. Highs in the lower 60s. Northeast winds 20 to 25 mph.
.THURSDAY NIGHT THROUGH SATURDAY...Breezy. Mostly cloudy with a
chance of showers. Lows in the lower 50s. Highs in the lower 60s.
North winds 15 to 25 mph.
$$
MAZ016-202000-
Eastern Norfolk MA-
Including the city of Quincy
407 AM EDT Sun Sep 20 2026
Today Tonight Mon
Cloud Cover Mcldy Mcldy Pcldy
Precip Type Showers Showers None
Chance Precip (%) 90 80 20
Chance of Thunder (%) 0 0 0
Temp (24h trend) 63 (0) 52 (+1) 65
RH % (24h trend) 65 (+20) 100 (+11) 67
20ft Wnd AM(mph) Lgt/Var N 9 G18
20ft Wnd PM(mph) SE 5 Lgt/Var NE 9 G17
Precip Amount 0.16 0.21 0.00
Precip Duration 5 8
Precip Begin 11 AM Continuing
Precip End Continuing 6 AM
Mixing Hgt (ft-AGL) 2560 430 3340
Transport Wnd (kts) S 9 SE 9 NE 14
Vent Rate (kt-ft) 23040 3870 46760
Max ADI Early 23 Fair 8 Poor 15 Gen Poor
Max ADI Late 1 Very Poor 14 Gen Poor 40 Fair
Max LVORI Early 7 9 4
Max LVORI Late 7 9 4
Min Vsby Early 9 2 Fog 6 Fog
Min Vsby Late 3 Fog 2 Fog 9
Sunshine Hours N/A N/A N/A
CWR 70 70 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.MONDAY NIGHT...Mostly cloudy. Lows in the lower 50s. Northeast
winds around 5 mph, increasing to 10 to 15 mph after midnight.
.TUESDAY THROUGH THURSDAY...Breezy. Mostly cloudy. Lows in the
lower 50s. Highs in the lower 60s. Northeast winds 20 to 25 mph.
.THURSDAY NIGHT THROUGH SATURDAY...Breezy. Mostly cloudy with a
chance of showers. Lows in the lower 50s. Highs in the mid 60s.
North winds 15 to 25 mph.
$$
MAZ013-202000-
Western Norfolk MA-
Including the cities of Foxborough and Norwood
407 AM EDT Sun Sep 20 2026
Today Tonight Mon
Cloud Cover Mcldy Mcldy Pcldy
Precip Type Showers Showers None
Chance Precip (%) 90 80 20
Chance of Thunder (%) 0 0 0
Temp (24h trend) 61 (-4) 52 (+6) 65
RH % (24h trend) 72 (+30) 100 (0) 67
20ft Wnd AM(mph) Lgt/Var N 7
20ft Wnd PM(mph) Lgt/Var Lgt/Var NE 6
Precip Amount 0.19 0.19 0.00
Precip Duration 5 7
Precip Begin 10 AM Continuing
Precip End Continuing 6 AM
Mixing Hgt (ft-AGL) 2070 440 3750
Transport Wnd (kts) S 9 SE 6 NE 13
Vent Rate (kt-ft) 18630 2640 48750
Max ADI Early 19 Gen Poor 5 Very Poor 13 Gen Poor
Max ADI Late 1 Very Poor 13 Gen Poor 64 Good
Max LVORI Early 10 9 6
Max LVORI Late 10 9 6
Min Vsby Early 9 2 Fog 6 Fog
Min Vsby Late 2 Fog 2 Fog 9
Sunshine Hours N/A N/A N/A
CWR 80 70 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.MONDAY NIGHT...Mostly cloudy. Lows in the upper 40s. Northeast
winds 5 to 10 mph.
.TUESDAY THROUGH THURSDAY...Mostly cloudy. Lows in the upper 40s.
Highs in the lower 60s. Northeast winds 10 to 15 mph.
.THURSDAY NIGHT THROUGH SATURDAY...Mostly cloudy with a chance of
showers. Lows in the upper 40s. Highs in the mid 60s. North winds
10 to 15 mph.
$$
MAZ014-202000-
Southeast Middlesex MA-
Including the city of Cambridge
407 AM EDT Sun Sep 20 2026
Today Tonight Mon
Cloud Cover Mcldy Mcldy Pcldy
Precip Type Showers Showers None
Chance Precip (%) 80 90 10
Chance of Thunder (%) 0 0 0
Temp (24h trend) 61 (-4) 52 (+4) 66
RH % (24h trend) 70 (+29) 100 (+4) 65
20ft Wnd AM(mph) Lgt/Var N 7
20ft Wnd PM(mph) Lgt/Var Lgt/Var NE 6
Precip Amount 0.17 0.25 0.00
Precip Duration 5 7
Precip Begin 11 AM Continuing
Precip End Continuing 6 AM
Mixing Hgt (ft-AGL) 2410 450 4320
Transport Wnd (kts) S 9 E 6 NE 11
Vent Rate (kt-ft) 21690 2700 47520
Max ADI Early 20 Gen Poor 6 Very Poor 12 Poor
Max ADI Late 1 Very Poor 13 Gen Poor 63 Good
Max LVORI Early 8 9 3
Max LVORI Late 8 9 3
Min Vsby Early 9 1 Fog 7
Min Vsby Late 2 Fog 2 Fog 9
Sunshine Hours N/A N/A N/A
CWR 70 70 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.MONDAY NIGHT...Mostly cloudy. Lows around 50. Northeast winds
5 to 10 mph.
.TUESDAY THROUGH THURSDAY...Mostly cloudy. Lows around 50. Highs
in the lower 60s. Northeast winds 10 to 15 mph.
.THURSDAY NIGHT THROUGH SATURDAY...Mostly cloudy with a chance of
showers. Lows around 50. Highs in the mid 60s. North winds 10 to
15 mph.
$$
MAZ007-202000-
Eastern Essex MA-
Including the city of Gloucester
407 AM EDT Sun Sep 20 2026
Today Tonight Mon
Cloud Cover Mcldy Cloudy Pcldy
Precip Type Showers Showers None
Chance Precip (%) 80 90 20
Chance of Thunder (%) 0 0 0
Temp (24h trend) 63 (+1) 51 (+2) 66
RH % (24h trend) 65 (+22) 100 (0) 63
20ft Wnd AM(mph) Lgt/Var N 9 G19
20ft Wnd PM(mph) SE 6 E 5 NE 7 G17
Precip Amount 0.12 0.33 0.00
Precip Duration 4 8
Precip Begin 11 AM Continuing
Precip End Continuing 6 AM
Mixing Hgt (ft-AGL) 2940 410 3600
Transport Wnd (kts) S 10 SE 10 NE 12
Vent Rate (kt-ft) 29400 4100 43200
Max ADI Early 28 Fair 9 Poor 36 Fair
Max ADI Late 1 Very Poor 14 Gen Poor 37 Fair
Max LVORI Early 7 9 4
Max LVORI Late 7 9 4
Min Vsby Early 9 2 Fog 7
Min Vsby Late 3 Fog 2 Fog 9
Sunshine Hours N/A N/A N/A
CWR 60 80 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.MONDAY NIGHT...Mostly cloudy. Lows around 50. Northeast winds
10 to 15 mph.
.TUESDAY THROUGH THURSDAY...Breezy. Mostly cloudy. Lows in the
lower 50s. Highs in the lower 60s. Northeast winds 20 to 25 mph.
.THURSDAY NIGHT THROUGH SATURDAY...Windy. Mostly cloudy with a
chance of showers. Lows in the lower 50s. Highs in the lower 60s.
