Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Boston, MA
Issued by NWS Boston, MA
108
FNUS51 KBOX 180807
FWFBOX
Fire Weather Planning Forecast for Southern New England
National Weather Service Boston/Norton MA
407 AM EDT Fri Sep 18 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.
MAZ015-182000-
Suffolk MA-
Including the city of Boston
407 AM EDT Fri Sep 18 2026
Today Tonight Sat
Cloud Cover Mclear Mclear Pcldy
Precip Type None None None
Chance Precip (%)
Chance of Thunder (%) 0 0 0
Temp (24h trend) 79 (0) 50 (-16) 65
RH % (24h trend) 50 (-8) 74 (-26) 44
20ft Wnd AM(mph) NW 5 N 5
20ft Wnd PM(mph) NW 7 N 7 E 5
Precip Amount 0.00 0.00 0.00
Precip Duration
Precip Begin
Precip End
Mixing Hgt (ft-AGL) 4760 440 3800
Transport Wnd (kts) N 11 N 13 NE 7
Vent Rate (kt-ft) 52360 5720 26600
Max ADI Early 29 Fair 19 Gen Poor 43 Gen Good
Max ADI Late 30 Fair 8 Poor 39 Fair
Max LVORI Early 2 3 2
Max LVORI Late 2 3 2
Min Vsby Early 4 Fog 9 9
Min Vsby Late 9 9 9
Sunshine Hours N/A N/A N/A
CWR 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...Mostly cloudy with showers likely. Patchy fog.
Lows in the mid 50s. East winds 5 to 10 mph.
.MONDAY THROUGH TUESDAY NIGHT...Mostly cloudy with a chance of
showers. Lows in the mid 50s. Highs in the lower 60s. Northeast
winds 15 to 20 mph.
.WEDNESDAY...Breezy. Partly sunny. Highs in the lower 60s.
Northeast winds 15 to 25 mph.
.WEDNESDAY NIGHT AND THURSDAY...Mostly cloudy. A chance of
showers. Lows in the lower 50s. Highs in the lower 60s. Northeast
winds 15 to 20 mph.
$$
MAZ016-182000-
Eastern Norfolk MA-
Including the city of Quincy
407 AM EDT Fri Sep 18 2026
Today Tonight Sat
Cloud Cover Mclear Pcldy Pcldy
Precip Type None None None
Chance Precip (%)
Chance of Thunder (%) 0 0 0
Temp (24h trend) 79 (-2) 50 (-15) 65
RH % (24h trend) 50 (-12) 74 (-26) 46
20ft Wnd AM(mph) NW 5 N 5
20ft Wnd PM(mph) N 6 N 7 NE 5
Precip Amount 0.00 0.00 0.00
Precip Duration
Precip Begin
Precip End
Mixing Hgt (ft-AGL) 5120 410 3660
Transport Wnd (kts) N 11 N 11 NE 8
Vent Rate (kt-ft) 56320 4510 29280
Max ADI Early 35 Fair 22 Fair 47 Gen Good
Max ADI Late 66 Good 9 Poor 45 Gen Good
Max LVORI Early 1 3 2
Max LVORI Late 1 3 2
Min Vsby Early 4 Fog 9 9
Min Vsby Late 9 9 9
Sunshine Hours N/A N/A N/A
CWR 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Partly cloudy. Lows around 50. Southeast winds
around 5 mph.
.SUNDAY...Mostly cloudy with showers likely. Highs in the mid
60s. Southeast winds around 5 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely. Patchy fog.
Lows in the mid 50s. East winds around 5 mph.
.MONDAY THROUGH TUESDAY NIGHT...Mostly cloudy with a chance of
showers. Lows in the mid 50s. Highs in the lower 60s. Northeast
winds 15 to 20 mph.
.WEDNESDAY...Partly sunny. Highs in the lower 60s. Northeast
winds 15 to 20 mph.
.WEDNESDAY NIGHT AND THURSDAY...Mostly cloudy. A chance of
showers. Lows in the lower 50s. Highs in the lower 60s. Northeast
winds 15 to 20 mph.
$$
MAZ013-182000-
Western Norfolk MA-
Including the cities of Foxborough and Norwood
407 AM EDT Fri Sep 18 2026
Today Tonight Sat
Cloud Cover Mclear Pcldy Pcldy
Precip Type None None None
Chance Precip (%)
Chance of Thunder (%) 0 0 0
Temp (24h trend) 79 (-1) 47 (-18) 66
RH % (24h trend) 50 (-10) 80 (-20) 43
20ft Wnd AM(mph) Lgt/Var Lgt/Var
20ft Wnd PM(mph) N 5 N 5 Lgt/Var
Precip Amount 0.00 0.00 0.00
Precip Duration
Precip Begin
Precip End
Mixing Hgt (ft-AGL) 6030 420 4310
Transport Wnd (kts) N 13 N 8 N 6
Vent Rate (kt-ft) 78390 3360 25860
Max ADI Early 56 Gen Good 52 Gen Good 43 Gen Good
Max ADI Late 100 Good 6 Very Poor 42 Gen Good
Max LVORI Early 1 4 2
Max LVORI Late 1 4 2
Min Vsby Early 4 Fog 9 9
Min Vsby Late 9 9 9
Sunshine Hours N/A N/A N/A
CWR 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...Mostly cloudy with showers likely. Patchy fog.
Lows in the lower 50s. East winds around 5 mph.
.MONDAY THROUGH TUESDAY NIGHT...Mostly cloudy with a chance of
showers. Lows in the lower 50s. Highs in the lower 60s. Northeast
winds 5 to 10 mph.
.WEDNESDAY...Partly sunny. Highs in the lower 60s. Northeast
winds 10 to 15 mph.
.WEDNESDAY NIGHT AND THURSDAY...Mostly cloudy with a chance of
showers. Lows in the upper 40s. Highs in the lower 60s. Northeast
winds 10 to 15 mph.
$$
MAZ014-182000-
Southeast Middlesex MA-
Including the city of Cambridge
407 AM EDT Fri Sep 18 2026
Today Tonight Sat
Cloud Cover Mclear Pcldy Pcldy
Precip Type None None None
Chance Precip (%)
Chance of Thunder (%) 0 0 0
Temp (24h trend) 78 (-3) 49 (-16) 66
RH % (24h trend) 50 (-5) 77 (-23) 43
20ft Wnd AM(mph) NW 5 Lgt/Var
20ft Wnd PM(mph) NW 7 N 6 Lgt/Var
Precip Amount 0.00 0.00 0.00
Precip Duration
Precip Begin
Precip End
Mixing Hgt (ft-AGL) 6300 410 4460
Transport Wnd (kts) N 15 N 9 NE 6
Vent Rate (kt-ft) 94500 3690 26760
Max ADI Early 46 Gen Good 40 Fair 39 Fair
Max ADI Late 56 Gen Good 7 Poor 41 Gen Good
Max LVORI Early 1 3 2
Max LVORI Late 1 3 2
Min Vsby Early 3 Fog 9 9
Min Vsby Late 9 9 9
Sunshine Hours N/A N/A N/A
CWR 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Partly cloudy. Lows around 50. Southeast winds
around 5 mph.
.SUNDAY...Mostly cloudy with showers likely. Highs in the mid
60s. Southeast winds around 5 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely. Patchy fog.
Lows in the mid 50s. East winds around 5 mph, becoming northeast
after midnight.
.MONDAY THROUGH TUESDAY NIGHT...Mostly cloudy with a chance of
showers. Lows in the mid 50s. Highs in the lower 60s. Northeast
winds 10 to 15 mph.
.WEDNESDAY...Partly sunny. Highs in the lower 60s. Northeast
winds 10 to 15 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows around 50. Northeast winds
10 to 15 mph.
.THURSDAY...Partly sunny with a chance of showers. Highs in the
lower 60s. Northeast winds 10 to 15 mph.
$$
MAZ007-182000-
Eastern Essex MA-
Including the city of Gloucester
407 AM EDT Fri Sep 18 2026
Today Tonight Sat
Cloud Cover Mclear Pcldy Pcldy
Precip Type None None None
Chance Precip (%)
Chance of Thunder (%) 0 0 0
Temp (24h trend) 77 (+2) 48 (-16) 64
RH % (24h trend) 48 (-10) 80 (-20) 43
20ft Wnd AM(mph) NW 5 N 5
20ft Wnd PM(mph) NW 6 NW 6 Lgt/Var
Precip Amount 0.00 0.00 0.00
Precip Duration
Precip Begin
Precip End
Mixing Hgt (ft-AGL) 4570 410 3750
Transport Wnd (kts) NW 11 N 12 NE 7
Vent Rate (kt-ft) 50270 4920 26250
Max ADI Early 24 Fair 15 Gen Poor 43 Gen Good
Max ADI Late 34 Fair 11 Poor 39 Fair
Max LVORI Early 2 3 2
Max LVORI Late 2 3 2
Min Vsby Early 3 Fog 8 9
Min Vsby Late 8 9 9
Sunshine Hours N/A N/A N/A
CWR 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 a chance of showers. Highs in the
mid 60s. South winds 5 to 10 mph.
.SUNDAY NIGHT...Showers. Patchy fog. 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...Partly cloudy. Lows in the lower 50s. Northeast
winds 10 to 15 mph.
.TUESDAY THROUGH WEDNESDAY...Mostly cloudy. Lows in the lower
50s. Highs in the lower 60s. Northeast winds 15 to 20 mph.
.WEDNESDAY NIGHT...Partly 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.
$$
MAZ006-182000-
Western Essex MA-
Including the city of Lawrence
407 AM EDT Fri Sep 18 2026
Today Tonight Sat
Cloud Cover Mclear Pcldy Pcldy
Precip Type None None None
Chance Precip (%)
Chance of Thunder (%) 0 0 0
Temp (24h trend) 77 (0) 46 (-18) 65
RH % (24h trend) 50 (-10) 80 (-20) 41
20ft Wnd AM(mph) Lgt/Var Lgt/Var
20ft Wnd PM(mph) NW 6 NW 5 Lgt/Var
Precip Amount 0.00 0.00 0.00
Precip Duration
Precip Begin
Precip End
Mixing Hgt (ft-AGL) 6060 410 4370
Transport Wnd (kts) NW 17 N 8 N 5
Vent Rate (kt-ft) 103020 3280 21850
Max ADI Early 54 Gen Good 51 Gen Good 37 Fair
Max ADI Late 105 Very Good5 Very Poor 37 Fair
Max LVORI Early 1 4 2
Max LVORI Late 1 4 2
Min Vsby Early 3 Fog 9 9
Min Vsby Late 9 9 9
Sunshine Hours N/A N/A N/A
CWR 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Partly cloudy. Lows in the upper 40s. South
winds around 5 mph.
.SUNDAY...Mostly cloudy with a chance of showers. Highs in the
mid 60s. South winds around 5 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely. Patchy fog.
Lows in the lower 50s. East winds around 5 mph, becoming
northeast after midnight.
.MONDAY...Partly sunny with a chance of showers. Highs in the mid
60s. Northeast winds around 5 mph.
.MONDAY NIGHT...Partly cloudy. Lows in the upper 40s. Northeast
winds 5 to 10 mph.
.TUESDAY THROUGH WEDNESDAY...Mostly cloudy. Lows in the upper
40s. Highs around 60. Northeast winds 10 to 15 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the upper 40s.
Northeast winds 5 to 10 mph.
.THURSDAY...Partly sunny with a chance of showers. Highs in the
lower 60s. Northeast winds 5 to 10 mph.
$$
MAZ005-182000-
Central Middlesex MA-
Including the cities of Framingham and Lowell
407 AM EDT Fri Sep 18 2026
Today Tonight Sat
Cloud Cover Mclear Pcldy Pcldy
Precip Type None None None
Chance Precip (%)
Chance of Thunder (%) 0 0 0
Temp (24h trend) 78 (-2) 46 (-18) 67
RH % (24h trend) 48 (-12) 80 (-20) 40
20ft Wnd AM(mph) Lgt/Var Lgt/Var
20ft Wnd PM(mph) NW 5 N 5 Lgt/Var
Precip Amount 0.00 0.00 0.00
Precip Duration
Precip Begin
Precip End
Mixing Hgt (ft-AGL) 6060 410 4510
Transport Wnd (kts) N 15 N 9 NE 4
Vent Rate (kt-ft) 90900 3690 18040
Max ADI Early 58 Gen Good 53 Gen Good 37 Fair
Max ADI Late 104 Very Good5 Very Poor 34 Fair
Max LVORI Early 1 4 2
Max LVORI Late 1 4 2
Min Vsby Early 3 Fog 9 9
Min Vsby Late 9 9 9
Sunshine Hours N/A N/A N/A
CWR 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...Showers. Patchy fog. 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...Mostly cloudy. Lows in the upper 40s. Northeast
winds 5 to 10 mph.
.TUESDAY AND TUESDAY NIGHT...Mostly cloudy with a chance of
showers. Lows in the upper 40s. Highs around 60. Northeast winds
5 to 10 mph.
.WEDNESDAY...Partly sunny. Highs in the lower 60s. Northeast
winds 10 to 15 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the upper 40s.
Northeast winds 5 to 10 mph.
.THURSDAY...Partly sunny with a chance of showers. Highs in the
lower 60s. Northeast winds 5 to 10 mph.
$$
MAZ012-182000-
Southern Worcester MA-
Including the cities of Milford and Worcester
407 AM EDT Fri Sep 18 2026
Today Tonight Sat
Cloud Cover Mclear Pcldy Pcldy
Precip Type None None None
Chance Precip (%)
Chance of Thunder (%) 0 0 0
Temp (24h trend) 77 (-1) 46 (-18) 66
RH % (24h trend) 50 (-14) 83 (-17) 43
20ft Wnd AM(mph) Lgt/Var Lgt/Var
20ft Wnd PM(mph) N 6 N 5 Lgt/Var
Precip Amount 0.00 0.00 0.00
Precip Duration
Precip Begin
Precip End
Mixing Hgt (ft-AGL) 5910 420 4270
Transport Wnd (kts) N 13 N 9 NW 5
Vent Rate (kt-ft) 76830 3780 21350
Max ADI Early 53 Gen Good 44 Gen Good 35 Fair
Max ADI Late 93 Good 7 Poor 34 Fair
Max LVORI Early 1 4 2
Max LVORI Late 1 4 2
Min Vsby Early 4 Fog 9 9
Min Vsby Late 9 9 9
Sunshine Hours N/A N/A N/A
CWR 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Partly cloudy. Lows in the upper 40s. Southeast
winds around 5 mph.
.SUNDAY...Mostly cloudy with showers likely. Highs in the lower
60s. Southeast winds around 5 mph.
.SUNDAY NIGHT...Showers. Patchy fog. Lows in the lower 50s. East
winds around 5 mph, becoming northeast after midnight.
.MONDAY AND MONDAY NIGHT...Mostly cloudy. A chance of showers.
Lows in the lower 50s. Highs in the mid 60s. Northeast winds 5 to
10 mph.
.TUESDAY AND TUESDAY NIGHT...Mostly cloudy with a chance of
showers. Lows in the upper 40s. Highs in the upper 50s. Northeast
winds 10 to 15 mph.
.WEDNESDAY AND WEDNESDAY NIGHT...Mostly cloudy. Lows in the upper
40s. Highs in the lower 60s. Northeast winds 10 to 15 mph.