Northeast winds 20 to 30 mph.
$$
MAZ006-202000-
Western Essex MA-
Including the city of Lawrence
407 AM EDT Sun Sep 20 2026
Today Tonight Mon
Cloud Cover Mcldy Cloudy Pcldy
Precip Type Showers Showers None
Chance Precip (%) 80 90 10
Chance of Thunder (%) 0 0 0
Temp (24h trend) 60 (-5) 49 (+3) 66
RH % (24h trend) 70 (+32) 100 (0) 63
20ft Wnd AM(mph) Lgt/Var N 5
20ft Wnd PM(mph) Lgt/Var Lgt/Var NE 5
Precip Amount 0.12 0.29 0.00
Precip Duration 4 7
Precip Begin 11 AM Continuing
Precip End Continuing 6 AM
Mixing Hgt (ft-AGL) 2500 410 4450
Transport Wnd (kts) S 8 E 7 NE 10
Vent Rate (kt-ft) 20000 2870 44500
Max ADI Early 21 Fair 5 Very Poor 50 Gen Good
Max ADI Late 1 Very Poor 11 Poor 57 Gen Good
Max LVORI Early 9 9 3
Max LVORI Late 9 9 3
Min Vsby Early 9 1 Fog 7
Min Vsby Late 2 Fog 2 Fog 9
Sunshine Hours N/A N/A N/A
CWR 70 80 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.MONDAY NIGHT...Mostly cloudy. Lows in the upper 40s. Northeast
winds 10 to 15 mph.
.TUESDAY THROUGH THURSDAY...Mostly cloudy. Lows in the upper 40s.
Highs in the lower 60s. Northeast winds 10 to 15 mph.
.THURSDAY NIGHT THROUGH SATURDAY...Mostly cloudy with a chance of
showers. Lows in the upper 40s. Highs in the mid 60s. North winds
10 to 15 mph.
$$
MAZ005-202000-
Central Middlesex MA-
Including the cities of Framingham and Lowell
407 AM EDT Sun Sep 20 2026
Today Tonight Mon
Cloud Cover Mcldy Cloudy Pcldy
Precip Type Showers Showers None
Chance Precip (%) 80 90 10
Chance of Thunder (%) 0 0 0
Temp (24h trend) 59 (-7) 50 (+5) 67
RH % (24h trend) 70 (+33) 100 (0) 63
20ft Wnd AM(mph) Lgt/Var N 5
20ft Wnd PM(mph) Lgt/Var Lgt/Var NE 5
Precip Amount 0.18 0.25 0.00
Precip Duration 5 7
Precip Begin 10 AM Continuing
Precip End Continuing 6 AM
Mixing Hgt (ft-AGL) 1960 420 4980
Transport Wnd (kts) S 8 NE 6 NE 11
Vent Rate (kt-ft) 15680 2520 54780
Max ADI Early 17 Gen Poor 11 Poor 46 Gen Good
Max ADI Late 11 Poor 8 Poor 66 Good
Max LVORI Early 9 9 3
Max LVORI Late 9 9 3
Min Vsby Early 9 1 Fog 7
Min Vsby Late 2 Fog 2 Fog 9
Sunshine Hours N/A N/A N/A
CWR 70 70 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.MONDAY NIGHT...Mostly cloudy. Lows in the upper 40s. Northeast
winds 10 to 15 mph.
.TUESDAY THROUGH THURSDAY...Mostly cloudy. Lows in the upper 40s.
Highs in the lower 60s. Northeast winds 10 to 15 mph.
.THURSDAY NIGHT THROUGH SATURDAY...Mostly cloudy with a chance of
showers. Lows in the upper 40s. Highs in the mid 60s. North winds
10 to 15 mph.
$$
MAZ012-202000-
Southern Worcester MA-
Including the cities of Milford and Worcester
407 AM EDT Sun Sep 20 2026
Today Tonight Mon
Cloud Cover Mcldy Mcldy Pcldy
Precip Type Showers Showers None
Chance Precip (%) 90 80 10
Chance of Thunder (%) 0 0 0
Temp (24h trend) 59 (-7) 50 (+3) 66
RH % (24h trend) 80 (+42) 100 (0) 68
20ft Wnd AM(mph) Lgt/Var N 7
20ft Wnd PM(mph) Lgt/Var Lgt/Var NE 6
Precip Amount 0.28 0.22 0.00
Precip Duration 6 6
Precip Begin 9 AM Continuing
Precip End Continuing 6 AM
Mixing Hgt (ft-AGL) 1660 440 4450
Transport Wnd (kts) S 9 E 6 NE 11
Vent Rate (kt-ft) 14940 2640 48950
Max ADI Early 13 Gen Poor 4 Very Poor 33 Fair
Max ADI Late 1 Very Poor 12 Poor 64 Good
Max LVORI Early 10 9 3
Max LVORI Late 10 9 3
Min Vsby Early 8 1 Fog 6 Fog
Min Vsby Late 2 Fog 2 Fog 9
Sunshine Hours N/A N/A N/A
CWR 90 80 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.MONDAY NIGHT...Mostly cloudy. Lows in the mid 40s. Northeast
winds 10 to 15 mph.
.TUESDAY THROUGH THURSDAY...Mostly cloudy. Lows in the mid 40s.
Highs in the lower 60s. Northeast winds 10 to 15 mph.
.THURSDAY NIGHT THROUGH SATURDAY...Mostly cloudy with a chance of
showers. Lows in the upper 40s. Highs in the lower 60s. North
winds 10 to 15 mph.
$$
MAZ004-202000-
Northern Worcester MA-
Including the cities of Barre and Fitchburg
407 AM EDT Sun Sep 20 2026
Today Tonight Mon
Cloud Cover Mcldy Mcldy Pcldy
Precip Type Showers Showers None
Chance Precip (%) 90 90 10
Chance of Thunder (%) 0 0 0
Temp (24h trend) 57 (-8) 46 (0) 66
RH % (24h trend) 80 (+43) 100 (0) 60
20ft Wnd AM(mph) Lgt/Var N 6
20ft Wnd PM(mph) Lgt/Var Lgt/Var NE 5
Precip Amount 0.27 0.20 0.00
Precip Duration 6 5
Precip Begin 9 AM Continuing
Precip End Continuing 4 AM
Mixing Hgt (ft-AGL) 1550 430 5170
Transport Wnd (kts) SE 9 NE 6 NE 10
Vent Rate (kt-ft) 13950 2580 51700
Max ADI Early 8 Poor 4 Very Poor 36 Fair
Max ADI Late 1 Very Poor 9 Poor 65 Good
Max LVORI Early 10 9 3
Max LVORI Late 10 9 3
Min Vsby Early 8 1 Fog 7
Min Vsby Late 1 Fog 2 Fog 9
Sunshine Hours N/A N/A N/A
CWR 80 80 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.MONDAY NIGHT...Mostly cloudy. Lows in the mid 40s. Northeast
winds 10 to 15 mph.
.TUESDAY THROUGH THURSDAY...Mostly cloudy. Lows in the mid 40s.
Highs in the upper 50s. Northeast winds 10 to 15 mph.
.THURSDAY NIGHT THROUGH SATURDAY...Mostly cloudy with a chance of
showers. Lows in the mid 40s. Highs in the lower 60s. North winds
10 to 15 mph.
$$
MAZ026-202000-
Northern Middlesex MA-
Including the city of Ayer
407 AM EDT Sun Sep 20 2026
Today Tonight Mon
Cloud Cover Mcldy Mcldy Pcldy
Precip Type Showers Showers None
Chance Precip (%) 90 80 10
Chance of Thunder (%) 0 0 0
Temp (24h trend) 58 (-8) 47 (+2) 68
RH % (24h trend) 80 (+43) 100 (+4) 63
20ft Wnd AM(mph) Lgt/Var Lgt/Var
20ft Wnd PM(mph) Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.21 0.24 0.00
Precip Duration 5 6
Precip Begin 9 AM Continuing
Precip End Continuing 5 AM
Mixing Hgt (ft-AGL) 1670 420 5340
Transport Wnd (kts) S 8 N 6 N 10
Vent Rate (kt-ft) 13360 2520 53400
Max ADI Early 12 Poor 9 Poor 46 Gen Good
Max ADI Late 13 Gen Poor 8 Poor 69 Good
Max LVORI Early 9 9 3
Max LVORI Late 9 9 3
Min Vsby Early 9 1 Fog 7
Min Vsby Late 1 Fog 2 Fog 9
Sunshine Hours N/A N/A N/A
CWR 80 80 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.MONDAY NIGHT...Mostly cloudy. Lows in the mid 40s. Northeast
winds 10 to 15 mph.