.THURSDAY...Partly sunny with a chance of showers. Highs in the
lower 60s. Northeast winds 10 to 15 mph.
$$
MAZ004-182000-
Northern Worcester MA-
Including the cities of Barre and Fitchburg
407 AM EDT Fri Sep 18 2026
Today Tonight Sat
Cloud Cover Mclear Pcldy Pcldy
Precip Type None None None
Chance Precip (%)
Chance of Thunder (%) 0 0 0
Temp (24h trend) 76 (0) 42 (-20) 66
RH % (24h trend) 51 (-9) 86 (-14) 38
20ft Wnd AM(mph) Lgt/Var Lgt/Var
20ft Wnd PM(mph) NW 7 N 5 Lgt/Var
Precip Amount 0.00 0.00 0.00
Precip Duration
Precip Begin
Precip End
Mixing Hgt (ft-AGL) 5570 420 4150
Transport Wnd (kts) N 14 N 9 NW 6
Vent Rate (kt-ft) 77980 3780 24900
Max ADI Early 49 Gen Good 24 Fair 32 Fair
Max ADI Late 52 Gen Good 6 Very Poor 35 Fair
Max LVORI Early 2 4 2
Max LVORI Late 2 4 2
Min Vsby Early 2 Fog 9 9
Min Vsby Late 9 9 9
Sunshine Hours N/A N/A N/A
CWR 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Partly cloudy. Lows in the mid 40s. Southeast
winds around 5 mph.
.SUNDAY...Showers. Patchy fog. Highs in the lower 60s. Southeast
winds around 5 mph.
.SUNDAY NIGHT...Showers. Patchy fog. Lows around 50. East winds
around 5 mph, becoming northeast after midnight.
.MONDAY AND MONDAY NIGHT...Mostly cloudy. A chance of showers.
Lows in the upper 40s. Highs in the lower 60s. Northeast winds
10 to 15 mph.
.TUESDAY AND TUESDAY NIGHT...Mostly cloudy with a chance of
showers. Lows in the mid 40s. Highs in the upper 50s. Northeast
winds 10 to 15 mph.
.WEDNESDAY AND WEDNESDAY NIGHT...Mostly cloudy. Lows in the mid
40s. Highs in the upper 50s. Northeast winds 10 to 15 mph.
.THURSDAY...Partly sunny with a chance of showers. Highs around
60. Northeast winds 10 to 15 mph.
$$
MAZ026-182000-
Northern Middlesex MA-
Including the city of Ayer
407 AM EDT Fri Sep 18 2026
Today Tonight Sat
Cloud Cover Mclear Pcldy Pcldy
Precip Type None None None
Chance Precip (%)
Chance of Thunder (%) 0 0 0
Temp (24h trend) 77 (0) 44 (-19) 67
RH % (24h trend) 51 (-15) 79 (-21) 41
20ft Wnd AM(mph) Lgt/Var Lgt/Var
20ft Wnd PM(mph) NW 6 Lgt/Var Lgt/Var
Precip Amount 0.00 0.00 0.00
Precip Duration
Precip Begin
Precip End
Mixing Hgt (ft-AGL) 5980 410 4300
Transport Wnd (kts) N 15 N 9 N 4
Vent Rate (kt-ft) 89700 3690 17200
Max ADI Early 59 Gen Good 30 Fair 34 Fair
Max ADI Late 105 Very Good5 Very Poor 35 Fair
Max LVORI Early 1 4 2
Max LVORI Late 1 4 2
Min Vsby Early 2 Fog 9 9
Min Vsby Late 9 9 9
Sunshine Hours N/A N/A N/A
CWR 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Partly cloudy. Lows in the mid 40s. South winds
around 5 mph.
.SUNDAY...Mostly cloudy with showers likely. Highs in the lower
60s. Southeast winds around 5 mph.
.SUNDAY NIGHT...Showers. Patchy fog. Lows around 50. East winds
around 5 mph, becoming north after midnight.
.MONDAY...Partly sunny with a chance of showers. Highs in the mid
60s. Northeast winds around 5 mph.
.MONDAY NIGHT...Partly cloudy. Lows in the upper 40s. Northeast
winds around 5 mph.
.TUESDAY...Mostly cloudy with a chance of showers. Highs in the
upper 50s. Northeast winds 5 to 10 mph.
.TUESDAY NIGHT AND WEDNESDAY...Mostly cloudy. Lows in the mid
40s. Highs around 60. East winds 5 to 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the mid 40s. Northeast
winds 5 to 10 mph.
.THURSDAY...Partly sunny with a chance of showers. Highs in the
lower 60s. Northeast winds 5 to 10 mph.
$$
MAZ002-182000-
Western Franklin MA-
Including the city of Charlemont
407 AM EDT Fri Sep 18 2026
Today Tonight Sat
Cloud Cover Mclear Pcldy Pcldy
Precip Type None None None
Chance Precip (%)
Chance of Thunder (%) 0 0 0
Temp (24h trend) 74 (+3) 42 (-19) 64
RH % (24h trend) 51 (-24) 82 (-18) 38
20ft Wnd AM(mph) Lgt/Var Lgt/Var
20ft Wnd PM(mph) NW 5 Lgt/Var Lgt/Var
Precip Amount 0.00 0.00 0.00
Precip Duration
Precip Begin
Precip End
Mixing Hgt (ft-AGL) 5560 420 3900
Transport Wnd (kts) N 15 N 8 N 4
Vent Rate (kt-ft) 83400 3360 15600
Max ADI Early 51 Gen Good 24 Fair 31 Fair
Max ADI Late 100 Good 6 Very Poor 32 Fair
Max LVORI Early 1 4 2
Max LVORI Late 1 4 2
Min Vsby Early 2 Fog 9 9
Min Vsby Late 9 9 9
Sunshine Hours N/A N/A N/A
CWR 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Mostly cloudy. Lows in the mid 40s. Light and
variable wind, becoming south around 5 mph after midnight.
.SUNDAY...Showers. Patchy fog. Highs in the upper 50s. Southeast
winds around 5 mph.
.SUNDAY NIGHT...Showers. Patchy fog. Lows in the upper 40s.
Northeast winds around 5 mph.
.MONDAY...Partly sunny. Highs in the lower 60s. Northeast winds
around 5 mph.
.MONDAY NIGHT AND TUESDAY...Mostly cloudy with a chance of
showers. Lows in the mid 40s. Highs in the mid 50s. Northeast
winds 5 to 10 mph.
.TUESDAY NIGHT...Mostly cloudy. Lows in the lower 40s. Northeast
winds 10 to 15 mph.
.WEDNESDAY...Mostly sunny. Highs in the upper 50s. Northeast
winds 10 to 15 mph.
.WEDNESDAY NIGHT AND THURSDAY...Mostly cloudy. A chance of
showers. Lows in the lower 40s. Highs in the upper 50s. Northeast
winds 5 to 10 mph.
$$
MAZ003-182000-
Eastern Franklin MA-
Including the cities of Greenfield and Orange
407 AM EDT Fri Sep 18 2026
Today Tonight Sat
Cloud Cover Mclear Pcldy Pcldy
Precip Type None None None
Chance Precip (%)
Chance of Thunder (%) 0 0 0
Temp (24h trend) 77 (+2) 43 (-20) 67
RH % (24h trend) 50 (-16) 86 (-14) 37
20ft Wnd AM(mph) Lgt/Var Lgt/Var
20ft Wnd PM(mph) N 6 N 5 Lgt/Var
Precip Amount 0.00 0.00 0.00
Precip Duration
Precip Begin
Precip End
Mixing Hgt (ft-AGL) 5680 410 3970
Transport Wnd (kts) N 14 N 8 N 5
Vent Rate (kt-ft) 79520 3280 19850
Max ADI Early 55 Gen Good 22 Fair 33 Fair
Max ADI Late 85 Good 7 Poor 32 Fair
Max LVORI Early 1 4 2
Max LVORI Late 1 4 2
Min Vsby Early 2 Fog 9 9
Min Vsby Late 9 9 9
Sunshine Hours N/A N/A N/A
CWR 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Partly cloudy. Lows in the upper 40s. Southeast
winds around 5 mph.
.SUNDAY...Showers. Patchy fog. Highs in the lower 60s. Southeast
winds around 5 mph.
.SUNDAY NIGHT...Showers. Patchy fog. Lows in the lower 50s. East
winds around 5 mph, becoming north after midnight.
.MONDAY...Partly sunny. Highs in the mid 60s. North winds 5 to
10 mph.
.MONDAY NIGHT AND TUESDAY...Mostly cloudy with a chance of
showers. Lows in the mid 40s. Highs in the upper 50s. Northeast
winds 10 to 15 mph.
.TUESDAY NIGHT...Mostly cloudy. Lows in the mid 40s. Northeast
winds 10 to 15 mph.
.WEDNESDAY...Mostly sunny. Highs in the lower 60s. Northeast
winds 10 to 15 mph.
.WEDNESDAY NIGHT...Mostly cloudy. Lows in the mid 40s. Northeast
winds 10 to 15 mph.
.THURSDAY...Partly sunny with a chance of showers. Highs in the
lower 60s. Northeast winds 10 to 15 mph.
$$
MAZ008-182000-
Western Hampshire MA-
Including the city of Chesterfield
407 AM EDT Fri Sep 18 2026
Today Tonight Sat
Cloud Cover Mclear Pcldy Pcldy
Precip Type None None None
Chance Precip (%)
Chance of Thunder (%) 0 0 0
Temp (24h trend) 75 (+2) 43 (-18) 65
RH % (24h trend) 52 (-19) 80 (-20) 40
20ft Wnd AM(mph) Lgt/Var Lgt/Var
20ft Wnd PM(mph) NW 6 Lgt/Var Lgt/Var
Precip Amount 0.00 0.00 0.00
Precip Duration
Precip Begin
Precip End
Mixing Hgt (ft-AGL) 5320 420 4030
Transport Wnd (kts) N 14 N 9 NW 6
Vent Rate (kt-ft) 74480 3780 24180
Max ADI Early 50 Gen Good 29 Fair 30 Fair
Max ADI Late 100 Good 6 Very Poor 32 Fair
Max LVORI Early 1 4 2
Max LVORI Late 1 4 2
Min Vsby Early 2 Fog 9 9
Min Vsby Late 9 9 9
Sunshine Hours N/A N/A N/A
CWR 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Mostly cloudy. Lows in the upper 40s. Light and
variable wind, becoming south around 5 mph after midnight.
.SUNDAY...Showers. Patchy fog. Highs in the upper 50s. Southeast
winds around 5 mph.
.SUNDAY NIGHT...Showers. Patchy fog. Lows around 50. Northeast
winds around 5 mph.
.MONDAY...Partly sunny. Highs in the lower 60s. Northeast winds
5 to 10 mph.
.MONDAY NIGHT THROUGH TUESDAY NIGHT...Mostly cloudy with a chance
of showers. Lows in the mid 40s. Highs in the mid 50s. Northeast
winds 5 to 10 mph.
.WEDNESDAY...Mostly sunny. Highs in the upper 50s. Northeast
winds around 10 mph.
.WEDNESDAY NIGHT AND THURSDAY...Mostly cloudy. A chance of
showers. Lows in the mid 40s. Highs in the upper 50s. Northeast
winds 5 to 10 mph.
$$
MAZ010-182000-
Eastern Hampshire MA-
Including the cities of Amherst and Northampton
407 AM EDT Fri Sep 18 2026
Today Tonight Sat
Cloud Cover Mclear Pcldy Pcldy
Precip Type None None None
Chance Precip (%)
Chance of Thunder (%) 0 0 0
Temp (24h trend) 79 (+1) 45 (-18) 68
RH % (24h trend) 50 (-5) 83 (-17) 38
20ft Wnd AM(mph) Lgt/Var Lgt/Var
20ft Wnd PM(mph) N 7 N 6 Lgt/Var
Precip Amount 0.00 0.00 0.00
Precip Duration
Precip Begin
Precip End
Mixing Hgt (ft-AGL) 5750 410 3940
Transport Wnd (kts) N 13 N 9 N 5
Vent Rate (kt-ft) 74750 3690 19700
Max ADI Early 52 Gen Good 20 Gen Poor 32 Fair
Max ADI Late 69 Good 8 Poor 31 Fair
Max LVORI Early 1 4 2
Max LVORI Late 1 4 2
Min Vsby Early 4 Fog 9 9
Min Vsby Late 9 9 9
Sunshine Hours N/A N/A N/A
CWR 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Partly cloudy. Lows in the upper 40s. Southeast
winds around 5 mph.
.SUNDAY...Showers. Patchy fog. Highs in the lower 60s. Southeast
winds around 5 mph.
.SUNDAY NIGHT...Showers. Patchy fog. Lows in the lower 50s.
Northeast winds 5 to 10 mph.
.MONDAY AND MONDAY NIGHT...Mostly cloudy. A chance of showers.
Lows around 50. Highs in the mid 60s. Northeast winds 10 to
15 mph.
.TUESDAY AND TUESDAY NIGHT...Mostly cloudy with a chance of
showers. Lows in the upper 40s. Highs around 60. Northeast winds
10 to 15 mph.
.WEDNESDAY AND WEDNESDAY NIGHT...Mostly cloudy. Lows in the upper
40s. Highs in the lower 60s. Northeast winds 10 to 15 mph.
.THURSDAY...Partly sunny with a chance of showers. Highs in the
lower 60s. Northeast winds 10 to 15 mph.
$$
MAZ009-182000-
Western Hampden MA-
Including the city of Blandford
407 AM EDT Fri Sep 18 2026
Today Tonight Sat
Cloud Cover Mclear Pcldy Pcldy
Precip Type None None None
Chance Precip (%)
Chance of Thunder (%) 0 0 0
Temp (24h trend) 75 (+1) 43 (-19) 65
RH % (24h trend) 53 (-13) 83 (-17) 41
20ft Wnd AM(mph) NW 5 Lgt/Var
20ft Wnd PM(mph) NW 6 Lgt/Var Lgt/Var
Precip Amount 0.00 0.00 0.00
Precip Duration
Precip Begin
Precip End
Mixing Hgt (ft-AGL) 5070 420 3970
Transport Wnd (kts) N 15 N 8 NW 6
Vent Rate (kt-ft) 76050 3360 23820
Max ADI Early 51 Gen Good 25 Fair 30 Fair
Max ADI Late 97 Good 7 Poor 34 Fair
Max LVORI Early 1 4 2
Max LVORI Late 1 4 2
Min Vsby Early 4 Fog 9 9
Min Vsby Late 9 9 9
Sunshine Hours N/A N/A N/A
CWR 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...Showers. Patchy fog. Highs around 60. Southeast winds
around 5 mph.
.SUNDAY NIGHT...Showers. Patchy fog. Lows in the lower 50s.
Northeast winds around 5 mph.
.MONDAY AND MONDAY NIGHT...Mostly cloudy. A chance of showers.
Lows 46 to 51. Highs in the lower 60s. Northeast winds 5 to
10 mph.
.TUESDAY AND TUESDAY NIGHT...Mostly cloudy with a chance of
showers. Lows in the mid 40s. Highs in the upper 50s. Northeast
winds 10 to 15 mph.
.WEDNESDAY...Partly sunny. Highs in the upper 50s. Northeast
winds 10 to 15 mph.
.WEDNESDAY NIGHT AND THURSDAY...Mostly cloudy. A chance of
showers. Lows in the mid 40s. Highs around 60. Northeast winds
10 to 15 mph.
$$
MAZ011-182000-
Eastern Hampden MA-
Including the city of Springfield
407 AM EDT Fri Sep 18 2026
Today Tonight Sat
Cloud Cover Mclear Pcldy Pcldy
Precip Type None None None
Chance Precip (%)
Chance of Thunder (%) 0 0 0
Temp (24h trend) 79 (+1) 45 (-19) 69
RH % (24h trend) 48 (-14) 80 (-20) 37
20ft Wnd AM(mph) Lgt/Var Lgt/Var
20ft Wnd PM(mph) N 7 N 6 Lgt/Var
Precip Amount 0.00 0.00 0.00
Precip Duration
Precip Begin
Precip End
Mixing Hgt (ft-AGL) 5680 410 4140
Transport Wnd (kts) N 12 N 9 N 6
Vent Rate (kt-ft) 68160 3690 24840
Max ADI Early 53 Gen Good 24 Fair 32 Fair
Max ADI Late 67 Good 8 Poor 32 Fair
Max LVORI Early 2 4 2
Max LVORI Late 2 4 2
Min Vsby Early 4 Fog 9 9
Min Vsby Late 9 9 9
Sunshine Hours N/A N/A N/A
CWR 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Partly cloudy. Lows in the upper 40s. Southeast
winds around 5 mph.