.TUESDAY...Mostly cloudy. Highs around 60. Northeast winds around
5 mph.
.TUESDAY NIGHT...Partly cloudy. Lows in the lower 40s. Northeast
winds 5 to 10 mph.
.WEDNESDAY...Partly sunny. Highs in the lower 60s. Northeast
winds 5 to 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the lower 40s.
Northeast winds 5 to 10 mph.
.THURSDAY...Partly sunny. Highs in the lower 60s. Northeast winds
5 to 10 mph.
.THURSDAY NIGHT THROUGH SATURDAY...Mostly cloudy with a chance of
showers. Lows in the mid 40s. Highs in the lower 60s. North winds
5 to 10 mph.
$$
MAZ002-202000-
Western Franklin MA-
Including the city of Charlemont
407 AM EDT Sun Sep 20 2026
Today Tonight Mon
Cloud Cover Mcldy Mcldy Pcldy
Precip Type Showers Showers None
Chance Precip (%) 100 80
Chance of Thunder (%) 0 0 0
Temp (24h trend) 54 (-9) 45 (0) 64
RH % (24h trend) 80 (+45) 100 (0) 58
20ft Wnd AM(mph) Lgt/Var N 5
20ft Wnd PM(mph) Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.50 0.20 0.00
Precip Duration 8 3
Precip Begin 7 AM Continuing
Precip End Continuing 2 AM
Mixing Hgt (ft-AGL) 1290 420 4530
Transport Wnd (kts) S 9 N 7 N 10
Vent Rate (kt-ft) 11610 2940 45300
Max ADI Early 7 Poor 7 Poor 37 Fair
Max ADI Late 10 Poor 7 Poor 60 Gen Good
Max LVORI Early 10 9 3
Max LVORI Late 10 9 3
Min Vsby Early 4 Fog 0 Fog 7
Min Vsby Late 0 Fog 2 Fog 9
Sunshine Hours N/A N/A N/A
CWR 90 80 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.MONDAY NIGHT...Mostly cloudy. Lows in the lower 40s. Northeast
winds around 5 mph.
.TUESDAY THROUGH THURSDAY...Mostly cloudy. Lows in the lower 40s.
Highs in the upper 50s. Northeast winds 5 to 10 mph.
.THURSDAY NIGHT THROUGH SATURDAY...Mostly cloudy with a chance of
showers. Lows in the mid 40s. Highs in the lower 60s. North winds
10 to 15 mph.
$$
MAZ003-202000-
Eastern Franklin MA-
Including the cities of Greenfield and Orange
407 AM EDT Sun Sep 20 2026
Today Tonight Mon
Cloud Cover Mcldy Mcldy Pcldy
Precip Type Showers Showers None
Chance Precip (%) 100 80
Chance of Thunder (%) 0 0 0
Temp (24h trend) 57 (-9) 47 (+2) 67
RH % (24h trend) 83 (+49) 100 (0) 56
20ft Wnd AM(mph) Lgt/Var N 7
20ft Wnd PM(mph) Lgt/Var Lgt/Var N 5
Precip Amount 0.32 0.15 0.00
Precip Duration 7 4
Precip Begin 7 AM Continuing
Precip End Continuing 2 AM
Mixing Hgt (ft-AGL) 1450 420 5200
Transport Wnd (kts) S 8 N 9 N 10
Vent Rate (kt-ft) 11600 3780 52000
Max ADI Early 7 Poor 4 Very Poor 29 Fair
Max ADI Late 4 Very Poor 8 Poor 65 Good
Max LVORI Early 10 9 3
Max LVORI Late 10 9 3
Min Vsby Early 6 Fog 1 Fog 7
Min Vsby Late 1 Fog 2 Fog 9
Sunshine Hours N/A N/A N/A
CWR 90 80 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.MONDAY NIGHT...Mostly cloudy. Lows in the mid 40s. Northeast
winds 5 to 10 mph.
.TUESDAY THROUGH THURSDAY...Mostly cloudy. Lows in the mid 40s.
Highs in the lower 60s. Northeast winds 10 to 15 mph.
.THURSDAY NIGHT THROUGH SATURDAY...Mostly cloudy with a chance of
showers. Lows in the mid 40s. Highs in the mid 60s. North winds
15 to 20 mph.
$$
MAZ008-202000-
Western Hampshire MA-
Including the city of Chesterfield
407 AM EDT Sun Sep 20 2026
Today Tonight Mon
Cloud Cover Mcldy Mcldy Pcldy
Precip Type Showers Showers None
Chance Precip (%) 100 80
Chance of Thunder (%) 0 0 0
Temp (24h trend) 56 (-8) 46 (0) 64
RH % (24h trend) 86 (+49) 100 (0) 61
20ft Wnd AM(mph) Lgt/Var N 6
20ft Wnd PM(mph) Lgt/Var Lgt/Var NE 5
Precip Amount 0.50 0.19 0.00
Precip Duration 8 4
Precip Begin 7 AM Continuing
Precip End Continuing 2 AM
Mixing Hgt (ft-AGL) 1320 430 4460
Transport Wnd (kts) SE 10 NE 5 N 10
Vent Rate (kt-ft) 13200 2150 44600
Max ADI Early 7 Poor 8 Poor 31 Fair
Max ADI Late 10 Poor 8 Poor 58 Gen Good
Max LVORI Early 10 9 3
Max LVORI Late 10 9 3
Min Vsby Early 4 Fog 0 Fog 7
Min Vsby Late 0 Fog 2 Fog 9
Sunshine Hours N/A N/A N/A
CWR 90 80 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.MONDAY NIGHT...Mostly cloudy. Lows in the lower 40s. Northeast
winds 5 to 10 mph.
.TUESDAY THROUGH THURSDAY...Mostly cloudy. Lows in the lower 40s.
Highs in the upper 50s. Northeast winds 5 to 10 mph.
.THURSDAY NIGHT THROUGH SATURDAY...Mostly cloudy with a chance of
showers. Lows in the mid 40s. Highs in the lower 60s. North winds
10 to 15 mph.
$$
MAZ010-202000-
Eastern Hampshire MA-
Including the cities of Amherst and Northampton
407 AM EDT Sun Sep 20 2026
Today Tonight Mon
Cloud Cover Mcldy Mcldy Pcldy
Precip Type Showers Showers None
Chance Precip (%) 100 90
Chance of Thunder (%) 0 0 0
Temp (24h trend) 58 (-9) 49 (+2) 68
RH % (24h trend) 80 (+44) 100 (0) 59
20ft Wnd AM(mph) Lgt/Var N 8
20ft Wnd PM(mph) Lgt/Var Lgt/Var N 6
Precip Amount 0.34 0.17 0.00
Precip Duration 8 4
Precip Begin 7 AM Continuing
Precip End Continuing 2 AM
Mixing Hgt (ft-AGL) 1370 410 5310
Transport Wnd (kts) SE 8 N 10 NE 9
Vent Rate (kt-ft) 10960 4100 47790
Max ADI Early 7 Poor 5 Very Poor 30 Fair
Max ADI Late 1 Very Poor 10 Poor 65 Good
Max LVORI Early 10 9 3
Max LVORI Late 10 9 3
Min Vsby Early 5 Fog 1 Fog 6 Fog
Min Vsby Late 1 Fog 2 Fog 9
Sunshine Hours N/A N/A N/A
CWR 90 80 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.MONDAY NIGHT...Mostly cloudy. Lows in the mid 40s. Northeast
winds 5 to 10 mph.
.TUESDAY THROUGH THURSDAY...Mostly cloudy. Lows in the mid 40s.
Highs in the lower 60s. Northeast winds 10 to 15 mph.