.SUNDAY...Showers. Patchy fog. Highs in the lower 60s. Southeast
winds around 5 mph.
.SUNDAY NIGHT...Showers. Patchy fog. Lows in the lower 50s.
Northeast winds 5 to 10 mph.
.MONDAY AND MONDAY NIGHT...Mostly cloudy. A chance of showers.
Lows in the lower 50s. Highs in the mid 60s. Northeast winds 5 to
10 mph.
.TUESDAY AND TUESDAY NIGHT...Mostly cloudy with a chance of
showers. Lows in the upper 40s. Highs around 60. Northeast winds
10 to 15 mph.
.WEDNESDAY...Partly sunny. Highs in the lower 60s. Northeast
winds 10 to 15 mph.
.WEDNESDAY NIGHT AND THURSDAY...Mostly cloudy. A chance of
showers. Lows in the mid 40s. Highs in the lower 60s. Northeast
winds 10 to 15 mph.
$$
CTZ002-182000-
Hartford CT-
Including the cities of Hartford and Windsor Locks
407 AM EDT Fri Sep 18 2026
Today Tonight Sat
Cloud Cover Mclear Pcldy Pcldy
Precip Type None None None
Chance Precip (%)
Chance of Thunder (%) 0 0 0
Temp (24h trend) 80 (+2) 47 (-18) 69
RH % (24h trend) 48 (-12) 80 (-20) 39
20ft Wnd AM(mph) Lgt/Var Lgt/Var
20ft Wnd PM(mph) N 6 N 5 Lgt/Var
Precip Amount 0.00 0.00 0.00
Precip Duration
Precip Begin
Precip End
Mixing Hgt (ft-AGL) 5240 440 4120
Transport Wnd (kts) N 12 N 9 N 5
Vent Rate (kt-ft) 62880 3960 20600
Max ADI Early 52 Gen Good 23 Fair 34 Fair
Max ADI Late 70 Good 8 Poor 31 Fair
Max LVORI Early 1 4 2
Max LVORI Late 1 4 2
Min Vsby Early 6 Fog 9 9
Min Vsby Late 9 9 9
Sunshine Hours N/A N/A N/A
CWR 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. Patchy fog. Highs in the lower 60s. Southeast
winds around 5 mph.
.SUNDAY NIGHT...Showers. Patchy fog. Lows in the mid 50s.
Northeast winds 5 to 10 mph.
.MONDAY AND MONDAY NIGHT...Mostly cloudy. A chance of showers.
Lows 49 to 54. Highs in the mid 60s. Northeast winds 10 to
15 mph.
.TUESDAY AND TUESDAY NIGHT...Mostly cloudy with a chance of
showers. Lows in the upper 40s. Highs around 60. Northeast winds
10 to 15 mph.
.WEDNESDAY...Partly sunny. Highs in the lower 60s. Northeast
winds 10 to 15 mph.
.WEDNESDAY NIGHT AND THURSDAY...Mostly cloudy. A chance of
showers. Lows in the upper 40s. Highs in the lower 60s. Northeast
winds 10 to 15 mph.
$$
CTZ003-182000-
Tolland CT-
Including the cities of Union and Vernon
407 AM EDT Fri Sep 18 2026
Today Tonight Sat
Cloud Cover Pcldy Pcldy Pcldy
Precip Type None None None
Chance Precip (%)
Chance of Thunder (%) 0 0 0
Temp (24h trend) 78 (+1) 46 (-19) 67
RH % (24h trend) 52 (-15) 80 (-20) 42
20ft Wnd AM(mph) Lgt/Var Lgt/Var
20ft Wnd PM(mph) N 6 N 5 Lgt/Var
Precip Amount 0.00 0.00 0.00
Precip Duration
Precip Begin
Precip End
Mixing Hgt (ft-AGL) 5180 430 4170
Transport Wnd (kts) N 12 N 8 N 5
Vent Rate (kt-ft) 62160 3440 20850
Max ADI Early 49 Gen Good 28 Fair 31 Fair
Max ADI Late 74 Good 8 Poor 30 Fair
Max LVORI Early 2 4 2
Max LVORI Late 2 4 2
Min Vsby Early 4 Fog 9 9
Min Vsby Late 9 9 9
Sunshine Hours N/A N/A N/A
CWR 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Mostly cloudy. Lows in the upper 40s. Southeast
winds around 5 mph.
.SUNDAY...Showers. Patchy fog. Highs in the mid 60s. Southeast
winds around 5 mph.
.SUNDAY NIGHT...Showers. Patchy fog. Lows in the mid 50s. East
winds around 5 mph.
.MONDAY THROUGH TUESDAY NIGHT...Mostly cloudy with a chance of
showers. Lows 47 to 54. Highs in the lower 60s. Northeast winds
5 to 10 mph.
.WEDNESDAY...Partly sunny. Highs in the lower 60s. Northeast
winds 10 to 15 mph.
.WEDNESDAY NIGHT AND THURSDAY...Mostly cloudy. A chance of
showers. Lows in the upper 40s. Highs in the lower 60s. Northeast
winds 10 to 15 mph.
$$
CTZ004-182000-
Windham CT-
Including the cities of Putnam and Willimantic
407 AM EDT Fri Sep 18 2026
Today Tonight Sat
Cloud Cover Pcldy Mclear Pcldy
Precip Type None None None
Chance Precip (%)
Chance of Thunder (%) 0 0 0
Temp (24h trend) 79 (+1) 46 (-18) 68
RH % (24h trend) 54 (-11) 80 (-20) 43
20ft Wnd AM(mph) Lgt/Var Lgt/Var
20ft Wnd PM(mph) N 6 N 5 Lgt/Var
Precip Amount 0.00 0.00 0.00
Precip Duration
Precip Begin
Precip End
Mixing Hgt (ft-AGL) 5260 450 4380
Transport Wnd (kts) N 11 N 9 N 5
Vent Rate (kt-ft) 57860 4050 21900
Max ADI Early 50 Gen Good 25 Fair 36 Fair
Max ADI Late 77 Good 7 Poor 34 Fair
Max LVORI Early 1 4 2
Max LVORI Late 1 4 2
Min Vsby Early 4 Fog 9 9
Min Vsby Late 9 9 9
Sunshine Hours N/A N/A N/A
CWR 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. Patchy fog. Highs in
the mid 60s. Southeast winds around 5 mph.
.SUNDAY NIGHT...Showers. Patchy fog. Lows in the mid 50s. East
winds around 5 mph.
.MONDAY THROUGH TUESDAY NIGHT...Mostly cloudy with a chance of
showers. Lows 48 to 54. Highs in the lower 60s. Northeast winds
10 to 15 mph.
.WEDNESDAY...Partly sunny. Highs in the lower 60s. Northeast
winds 10 to 15 mph.
.WEDNESDAY NIGHT AND THURSDAY...Mostly cloudy. A chance of
showers. Lows in the upper 40s. Highs in the lower 60s. Northeast
winds 10 to 15 mph.
$$
RIZ001-182000-
Northwest Providence RI-
Including the cities of Foster and Smithfield
407 AM EDT Fri Sep 18 2026
Today Tonight Sat
Cloud Cover Mclear Mclear Pcldy
Precip Type None None None
Chance Precip (%)
Chance of Thunder (%) 0 0 0
Temp (24h trend) 78 (0) 47 (-18) 66
RH % (24h trend) 52 (-15) 77 (-23) 45
20ft Wnd AM(mph) Lgt/Var Lgt/Var
20ft Wnd PM(mph) N 5 N 5 Lgt/Var
Precip Amount 0.00 0.00 0.00
Precip Duration
Precip Begin
Precip End
Mixing Hgt (ft-AGL) 5690 440 4430
Transport Wnd (kts) N 11 N 9 N 6
Vent Rate (kt-ft) 62590 3960 26580
Max ADI Early 55 Gen Good 43 Gen Good 41 Gen Good
Max ADI Late 80 Good 7 Poor 40 Fair
Max LVORI Early 1 3 2
Max LVORI Late 1 3 2
Min Vsby Early 4 Fog 9 9
Min Vsby Late 9 9 9
Sunshine Hours N/A N/A N/A
CWR 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Partly cloudy. Lows in the upper 40s. Southeast
winds around 5 mph.
.SUNDAY...Mostly cloudy with showers likely. Highs in the mid
60s. Southeast winds around 5 mph.
.SUNDAY NIGHT...Showers. Patchy fog. Lows in the mid 50s. East
winds around 5 mph.
.MONDAY THROUGH TUESDAY NIGHT...Mostly cloudy with a chance of
showers. Lows 49 to 54. Highs in the lower 60s. Northeast winds
5 to 10 mph.
.WEDNESDAY...Partly sunny. Highs in the lower 60s. Northeast
winds 10 to 15 mph.
.WEDNESDAY NIGHT AND THURSDAY...Mostly cloudy. A chance of
showers. Lows in the upper 40s. Highs in the lower 60s. Northeast
winds 10 to 15 mph.
$$
RIZ002-182000-
Southeast Providence RI-
Including the city of Providence
407 AM EDT Fri Sep 18 2026
Today Tonight Sat
Cloud Cover Mclear Mclear Pcldy
Precip Type None None None
Chance Precip (%)
Chance of Thunder (%) 0 0 0
Temp (24h trend) 79 (+1) 49 (-17) 67
RH % (24h trend) 52 (-15) 77 (-23) 46
20ft Wnd AM(mph) Lgt/Var Lgt/Var
20ft Wnd PM(mph) N 6 N 5 Lgt/Var
Precip Amount 0.00 0.00 0.00
Precip Duration
Precip Begin
Precip End
Mixing Hgt (ft-AGL) 5720 440 4620
Transport Wnd (kts) N 11 N 9 N 6
Vent Rate (kt-ft) 62920 3960 27720
Max ADI Early 55 Gen Good 31 Fair 45 Gen Good
Max ADI Late 80 Good 9 Poor 43 Gen Good
Max LVORI Early 1 4 2
Max LVORI Late 1 4 2
Min Vsby Early 4 Fog 9 9
Min Vsby Late 9 9 9
Sunshine Hours N/A N/A N/A
CWR 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Partly cloudy. Lows around 50. Southeast winds
around 5 mph.
.SUNDAY...Mostly cloudy with showers likely. Highs in the mid
60s. Southeast winds around 5 mph.
.SUNDAY NIGHT...Showers. Patchy fog. Lows in the mid 50s. East
winds around 5 mph.
.MONDAY THROUGH TUESDAY NIGHT...Mostly cloudy with a chance of
showers. Lows 51 to 56. Highs in the lower 60s. Northeast winds
10 to 15 mph.
.WEDNESDAY...Partly sunny. Highs in the lower 60s. Northeast
winds 10 to 15 mph.
.WEDNESDAY NIGHT AND THURSDAY...Mostly cloudy. A chance of
showers. Lows in the lower 50s. Highs in the mid 60s. Northeast
winds 10 to 15 mph.
$$
RIZ003-182000-
Western Kent RI-
Including the cities of Coventry and West Greenwich
407 AM EDT Fri Sep 18 2026
Today Tonight Sat
Cloud Cover Pcldy Mclear Pcldy
Precip Type None None None
Chance Precip (%)
Chance of Thunder (%) 0 0 0
Temp (24h trend) 78 (-1) 48 (-17) 66
RH % (24h trend) 54 (-11) 74 (-26) 46
20ft Wnd AM(mph) Lgt/Var Lgt/Var
20ft Wnd PM(mph) N 5 Lgt/Var Lgt/Var
Precip Amount 0.00 0.00 0.00
Precip Duration
Precip Begin
Precip End
Mixing Hgt (ft-AGL) 5310 420 4310
Transport Wnd (kts) N 10 N 9 N 6
Vent Rate (kt-ft) 53100 3780 25860
Max ADI Early 49 Gen Good 28 Fair 40 Fair
Max ADI Late 71 Good 9 Poor 40 Fair
Max LVORI Early 1 4 2
Max LVORI Late 1 4 2
Min Vsby Early 5 Fog 9 9
Min Vsby Late 9 9 9
Sunshine Hours N/A N/A N/A
CWR 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Partly cloudy. Lows around 50. Southeast winds
around 5 mph.
.SUNDAY...Mostly cloudy with showers likely. Highs in the mid
60s. Southeast winds around 5 mph.
.SUNDAY NIGHT...Showers. Patchy fog. Lows in the mid 50s. East
winds around 5 mph.
.MONDAY THROUGH TUESDAY NIGHT...Mostly cloudy with a chance of
showers. Lows 50 to 55. Highs in the lower 60s. Northeast winds
10 to 15 mph.
.WEDNESDAY...Partly sunny. Highs in the lower 60s. Northeast
winds 10 to 15 mph.
.WEDNESDAY NIGHT AND THURSDAY...Mostly cloudy. A chance of
showers. Lows around 50. Highs in the lower 60s. Northeast winds
10 to 15 mph.
$$
RIZ004-182000-
Eastern Kent RI-
Including the cities of East Greenwich, Warwick, and West Warwick
407 AM EDT Fri Sep 18 2026
Today Tonight Sat
Cloud Cover Pcldy Mclear Pcldy
Precip Type None None None
Chance Precip (%) 10
Chance of Thunder (%) 0 0 0
Temp (24h trend) 79 (0) 50 (-16) 67
RH % (24h trend) 52 (-13) 77 (-23) 46
20ft Wnd AM(mph) NW 5 N 5
20ft Wnd PM(mph) N 5 N 5 Lgt/Var
Precip Amount 0.00 0.00 0.00
Precip Duration
Precip Begin
Precip End
Mixing Hgt (ft-AGL) 5540 430 4510
Transport Wnd (kts) N 10 N 10 N 6
Vent Rate (kt-ft) 55400 4300 27060
Max ADI Early 38 Fair 23 Fair 47 Gen Good
Max ADI Late 70 Good 9 Poor 43 Gen Good
Max LVORI Early 1 3 2
Max LVORI Late 1 3 2
Min Vsby Early 5 Fog 9 9
Min Vsby Late 9 9 9
Sunshine Hours N/A N/A N/A
CWR 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...Showers. Patchy fog. Lows in the mid 50s. East
winds around 5 mph.
.MONDAY THROUGH TUESDAY NIGHT...Mostly cloudy with a chance of
showers. Lows in the mid 50s. Highs in the lower 60s. Northeast
winds 10 to 15 mph.
.WEDNESDAY...Partly sunny. Highs in the lower 60s. Northeast
winds 15 to 20 mph.
.WEDNESDAY NIGHT AND THURSDAY...Mostly cloudy. A chance of
showers. Lows in the lower 50s. Highs in the mid 60s. Northeast
winds 10 to 15 mph.
$$
RIZ005-182000-
Bristol RI-
Including the city of Bristol
407 AM EDT Fri Sep 18 2026
Today Tonight Sat
Cloud Cover Pcldy Mclear Pcldy
Precip Type None None None
Chance Precip (%) 10
Chance of Thunder (%) 0 0 0
Temp (24h trend) 79 (+3) 51 (-16) 67
RH % (24h trend) 52 (-27) 74 (-26) 48
20ft Wnd AM(mph) NW 5 N 5
20ft Wnd PM(mph) N 6 N 6 Lgt/Var
Precip Amount 0.00 0.00 0.00
Precip Duration
Precip Begin
Precip End
Mixing Hgt (ft-AGL) 5160 420 4760
Transport Wnd (kts) N 10 N 10 N 6
Vent Rate (kt-ft) 51600 4200 28560
Max ADI Early 40 Fair 17 Gen Poor 51 Gen Good
Max ADI Late 59 Gen Good 9 Poor 48 Gen Good
Max LVORI Early 1 3 2
Max LVORI Late 1 3 2
Min Vsby Early 5 Fog 9 9
Min Vsby Late 9 9 9
Sunshine Hours N/A N/A N/A
CWR 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Partly cloudy. Lows in the lower 50s. East
winds around 5 mph.