.THURSDAY NIGHT THROUGH SATURDAY...Mostly cloudy with a chance of
showers. Lows in the mid 40s. Highs in the mid 60s. North winds
10 to 15 mph.
$$
MAZ009-202000-
Western Hampden MA-
Including the city of Blandford
407 AM EDT Sun Sep 20 2026
Today Tonight Mon
Cloud Cover Mcldy Mcldy Pcldy
Precip Type Showers Showers None
Chance Precip (%) 100 90
Chance of Thunder (%) 0 0 0
Temp (24h trend) 57 (-8) 49 (+2) 65
RH % (24h trend) 83 (+46) 100 (0) 63
20ft Wnd AM(mph) Lgt/Var N 6
20ft Wnd PM(mph) Lgt/Var Lgt/Var NE 5
Precip Amount 0.48 0.21 0.00
Precip Duration 8 4
Precip Begin 7 AM Continuing
Precip End Continuing 2 AM
Mixing Hgt (ft-AGL) 1230 420 4470
Transport Wnd (kts) SE 10 NE 5 NE 10
Vent Rate (kt-ft) 12300 2100 44700
Max ADI Early 7 Poor 7 Poor 34 Fair
Max ADI Late 10 Poor 9 Poor 59 Gen Good
Max LVORI Early 10 9 3
Max LVORI Late 10 9 3
Min Vsby Early 4 Fog 0 Fog 7
Min Vsby Late 0 Fog 2 Fog 9
Sunshine Hours N/A N/A N/A
CWR 90 80 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.MONDAY NIGHT...Mostly cloudy. Lows in the mid 40s. Northeast
winds 5 to 10 mph.
.TUESDAY THROUGH THURSDAY...Mostly cloudy. Lows in the mid 40s.
Highs in the upper 50s. Northeast winds 10 to 15 mph.
.THURSDAY NIGHT THROUGH SATURDAY...Mostly cloudy with a chance of
showers. Lows in the mid 40s. Highs in the lower 60s. North winds
10 to 15 mph.
$$
MAZ011-202000-
Eastern Hampden MA-
Including the city of Springfield
407 AM EDT Sun Sep 20 2026
Today Tonight Mon
Cloud Cover Mcldy Mcldy Pcldy
Precip Type Showers Showers None
Chance Precip (%) 100 90
Chance of Thunder (%) 0 0 0
Temp (24h trend) 59 (-8) 50 (+1) 68
RH % (24h trend) 80 (+45) 100 (0) 59
20ft Wnd AM(mph) Lgt/Var N 8
20ft Wnd PM(mph) SE 5 Lgt/Var NE 7
Precip Amount 0.34 0.19 0.00
Precip Duration 8 5
Precip Begin 7 AM Continuing
Precip End Continuing 3 AM
Mixing Hgt (ft-AGL) 1410 410 5180
Transport Wnd (kts) SE 9 N 9 NE 10
Vent Rate (kt-ft) 12690 3690 51800
Max ADI Early 6 Very Poor 5 Very Poor 10 Poor
Max ADI Late 1 Very Poor 10 Poor 63 Good
Max LVORI Early 10 9 3
Max LVORI Late 10 9 3
Min Vsby Early 5 Fog 1 Fog 6 Fog
Min Vsby Late 1 Fog 2 Fog 9
Sunshine Hours N/A N/A N/A
CWR 90 80 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.MONDAY NIGHT...Mostly cloudy. Lows in the mid 40s. Northeast
winds 5 to 10 mph.
.TUESDAY THROUGH THURSDAY...Mostly cloudy. Lows in the mid 40s.
Highs in the lower 60s. Northeast winds 10 to 15 mph.
.THURSDAY NIGHT THROUGH SATURDAY...Mostly cloudy with a chance of
showers. Lows in the upper 40s. Highs in the mid 60s. North winds
10 to 15 mph.
$$
CTZ002-202000-
Hartford CT-
Including the cities of Hartford and Windsor Locks
407 AM EDT Sun Sep 20 2026
Today Tonight Mon
Cloud Cover Mcldy Mcldy Pcldy
Precip Type Showers Showers None
Chance Precip (%) 100 90 10
Chance of Thunder (%) 0 0 0
Temp (24h trend) 62 (-6) 51 (0) 68
RH % (24h trend) 77 (+40) 100 (0) 63
20ft Wnd AM(mph) Lgt/Var N 9
20ft Wnd PM(mph) SE 5 Lgt/Var NE 7
Precip Amount 0.41 0.21 0.00
Precip Duration 8 5
Precip Begin 7 AM Continuing
Precip End Continuing 4 AM
Mixing Hgt (ft-AGL) 1370 420 4840
Transport Wnd (kts) SE 11 E 6 NE 10
Vent Rate (kt-ft) 15070 2520 48400
Max ADI Early 8 Poor 4 Very Poor 11 Poor
Max ADI Late 1 Very Poor 11 Poor 63 Good
Max LVORI Early 10 9 4
Max LVORI Late 10 9 4
Min Vsby Early 3 Fog 1 Fog 7
Min Vsby Late 1 Fog 3 Fog 9
Sunshine Hours N/A N/A N/A
CWR 90 80 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.MONDAY NIGHT...Mostly cloudy. Lows in the upper 40s. Northeast
winds 5 to 10 mph.
.TUESDAY THROUGH THURSDAY...Mostly cloudy. Lows in the upper 40s.
Highs in the lower 60s. Northeast winds 10 to 15 mph.
.THURSDAY NIGHT THROUGH SATURDAY...Mostly cloudy with a chance of
showers. Lows in the upper 40s. Highs in the mid 60s. North winds
10 to 15 mph.
$$
CTZ003-202000-
Tolland CT-
Including the cities of Union and Vernon
407 AM EDT Sun Sep 20 2026
Today Tonight Mon
Cloud Cover Mcldy Mcldy Pcldy
Precip Type Showers Showers None
Chance Precip (%) 100 90 10
Chance of Thunder (%) 0 0 0
Temp (24h trend) 62 (-5) 52 (+2) 67
RH % (24h trend) 77 (+40) 100 (+4) 63
20ft Wnd AM(mph) Lgt/Var N 8
20ft Wnd PM(mph) SE 5 Lgt/Var NE 7
Precip Amount 0.35 0.18 0.00
Precip Duration 7 5
Precip Begin 8 AM Continuing
Precip End Continuing 5 AM
Mixing Hgt (ft-AGL) 1350 420 4540
Transport Wnd (kts) SE 10 NE 6 NE 10
Vent Rate (kt-ft) 13500 2520 45400
Max ADI Early 9 Poor 6 Very Poor 11 Poor
Max ADI Late 1 Very Poor 11 Poor 61 Good
Max LVORI Early 10 9 3
Max LVORI Late 10 9 3
Min Vsby Early 5 Fog 1 Fog 5 Fog
Min Vsby Late 2 Fog 2 Fog 9
Sunshine Hours N/A N/A N/A
CWR 90 80 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.MONDAY NIGHT...Mostly cloudy. Lows in the mid 40s. Northeast
winds 5 to 10 mph.
.TUESDAY THROUGH THURSDAY...Mostly cloudy. Lows in the mid 40s.
Highs in the lower 60s. Northeast winds 10 to 15 mph.
.THURSDAY NIGHT THROUGH SATURDAY...Mostly cloudy with a chance of
showers. Lows in the upper 40s. Highs in the mid 60s. North winds
10 to 15 mph.
$$
CTZ004-202000-
Windham CT-
Including the cities of Putnam and Willimantic
407 AM EDT Sun Sep 20 2026
Today Tonight Mon
Cloud Cover Mcldy Mcldy Pcldy
Precip Type Showers Showers None
Chance Precip (%) 100 80 10
Chance of Thunder (%) 0 0 0
Temp (24h trend) 62 (-5) 52 (+4) 66
RH % (24h trend) 80 (+41) 100 (0) 70
20ft Wnd AM(mph) Lgt/Var N 8
20ft Wnd PM(mph) SE 5 Lgt/Var NE 7
Precip Amount 0.34 0.20 0.00
Precip Duration 7 6
Precip Begin 9 AM Continuing
Precip End Continuing 6 AM
Mixing Hgt (ft-AGL) 1490 440 4120
Transport Wnd (kts) SE 9 NE 5 NE 11
Vent Rate (kt-ft) 13410 2200 45320
Max ADI Early 13 Gen Poor 6 Very Poor 12 Poor
Max ADI Late 1 Very Poor 12 Poor 61 Good
Max LVORI Early 10 9 6
Max LVORI Late 10 9 6
Min Vsby Early 7 2 Fog 4 Fog
Min Vsby Late 2 Fog 2 Fog 9
Sunshine Hours N/A N/A N/A
CWR 90 80 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.MONDAY NIGHT...Mostly cloudy. Lows in the upper 40s. Northeast
winds 5 to 10 mph.
.TUESDAY THROUGH THURSDAY...Mostly cloudy. Lows in the upper 40s.
Highs in the lower 60s. Northeast winds 10 to 15 mph.
.THURSDAY NIGHT THROUGH SATURDAY...Mostly cloudy with a chance of
showers. Lows in the upper 40s. Highs in the mid 60s. North winds
15 to 20 mph.
$$
RIZ001-202000-
Northwest Providence RI-
Including the cities of Foster and Smithfield
407 AM EDT Sun Sep 20 2026
Today Tonight Mon
Cloud Cover Mcldy Mcldy Pcldy
Precip Type Showers Showers None
Chance Precip (%) 90 80 20
Chance of Thunder (%) 0 0 0
Temp (24h trend) 61 (-5) 52 (+4) 64
RH % (24h trend) 78 (+36) 100 (0) 70
20ft Wnd AM(mph) Lgt/Var N 9
20ft Wnd PM(mph) Lgt/Var Lgt/Var NE 7
Precip Amount 0.30 0.24 0.00
Precip Duration 6 7
Precip Begin 10 AM Continuing
Precip End Continuing 6 AM
Mixing Hgt (ft-AGL) 1780 450 3910
Transport Wnd (kts) SE 8 E 6 NE 13
Vent Rate (kt-ft) 14240 2700 50830
Max ADI Early 14 Gen Poor 7 Poor 13 Gen Poor
Max ADI Late 1 Very Poor 12 Poor 64 Good
Max LVORI Early 10 9 6
Max LVORI Late 10 9 6
Min Vsby Early 9 2 Fog 6 Fog
Min Vsby Late 2 Fog 2 Fog 9
Sunshine Hours N/A N/A N/A
CWR 90 70 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.MONDAY NIGHT...Mostly cloudy. Lows in the upper 40s. Northeast
winds 5 to 10 mph.
.TUESDAY THROUGH THURSDAY...Mostly cloudy. Lows in the upper 40s.
Highs in the lower 60s. Northeast winds 10 to 15 mph.
.THURSDAY NIGHT THROUGH SATURDAY...Mostly cloudy with a chance of
showers. Lows in the upper 40s. Highs in the lower 60s. North
winds 10 to 15 mph.
$$
RIZ002-202000-
Southeast Providence RI-
Including the city of Providence
407 AM EDT Sun Sep 20 2026
Today Tonight Mon
Cloud Cover Mcldy Mcldy Pcldy
Precip Type Showers Showers None
Chance Precip (%) 90 80 20
Chance of Thunder (%) 0 0 0
Temp (24h trend) 62 (-5) 54 (+3) 65
RH % (24h trend) 75 (+32) 100 (+7) 70
20ft Wnd AM(mph) Lgt/Var N 9
20ft Wnd PM(mph) SE 5 Lgt/Var NE 8
Precip Amount 0.29 0.29 0.00
Precip Duration 6 7
Precip Begin 10 AM Continuing
Precip End Continuing 6 AM
Mixing Hgt (ft-AGL) 2100 440 3500
Transport Wnd (kts) S 8 SE 7 NE 14
Vent Rate (kt-ft) 16800 3080 49000
Max ADI Early 14 Gen Poor 8 Poor 13 Gen Poor
Max ADI Late 1 Very Poor 12 Poor 41 Gen Good
Max LVORI Early 9 9 6
Max LVORI Late 9 9 6
Min Vsby Early 9 2 Fog 7
Min Vsby Late 2 Fog 2 Fog 9
Sunshine Hours N/A N/A N/A
CWR 90 70 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.MONDAY NIGHT...Mostly cloudy. Lows in the upper 40s. Northeast
winds 5 to 10 mph.
.TUESDAY THROUGH THURSDAY...Mostly cloudy. Lows in the upper 40s.
Highs in the lower 60s. Northeast winds 15 to 20 mph.
.THURSDAY NIGHT THROUGH SATURDAY...Mostly cloudy with a chance of
showers. Lows in the upper 40s. Highs in the mid 60s. North winds
15 to 20 mph.
$$
RIZ003-202000-
Western Kent RI-
Including the cities of Coventry and West Greenwich
407 AM EDT Sun Sep 20 2026
Today Tonight Mon
Cloud Cover Mcldy Mcldy Mcldy
Precip Type Showers Showers None
Chance Precip (%) 100 80 20
Chance of Thunder (%) 0 0 0
Temp (24h trend) 62 (-4) 54 (+4) 64
RH % (24h trend) 77 (+32) 100 (0) 72
20ft Wnd AM(mph) Lgt/Var N 10 G17
20ft Wnd PM(mph) SE 5 Lgt/Var NE 8
Precip Amount 0.32 0.33 0.00
Precip Duration 6 7
Precip Begin 9 AM Continuing
Precip End Continuing 6 AM
Mixing Hgt (ft-AGL) 2050 430 3610
Transport Wnd (kts) SE 9 NE 5 NE 13
Vent Rate (kt-ft) 18450 2150 46930
Max ADI Early 17 Gen Poor 7 Poor 12 Poor
Max ADI Late 1 Very Poor 12 Poor 53 Gen Good
Max LVORI Early 10 10 6
Max LVORI Late 10 10 6
Min Vsby Early 9 2 Fog 5 Fog
Min Vsby Late 2 Fog 2 Fog 9
Sunshine Hours N/A N/A N/A
CWR 90 70 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.MONDAY NIGHT...Mostly cloudy. Lows in the upper 40s. Northeast
winds 5 to 10 mph.
.TUESDAY THROUGH THURSDAY...Mostly cloudy. Lows in the upper 40s.
Highs in the lower 60s. Northeast winds 10 to 15 mph.
.THURSDAY NIGHT THROUGH SATURDAY...Mostly cloudy with a chance of
showers. Lows in the upper 40s. Highs in the lower 60s. North
winds 15 to 20 mph.
$$
RIZ004-202000-
Eastern Kent RI-
Including the cities of East Greenwich, Warwick, and West Warwick
407 AM EDT Sun Sep 20 2026
Today Tonight Mon
Cloud Cover Mcldy Mcldy Pcldy
Precip Type Showers Showers Showers
Chance Precip (%) 90 80 20
Chance of Thunder (%) 0 0 0
Temp (24h trend) 63 (-4) 55 (+3) 65
RH % (24h trend) 72 (+29) 100 (+7) 65
20ft Wnd AM(mph) Lgt/Var N 11 G17
20ft Wnd PM(mph) SE 6 Lgt/Var NE 9
Precip Amount 0.31 0.32 0.00
Precip Duration 6 7
Precip Begin 10 AM Continuing
Precip End Continuing 6 AM
Mixing Hgt (ft-AGL) 2310 440 3450
Transport Wnd (kts) S 10 SE 7 NE 14
Vent Rate (kt-ft) 23100 3080 48300
Max ADI Early 19 Gen Poor 8 Poor 14 Gen Poor
Max ADI Late 1 Very Poor 13 Gen Poor 41 Gen Good
Max LVORI Early 8 9 6
Max LVORI Late 8 9 6
Min Vsby Early 9 2 Fog 7
Min Vsby Late 3 Fog 2 Fog 9
Sunshine Hours N/A N/A N/A
CWR 90 70 10
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.MONDAY NIGHT...Mostly cloudy. Lows around 50. Northeast winds
5 to 10 mph.
.TUESDAY THROUGH WEDNESDAY NIGHT...Mostly cloudy. Lows around 50.
Highs in the lower 60s. Northeast winds 15 to 20 mph.