.SUNDAY...Mostly cloudy with showers likely. Highs in the mid
60s. Southeast winds around 5 mph.
.SUNDAY NIGHT...Showers. Patchy fog. Lows in the upper 50s. East
winds around 5 mph.
.MONDAY THROUGH TUESDAY NIGHT...Mostly cloudy with a chance of
showers. Lows 53 to 58. Highs in the mid 60s. Northeast winds
10 to 15 mph.
.WEDNESDAY...Partly sunny. Highs in the lower 60s. Northeast
winds 15 to 20 mph.
.WEDNESDAY NIGHT AND THURSDAY...Mostly cloudy. A chance of
showers. Lows in the lower 50s. Highs in the mid 60s. Northeast
winds 10 to 15 mph.
$$
RIZ006-182000-
Washington RI-
Including the cities of Narragansett and Westerly
407 AM EDT Fri Sep 18 2026
Today Tonight Sat
Cloud Cover Pcldy Pcldy Pcldy
Precip Type None None None
Chance Precip (%) 10
Chance of Thunder (%) 0 0 0
Temp (24h trend) 80 (+1) 49 (-16) 67
RH % (24h trend) 54 (-9) 78 (-22) 45
20ft Wnd AM(mph) Lgt/Var NE 6
20ft Wnd PM(mph) N 5 Lgt/Var Lgt/Var
Precip Amount 0.00 0.00 0.00
Precip Duration
Precip Begin
Precip End
Mixing Hgt (ft-AGL) 4450 420 4460
Transport Wnd (kts) N 8 N 11 NE 6
Vent Rate (kt-ft) 35600 4620 26760
Max ADI Early 40 Fair 11 Poor 41 Gen Good
Max ADI Late 45 Gen Good 10 Poor 41 Gen Good
Max LVORI Early 2 4 2
Max LVORI Late 2 4 2
Min Vsby Early 6 Fog 9 9
Min Vsby Late 9 9 9
Sunshine Hours N/A N/A N/A
CWR 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Partly cloudy. Lows in the lower 50s. East
winds around 5 mph.
.SUNDAY...Mostly cloudy with showers likely. Highs in the mid
60s. Southeast winds 5 to 10 mph.
.SUNDAY NIGHT...Showers. Patchy fog. Lows in the mid 50s. East
winds 5 to 10 mph.
.MONDAY...Mostly cloudy with a chance of showers. Highs in the
mid 60s. Northeast winds 10 to 15 mph.
.MONDAY NIGHT THROUGH TUESDAY NIGHT...Mostly cloudy with a chance
of showers. Lows in the lower 50s. Highs in the lower 60s.
Northeast winds 15 to 20 mph.
.WEDNESDAY...Breezy. Partly sunny. Highs in the lower 60s.
Northeast winds 15 to 25 mph.
.WEDNESDAY NIGHT AND THURSDAY...Breezy. Mostly cloudy. A chance
of showers. Lows in the lower 50s. Highs in the mid 60s.
Northeast winds 15 to 25 mph.
$$
RIZ007-182000-
Newport RI-
Including the city of Newport
407 AM EDT Fri Sep 18 2026
Today Tonight Sat
Cloud Cover Pcldy Pcldy Pcldy
Precip Type None None None
Chance Precip (%) 10
Chance of Thunder (%) 0 0 0
Temp (24h trend) 79 (+4) 53 (-14) 67
RH % (24h trend) 54 (-20) 77 (-23) 48
20ft Wnd AM(mph) NW 6 NE 7
20ft Wnd PM(mph) N 6 N 6 NE 5
Precip Amount 0.00 0.00 0.00
Precip Duration
Precip Begin
Precip End
Mixing Hgt (ft-AGL) 3100 440 4570
Transport Wnd (kts) N 9 N 13 NE 6
Vent Rate (kt-ft) 27900 5720 27420
Max ADI Early 21 Fair 10 Poor 36 Fair
Max ADI Late 25 Fair 12 Poor 46 Gen Good
Max LVORI Early 3 3 2
Max LVORI Late 3 3 2
Min Vsby Early 4 Fog 9 9
Min Vsby Late 9 9 9
Sunshine Hours N/A N/A N/A
CWR 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Partly cloudy. Lows in the mid 50s. East winds
5 to 10 mph.
.SUNDAY...Mostly cloudy with showers likely. Highs in the mid
60s. Southeast winds 5 to 10 mph.
.SUNDAY NIGHT...Showers. Patchy fog. Lows in the upper 50s. East
winds 5 to 10 mph.
.MONDAY...Partly sunny with a chance of showers. Highs in the mid
60s. Northeast winds 10 to 15 mph.
.MONDAY NIGHT THROUGH TUESDAY NIGHT...Mostly cloudy with a chance
of showers. Lows in the mid 50s. Highs in the lower 60s.
Northeast winds 15 to 20 mph.
.WEDNESDAY...Breezy. Partly sunny. Highs in the mid 60s.
Northeast winds 15 to 25 mph.
.WEDNESDAY NIGHT AND THURSDAY...Breezy. Mostly cloudy. A chance
of showers. Lows in the mid 50s. Highs in the mid 60s. Northeast
winds 15 to 25 mph.
$$
RIZ008-182000-
Block Island RI-
Including the city of New Shoreham
407 AM EDT Fri Sep 18 2026
Today Tonight Sat
Cloud Cover Pcldy Pcldy Pcldy
Precip Type None None None
Chance Precip (%) 20
Chance of Thunder (%) 0 0 0
Temp (24h trend) 75 (0) 59 (-9) 65
RH % (24h trend) 76 (+2) 79 (-18) 56
20ft Wnd AM(mph) NW 6 NE 10
20ft Wnd PM(mph) Lgt/Var N 6 E 7
Precip Amount 0.00 0.00 0.00
Precip Duration
Precip Begin
Precip End
Mixing Hgt (ft-AGL) 730 450 3770
Transport Wnd (kts) N 7 NW 5 NE 8
Vent Rate (kt-ft) 5110 2250 30160
Max ADI Early 11 Poor 16 Gen Poor 40 Fair
Max ADI Late 6 Very Poor 30 Fair 44 Gen Good
Max LVORI Early 5 3 2
Max LVORI Late 5 3 2
Min Vsby Early 8 9 9
Min Vsby Late 9 9 9
Sunshine Hours N/A N/A N/A
CWR 0 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 showers likely. Highs in the upper
60s. Southeast winds 5 to 10 mph.
.SUNDAY NIGHT AND MONDAY...Showers. Patchy fog. Lows in the lower
60s. Highs in the upper 60s. Northeast winds 10 to 15 mph.
.MONDAY NIGHT THROUGH TUESDAY NIGHT...Breezy. Mostly cloudy with
a chance of showers. Lows around 60. Highs in the mid 60s.
Northeast winds 15 to 25 mph.
.WEDNESDAY...Breezy. Partly sunny. Highs in the mid 60s.
Northeast winds 20 to 25 mph.
.WEDNESDAY NIGHT AND THURSDAY...Breezy. Mostly cloudy. A chance
of showers. Lows in the upper 50s. Highs in the mid 60s.