.THURSDAY THROUGH SATURDAY...Mostly cloudy with a chance of
showers. Lows around 50. Highs in the mid 60s. North winds 15 to
20 mph.
$$
RIZ005-202000-
Bristol RI-
Including the city of Bristol
407 AM EDT Sun Sep 20 2026
Today Tonight Mon
Cloud Cover Mcldy Mcldy Pcldy
Precip Type Showers Showers Showers
Chance Precip (%) 90 80 30
Chance of Thunder (%) 0 0 0
Temp (24h trend) 64 (-2) 56 (+3) 65
RH % (24h trend) 72 (+26) 100 (+11) 70
20ft Wnd AM(mph) Lgt/Var N 11 G17
20ft Wnd PM(mph) SE 6 SE 5 NE 10 G17
Precip Amount 0.26 0.31 0.01
Precip Duration 5 7 1
Precip Begin 10 AM Continuing Continuing
Precip End Continuing Continuing 10 AM
Mixing Hgt (ft-AGL) 2310 440 3480
Transport Wnd (kts) S 10 E 6 NE 14
Vent Rate (kt-ft) 23100 2640 48720
Max ADI Early 17 Gen Poor 11 Poor 14 Gen Poor
Max ADI Late 1 Very Poor 13 Gen Poor 42 Gen Good
Max LVORI Early 9 9 6
Max LVORI Late 9 9 6
Min Vsby Early 9 2 Fog 7
Min Vsby Late 3 Fog 2 Fog 9
Sunshine Hours N/A N/A N/A
CWR 80 70 20
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.MONDAY NIGHT...Partly cloudy. Lows in the lower 50s. Northeast
winds 5 to 10 mph.
.TUESDAY THROUGH WEDNESDAY NIGHT...Mostly cloudy. Lows in the
lower 50s. Highs in the lower 60s. Northeast winds 15 to 20 mph.
.THURSDAY THROUGH SATURDAY...Mostly cloudy with a chance of
showers. Lows in the lower 50s. Highs in the mid 60s. North winds
15 to 20 mph.
$$
RIZ006-202000-
Washington RI-
Including the cities of Narragansett and Westerly
407 AM EDT Sun Sep 20 2026
Today Tonight Mon
Cloud Cover Mcldy Mcldy Mcldy
Precip Type Showers Tstms Showers
Chance Precip (%) 90 80 30
Chance of Thunder (%) 0 10 0
Temp (24h trend) 66 (0) 54 (+1) 65
RH % (24h trend) 69 (+26) 100 (0) 70
20ft Wnd AM(mph) SE 5 N 11 G21
20ft Wnd PM(mph) SE 7 Lgt/Var NE 9 G20
Precip Amount 0.30 0.39 0.01
Precip Duration 6 8 1
Precip Begin 9 AM Continuing Continuing
Precip End Continuing Continuing 12 PM
Mixing Hgt (ft-AGL) 2710 430 3590
Transport Wnd (kts) SE 10 SE 6 NE 14
Vent Rate (kt-ft) 27100 2580 50260
Max ADI Early 14 Gen Poor 8 Poor 14 Gen Poor
Max ADI Late 1 Very Poor 13 Gen Poor 40 Fair
Max LVORI Early 9 9 6
Max LVORI Late 9 9 6
Min Vsby Early 9 2 Fog 6 Fog
Min Vsby Late 3 Fog 2 Fog 9
Sunshine Hours N/A N/A N/A
CWR 90 70 20
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.MONDAY NIGHT...Mostly cloudy. Lows around 50. Northeast winds
10 to 15 mph.
.TUESDAY...Mostly cloudy with a chance of showers. Highs in the
lower 60s. Northeast winds 15 to 20 mph.
.TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Breezy. Mostly cloudy.
Lows in the upper 40s. Highs in the lower 60s. Northeast winds
20 to 25 mph.
.THURSDAY THROUGH SATURDAY...Windy. Mostly cloudy with a chance
of showers. Lows in the upper 40s. Highs in the mid 60s. North
winds 20 to 30 mph.
$$
RIZ007-202000-
Newport RI-
Including the city of Newport
407 AM EDT Sun Sep 20 2026
Today Tonight Mon
Cloud Cover Mcldy Mcldy Mcldy
Precip Type Showers Showers Showers
Chance Precip (%) 90 80 30
Chance of Thunder (%) 0 0 0
Temp (24h trend) 65 (-1) 56 (+2) 65
RH % (24h trend) 70 (+27) 100 (+7) 70
20ft Wnd AM(mph) SE 6 N 13 G21
20ft Wnd PM(mph) SE 8 SE 7 NE 11 G20
Precip Amount 0.29 0.36 0.02
Precip Duration 5 8 1
Precip Begin 10 AM Continuing Continuing
Precip End Continuing Continuing 12 PM
Mixing Hgt (ft-AGL) 2710 450 3530
Transport Wnd (kts) SE 11 SE 9 NE 14
Vent Rate (kt-ft) 29810 4050 49420
Max ADI Early 25 Fair 12 Poor 15 Gen Poor
Max ADI Late 1 Very Poor 13 Gen Poor 37 Fair
Max LVORI Early 9 8 6
Max LVORI Late 9 8 6
Min Vsby Early 9 2 Fog 5 Fog
Min Vsby Late 3 Fog 2 Fog 9
Sunshine Hours N/A N/A N/A
CWR 80 70 20
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.MONDAY NIGHT...Mostly cloudy. Lows in the mid 50s. Northeast
winds 10 to 15 mph.
.TUESDAY...Mostly cloudy with a chance of showers. Highs in the
lower 60s. Northeast winds 15 to 20 mph.
.TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Breezy. Mostly cloudy.
Lows in the lower 50s. Highs in the lower 60s. Northeast winds
20 to 25 mph.
.THURSDAY THROUGH SATURDAY...Breezy. Mostly cloudy with a chance
of showers. Lows in the lower 50s. Highs in the mid 60s. North
winds 15 to 25 mph.
$$
RIZ008-202000-
Block Island RI-
Including the city of New Shoreham
407 AM EDT Sun Sep 20 2026
Today Tonight Mon
Cloud Cover Mcldy Mcldy Mcldy
Precip Type Showers Tstms Showers
Chance Precip (%) 90 90 40
Chance of Thunder (%) 0 20 0
Temp (24h trend) 67 (+3) 60 (+2) 66
RH % (24h trend) 70 (+16) 100 (+20) 75
20ft Wnd AM(mph) SE 9 NE 15 G23
20ft Wnd PM(mph) SE 10 SE 8 NE 14 G23
Precip Amount 0.24 0.48 0.08
Precip Duration 5 9 1
Precip Begin 10 AM Continuing Continuing
Precip End Continuing Continuing 12 PM
Mixing Hgt (ft-AGL) 3050 1100 3330
Transport Wnd (kts) SE 13 NW 10 NE 17
Vent Rate (kt-ft) 39650 11000 56610
Max ADI Early 34 Fair 19 Gen Poor 19 Gen Poor
Max ADI Late 1 Very Poor 17 Gen Poor 1 Very Poor
Max LVORI Early 7 7 6
Max LVORI Late 7 7 6
Min Vsby Early 9 3 Fog 7
Min Vsby Late 3 Fog 3 Fog 9
Sunshine Hours N/A N/A N/A
CWR 70 80 30
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.MONDAY NIGHT...Mostly cloudy. Lows in the upper 50s. Northeast
winds 10 to 15 mph.
.TUESDAY...Mostly cloudy with a chance of showers. Highs in the
lower 60s. Northeast winds 15 to 20 mph.
.TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Breezy. Mostly cloudy.
Lows in the upper 50s. Highs in the mid 60s. Northeast winds
15 to 25 mph.
.THURSDAY THROUGH SATURDAY...Windy. Mostly cloudy with a chance
of showers. Lows in the upper 50s. Highs in the mid 60s. North
winds 20 to 30 mph.
$$
MAZ017-202000-
Northern Bristol MA-
Including the city of Taunton
407 AM EDT Sun Sep 20 2026
Today Tonight Mon
Cloud Cover Mcldy Mcldy Pcldy
Precip Type Showers Showers None
Chance Precip (%) 90 80 20
Chance of Thunder (%) 0 0 0
Temp (24h trend) 62 (-4) 52 (+6) 64
RH % (24h trend) 75 (+32) 100 (0) 70
20ft Wnd AM(mph) Lgt/Var N 8 G17
20ft Wnd PM(mph) Lgt/Var Lgt/Var NE 7
Precip Amount 0.23 0.22 0.00
Precip Duration 5 7
Precip Begin 10 AM Continuing
Precip End Continuing 6 AM
Mixing Hgt (ft-AGL) 2000 420 3430
Transport Wnd (kts) S 8 SE 8 NE 13
Vent Rate (kt-ft) 16000 3360 44590
Max ADI Early 14 Gen Poor 7 Poor 13 Gen Poor
Max ADI Late 1 Very Poor 12 Poor 50 Gen Good
Max LVORI Early 10 9 6
Max LVORI Late 10 9 6
Min Vsby Early 9 2 Fog 5 Fog
Min Vsby Late 3 Fog 2 Fog 9
Sunshine Hours N/A N/A N/A
CWR 80 70 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.MONDAY NIGHT...Partly cloudy. Lows in the upper 40s. Northeast
winds around 5 mph.
.TUESDAY THROUGH WEDNESDAY NIGHT...Mostly cloudy. Lows in the
upper 40s. Highs in the lower 60s. Northeast winds 10 to 15 mph.
.THURSDAY THROUGH SATURDAY...Mostly cloudy with a chance of
showers. Lows in the upper 40s. Highs in the mid 60s. North winds
10 to 15 mph.
$$
MAZ018-202000-
Western Plymouth MA-
Including the city of Brockton
407 AM EDT Sun Sep 20 2026
Today Tonight Mon
Cloud Cover Mcldy Mcldy Pcldy
Precip Type Showers Showers Showers
Chance Precip (%) 90 70 30
Chance of Thunder (%) 0 0 0
Temp (24h trend) 63 (-1) 52 (+6) 64
RH % (24h trend) 67 (+22) 100 (0) 67
20ft Wnd AM(mph) Lgt/Var N 9 G19
20ft Wnd PM(mph) Lgt/Var Lgt/Var NE 9 G19
Precip Amount 0.18 0.23 0.01
Precip Duration 5 7 0
Precip Begin 11 AM Continuing Continuing
Precip End Continuing Continuing 9 AM
Mixing Hgt (ft-AGL) 2480 410 3290
Transport Wnd (kts) S 10 SE 8 NE 15
Vent Rate (kt-ft) 24800 3280 49350
Max ADI Early 23 Fair 7 Poor 13 Gen Poor
Max ADI Late 1 Very Poor 12 Poor 42 Gen Good
Max LVORI Early 9 9 6
Max LVORI Late 9 9 6
Min Vsby Early 9 2 Fog 4 Fog
Min Vsby Late 3 Fog 2 Fog 9
Sunshine Hours N/A N/A N/A
CWR 80 60 10
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.MONDAY NIGHT...Partly cloudy. Lows in the upper 40s. Northeast
winds 5 to 10 mph.
.TUESDAY THROUGH WEDNESDAY NIGHT...Mostly cloudy. Lows in the
upper 40s. Highs in the lower 60s. Northeast winds 10 to 15 mph.
.THURSDAY THROUGH SATURDAY...Mostly cloudy with a chance of
showers. Lows in the upper 40s. Highs in the mid 60s. North winds
15 to 20 mph.
$$
MAZ019-202000-
Eastern Plymouth MA-
Including the city of Plymouth
407 AM EDT Sun Sep 20 2026
Today Tonight Mon
Cloud Cover Mcldy Mcldy Pcldy
Precip Type Showers Showers Showers
Chance Precip (%) 80 70 30
Chance of Thunder (%) 0 0 0
Temp (24h trend) 65 (+2) 52 (+1) 65
RH % (24h trend) 63 (+17) 100 (0) 67
20ft Wnd AM(mph) SE 5 N 12 G23
20ft Wnd PM(mph) SE 6 SE 5 NE 11 G22
Precip Amount 0.15 0.22 0.02
Precip Duration 4 7 1
Precip Begin 11 AM Continuing Continuing
Precip End Continuing Continuing 11 AM
Mixing Hgt (ft-AGL) 2930 430 2980
Transport Wnd (kts) S 10 SE 9 NE 16
Vent Rate (kt-ft) 29300 3870 47680
Max ADI Early 28 Fair 9 Poor 1 Very Poor
Max ADI Late 1 Very Poor 14 Gen Poor 35 Fair
Max LVORI Early 7 9 6
Max LVORI Late 7 9 6
Min Vsby Early 9 2 Fog 4 Fog
Min Vsby Late 3 Fog 3 Fog 9
Sunshine Hours N/A N/A N/A
CWR 70 60 20
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.MONDAY NIGHT...Partly cloudy. Lows in the lower 50s. Northeast
winds 5 to 10 mph, increasing to 15 to 20 mph after midnight.
.TUESDAY THROUGH WEDNESDAY NIGHT...Breezy. Mostly cloudy. Lows in
the lower 50s. Highs in the lower 60s. Northeast winds 20 to
25 mph.
.THURSDAY THROUGH SATURDAY...Windy. Mostly cloudy with a chance
of showers. Lows in the lower 50s. Highs in the lower 60s.
Northeast winds 20 to 30 mph.
$$
MAZ020-202000-
Southern Bristol MA-
Including the cities of Fall River and New Bedford
407 AM EDT Sun Sep 20 2026
Today Tonight Mon
Cloud Cover Mcldy Mcldy Pcldy
Precip Type Showers Showers Showers
Chance Precip (%) 90 80 30
Chance of Thunder (%) 0 0 0
Temp (24h trend) 66 (+1) 53 (+3) 66
RH % (24h trend) 69 (+24) 100 (0) 72
20ft Wnd AM(mph) SE 5 N 11 G21
20ft Wnd PM(mph) SE 7 SE 5 NE 10 G21
Precip Amount 0.24 0.27 0.01
Precip Duration 5 8 1
Precip Begin 11 AM Continuing Continuing
Precip End Continuing Continuing 12 PM
Mixing Hgt (ft-AGL) 2720 410 3420
Transport Wnd (kts) S 10 SE 10 NE 15
Vent Rate (kt-ft) 27200 4100 51300
Max ADI Early 25 Fair 9 Poor 13 Gen Poor
Max ADI Late 1 Very Poor 11 Poor 44 Gen Good
Max LVORI Early 8 9 6
Max LVORI Late 8 9 6
Min Vsby Early 9 2 Fog 4 Fog
Min Vsby Late 3 Fog 2 Fog 9
Sunshine Hours N/A N/A N/A
CWR 80 60 20
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.MONDAY NIGHT...Partly cloudy. Lows around 50. Northeast winds
10 to 15 mph.
.TUESDAY THROUGH WEDNESDAY NIGHT...Breezy. Mostly cloudy. Lows
around 50. Highs in the lower 60s. Northeast winds 15 to 25 mph.
.THURSDAY THROUGH SATURDAY...Windy. Mostly cloudy with a chance
of showers. Lows around 50. Highs in the mid 60s. North winds
20 to 30 mph.
$$
MAZ021-202000-
Southern Plymouth MA-
Including the city of Mattapoisett
407 AM EDT Sun Sep 20 2026
Today Tonight Mon
Cloud Cover Mcldy Mcldy Pcldy
Precip Type Showers Showers Showers
Chance Precip (%) 90 70 40
Chance of Thunder (%) 0 0 0
Temp (24h trend) 66 (+1) 53 (+5) 66
RH % (24h trend) 72 (+26) 100 (0) 73
20ft Wnd AM(mph) Lgt/Var N 11 G21
20ft Wnd PM(mph) SE 6 Lgt/Var NE 10 G21
Precip Amount 0.18 0.23 0.02
Precip Duration 5 8 1
Precip Begin 11 AM Continuing Continuing
Precip End Continuing Continuing 12 PM
Mixing Hgt (ft-AGL) 2740 410 3070
Transport Wnd (kts) S 10 SE 10 NE 16
Vent Rate (kt-ft) 27400 4100 49120
Max ADI Early 26 Fair 8 Poor 1 Very Poor
Max ADI Late 1 Very Poor 10 Poor 43 Gen Good
Max LVORI Early 8 9 6
Max LVORI Late 8 9 6
Min Vsby Early 9 2 Fog 4 Fog
Min Vsby Late 4 Fog 2 Fog 9
Sunshine Hours N/A N/A N/A
CWR 70 50 20
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.MONDAY NIGHT...Partly cloudy. Lows around 50. Northeast winds
10 to 15 mph.
.TUESDAY THROUGH WEDNESDAY NIGHT...Breezy. Mostly cloudy. Lows
around 50. Highs in the mid 60s. Northeast winds 20 to 25 mph.
.THURSDAY THROUGH SATURDAY...Breezy. Mostly cloudy with a chance
of showers. Lows around 50. Highs in the mid 60s. North winds
15 to 25 mph.
$$
MAZ022-202000-
Barnstable MA-
Including the cities of Chatham, Falmouth, and Provincetown
407 AM EDT Sun Sep 20 2026
Today Tonight Mon
Cloud Cover Mcldy Mcldy Pcldy
Precip Type Showers Showers Showers
Chance Precip (%) 80 70 40
Chance of Thunder (%) 0 0 0
Temp (24h trend) 65 (+1) 54 (+3) 65
RH % (24h trend) 67 (+22) 100 (0) 70
20ft Wnd AM(mph) SE 5 NE 11 G22
20ft Wnd PM(mph) SE 7 SE 5 NE 11 G22
Precip Amount 0.13 0.21 0.05
Precip Duration 4 8 1
Precip Begin 12 PM Continuing Continuing
Precip End Continuing Continuing 1 PM
Mixing Hgt (ft-AGL) 2730 470 2900
Transport Wnd (kts) S 12 SE 9 NE 17
Vent Rate (kt-ft) 32760 4230 49300
Max ADI Early 31 Fair 12 Poor 1 Very Poor
Max ADI Late 1 Very Poor 8 Poor 37 Fair
Max LVORI Early 7 9 6
Max LVORI Late 7 9 6
Min Vsby Early 9 3 Fog 3 Fog
Min Vsby Late 5 Fog 3 Fog 8
Sunshine Hours N/A N/A N/A
CWR 60 50 30
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.MONDAY NIGHT...Partly cloudy. Lows in the mid 50s. Northeast
winds 10 to 15 mph.
.TUESDAY THROUGH WEDNESDAY NIGHT...Mostly cloudy. Lows in the mid
50s. Highs in the mid 60s. Northeast winds 15 to 20 mph.
.THURSDAY THROUGH FRIDAY...Breezy. Mostly cloudy with a chance of
showers. Lows in the mid 50s. Highs in the mid 60s. Northeast
winds 15 to 25 mph.
.FRIDAY NIGHT...Breezy. Mostly cloudy with showers likely. Lows
in the lower 50s. Northeast winds 15 to 25 mph.
.SATURDAY...Breezy. Mostly cloudy with a chance of showers. Highs
in the mid 60s. Northeast winds 15 to 25 mph.
$$
MAZ023-202000-
Dukes MA-
Including the city of Vineyard Haven
407 AM EDT Sun Sep 20 2026
Today Tonight Mon
Cloud Cover Mcldy Mcldy Mcldy
Precip Type Showers Showers Showers
Chance Precip (%) 80 80 50
Chance of Thunder (%) 0 0 0
Temp (24h trend) 67 (+3) 55 (+3) 67
RH % (24h trend) 69 (+23) 100 (+7) 73
20ft Wnd AM(mph) SE 8 NE 14 G23
20ft Wnd PM(mph) SE 9 SE 7 NE 14 G23
Precip Amount 0.15 0.32 0.07
Precip Duration 4 8 1
Precip Begin 11 AM Continuing Continuing
Precip End Continuing Continuing 2 PM
Mixing Hgt (ft-AGL) 2720 950 2900
Transport Wnd (kts) SE 12 S 10 NE 18
Vent Rate (kt-ft) 32640 9500 52200
Max ADI Early 31 Fair 19 Gen Poor 1 Very Poor
Max ADI Late 1 Very Poor 13 Gen Poor 1 Very Poor
Max LVORI Early 6 8 7
Max LVORI Late 6 8 7
Min Vsby Early 9 3 Fog 3 Fog
Min Vsby Late 5 Fog 3 Fog 8
Sunshine Hours N/A N/A N/A
CWR 60 70 30
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.MONDAY NIGHT...Mostly cloudy. Lows in the mid 50s. Northeast
winds 15 to 20 mph.
.TUESDAY...Mostly cloudy with a chance of showers. Highs in the
mid 60s. Northeast winds 15 to 20 mph.
.TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Windy. Mostly cloudy.
Lows in the mid 50s. Highs in the mid 60s. Northeast winds 20 to
30 mph.
.THURSDAY THROUGH FRIDAY...Windy. Mostly cloudy with a chance of
showers. Lows in the mid 50s. Highs in the mid 60s. Northeast
winds 20 to 30 mph.
.FRIDAY NIGHT...Windy. Mostly cloudy with showers likely. Lows in
the mid 50s. Northeast winds 20 to 30 mph.
.SATURDAY...Breezy. Mostly cloudy with a chance of showers. Highs
in the mid 60s. Northeast winds 15 to 25 mph.
$$
MAZ024-202000-
Nantucket MA-
Including the city of Nantucket
407 AM EDT Sun Sep 20 2026
Today Tonight Mon
Cloud Cover Mcldy Mcldy Mcldy
Precip Type Showers Showers Showers
Chance Precip (%) 70 80 60
Chance of Thunder (%) 0 0 0
Temp (24h trend) 66 (+3) 56 (+1) 66
RH % (24h trend) 72 (+24) 100 (+14) 78
20ft Wnd AM(mph) SE 8 NE 12 G21
20ft Wnd PM(mph) SE 9 SE 7 NE 14 G23
Precip Amount 0.08 0.27 0.08
Precip Duration 3 9 2
Precip Begin 12 PM Continuing Continuing
Precip End Continuing Continuing 2 PM
Mixing Hgt (ft-AGL) 2380 800 2820
Transport Wnd (kts) SE 12 SE 9 NE 20
Vent Rate (kt-ft) 28560 7200 56400
Max ADI Early 30 Fair 15 Gen Poor 1 Very Poor
Max ADI Late 1 Very Poor 13 Gen Poor 1 Very Poor
Max LVORI Early 6 8 7
Max LVORI Late 6 8 7
Min Vsby Early 9 5 Fog 3 Fog
Min Vsby Late 6 Fog 2 Fog 7
Sunshine Hours N/A N/A N/A
CWR 50 70 30
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.MONDAY NIGHT...Mostly cloudy. Lows in the upper 50s. Northeast
winds 15 to 20 mph.
.TUESDAY AND TUESDAY NIGHT...Breezy. Mostly cloudy with a chance
of showers. Lows in the upper 50s. Highs in the lower 60s.
Northeast winds 15 to 25 mph.
.WEDNESDAY AND WEDNESDAY NIGHT...Windy. Mostly cloudy. Lows in
the mid 50s. Highs in the lower 60s. Northeast winds 20 to
30 mph.
.THURSDAY...Windy. Mostly cloudy with a chance of showers. Highs
in the mid 60s. Northeast winds 20 to 30 mph.
.THURSDAY NIGHT...Windy. Cloudy with a chance of showers. Lows in
the mid 50s. Northeast winds 25 to 35 mph.
.FRIDAY AND FRIDAY NIGHT...Windy. Mostly cloudy with showers
likely. Lows in the mid 50s. Highs in the mid 60s. Northeast
winds 25 to 35 mph.
.SATURDAY...Windy. Mostly cloudy with a chance of showers. Highs
in the mid 60s. Northeast winds 20 to 30 mph.
$$
.OUTLOOK 8 TO 14 DAYS...
Temperatures above normal. Precipitation near normal.
$$
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