Northeast winds 20 to 25 mph.
$$
MAZ017-182000-
Northern Bristol MA-
Including the city of Taunton
407 AM EDT Fri Sep 18 2026
Today Tonight Sat
Cloud Cover Pcldy Mclear Pcldy
Precip Type None None None
Chance Precip (%) 10
Chance of Thunder (%) 0 0 0
Temp (24h trend) 79 (0) 47 (-18) 66
RH % (24h trend) 50 (-10) 80 (-20) 46
20ft Wnd AM(mph) Lgt/Var Lgt/Var
20ft Wnd PM(mph) N 5 Lgt/Var Lgt/Var
Precip Amount 0.00 0.00 0.00
Precip Duration
Precip Begin
Precip End
Mixing Hgt (ft-AGL) 5850 420 4590
Transport Wnd (kts) N 12 N 10 NE 7
Vent Rate (kt-ft) 70200 4200 32130
Max ADI Early 53 Gen Good 33 Fair 52 Gen Good
Max ADI Late 86 Good 6 Very Poor 48 Gen Good
Max LVORI Early 1 4 2
Max LVORI Late 1 4 2
Min Vsby Early 4 Fog 9 9
Min Vsby Late 9 9 9
Sunshine Hours N/A N/A N/A
CWR 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Partly cloudy. Lows in the upper 40s. East
winds around 5 mph in the evening, becoming light and variable.
.SUNDAY...Mostly cloudy with showers likely. Highs in the mid
60s. Southeast winds around 5 mph.
.SUNDAY NIGHT...Showers. Patchy fog. Lows in the lower 50s. East
winds around 5 mph.
.MONDAY THROUGH TUESDAY NIGHT...Mostly cloudy with a chance of
showers. Lows in the lower 50s. Highs in the lower 60s. Northeast
winds 5 to 10 mph.
.WEDNESDAY...Partly sunny. Highs in the lower 60s. Northeast
winds 10 to 15 mph.
.WEDNESDAY NIGHT AND THURSDAY...Mostly cloudy. A chance of
showers. Lows in the upper 40s. Highs in the mid 60s. Northeast
winds 10 to 15 mph.
$$
MAZ018-182000-
Western Plymouth MA-
Including the city of Brockton
407 AM EDT Fri Sep 18 2026
Today Tonight Sat
Cloud Cover Pcldy Mclear Pcldy
Precip Type None None None
Chance Precip (%) 10
Chance of Thunder (%) 0 0 0
Temp (24h trend) 79 (-1) 48 (-16) 65
RH % (24h trend) 50 (-10) 80 (-20) 48
20ft Wnd AM(mph) Lgt/Var NE 5
20ft Wnd PM(mph) N 5 Lgt/Var Lgt/Var
Precip Amount 0.00 0.00 0.00
Precip Duration
Precip Begin
Precip End
Mixing Hgt (ft-AGL) 5790 410 4010
Transport Wnd (kts) N 11 N 11 NE 8
Vent Rate (kt-ft) 63690 4510 32080
Max ADI Early 48 Gen Good 25 Fair 59 Gen Good
Max ADI Late 76 Good 7 Poor 55 Gen Good
Max LVORI Early 1 4 2
Max LVORI Late 1 4 2
Min Vsby Early 4 Fog 9 9
Min Vsby Late 9 9 9
Sunshine Hours N/A N/A N/A
CWR 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Partly cloudy. Lows in the upper 40s. East
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...Mostly cloudy with showers likely. Patchy fog.
Lows in the lower 50s. East winds around 5 mph.
.MONDAY THROUGH TUESDAY NIGHT...Mostly cloudy with a chance of
showers. Lows in the lower 50s. Highs in the mid 60s. Northeast
winds 10 to 15 mph.
.WEDNESDAY...Partly sunny. Highs in the lower 60s. Northeast
winds 10 to 15 mph.
.WEDNESDAY NIGHT AND THURSDAY...Mostly cloudy. A chance of
showers. Lows around 50. Highs in the mid 60s. Northeast winds
10 to 15 mph.
$$
MAZ019-182000-
Eastern Plymouth MA-
Including the city of Plymouth
407 AM EDT Fri Sep 18 2026
Today Tonight Sat
Cloud Cover Mclear Pcldy Pcldy
Precip Type None None None
Chance Precip (%) 10
Chance of Thunder (%) 0 0 0
Temp (24h trend) 77 (-2) 52 (-13) 64
RH % (24h trend) 50 (-10) 76 (-24) 50
20ft Wnd AM(mph) NW 5 NE 8
20ft Wnd PM(mph) N 5 N 5 NE 5
Precip Amount 0.00 0.00 0.00
Precip Duration
Precip Begin
Precip End
Mixing Hgt (ft-AGL) 3100 410 3670
Transport Wnd (kts) N 10 N 6 N 12
Vent Rate (kt-ft) 31000 2460 44040
Max ADI Early 21 Fair 13 Gen Poor 42 Gen Good
Max ADI Late 24 Fair 15 Gen Poor 37 Fair
Max LVORI Early 3 3 2
Max LVORI Late 3 3 2
Min Vsby Early 4 Fog 8 9
Min Vsby Late 8 9 9
Sunshine Hours N/A N/A N/A
CWR 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Partly cloudy. Lows in the lower 50s. Southeast
winds around 5 mph.
.SUNDAY...Mostly cloudy with a chance of showers. Highs in the
mid 60s. Southeast winds 5 to 10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely. Patchy fog.
Lows in the mid 50s. East winds around 5 mph.
.MONDAY THROUGH TUESDAY NIGHT...Mostly cloudy with a chance of
showers. Lows in the mid 50s. Highs in the mid 60s. Northeast
winds 15 to 20 mph.
.WEDNESDAY...Breezy. Partly sunny. Highs in the lower 60s.
Northeast winds 20 to 25 mph.
.WEDNESDAY NIGHT AND THURSDAY...Breezy. Mostly cloudy. A chance
of showers. Lows in the lower 50s. Highs in the mid 60s.
Northeast winds 15 to 25 mph.
$$
MAZ020-182000-
Southern Bristol MA-
Including the cities of Fall River and New Bedford
407 AM EDT Fri Sep 18 2026
Today Tonight Sat
Cloud Cover Pcldy Pcldy Pcldy
Precip Type None None None
Chance Precip (%) 10
Chance of Thunder (%) 0 0 0
Temp (24h trend) 80 (+3) 49 (-17) 66
RH % (24h trend) 52 (-12) 80 (-20) 47
20ft Wnd AM(mph) NW 5 NE 6
20ft Wnd PM(mph) N 5 Lgt/Var NE 5
Precip Amount 0.00 0.00 0.00
Precip Duration
Precip Begin
Precip End
Mixing Hgt (ft-AGL) 5370 410 4570
Transport Wnd (kts) N 9 N 11 NE 7
Vent Rate (kt-ft) 48330 4510 31990
Max ADI Early 45 Gen Good 13 Gen Poor 57 Gen Good
Max ADI Late 56 Gen Good 9 Poor 53 Gen Good
Max LVORI Early 2 4 2
Max LVORI Late 2 4 2
Min Vsby Early 4 Fog 9 9
Min Vsby Late 9 9 9
Sunshine Hours N/A N/A N/A
CWR 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Partly cloudy. Lows in the lower 50s. East
winds around 5 mph.
.SUNDAY...Mostly cloudy with showers likely. Highs in the upper
60s. Southeast winds 5 to 10 mph.
.SUNDAY NIGHT...Showers. Patchy fog. Lows in the mid 50s. East
winds 5 to 10 mph.
.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 with a chance
of showers. Lows in the lower 50s. Highs in the lower 60s.
Northeast winds 15 to 20 mph.
.WEDNESDAY...Breezy. Partly sunny. Highs in the mid 60s.
Northeast winds 20 to 25 mph.
.WEDNESDAY NIGHT AND THURSDAY...Breezy. Mostly cloudy. A chance
of showers. Lows in the lower 50s. Highs in the mid 60s.
Northeast winds 20 to 25 mph.
$$
MAZ021-182000-
Southern Plymouth MA-
Including the city of Mattapoisett
407 AM EDT Fri Sep 18 2026
Today Tonight Sat
Cloud Cover Pcldy Pcldy Pcldy
Precip Type None None None
Chance Precip (%) 10
Chance of Thunder (%) 0 0 0
Temp (24h trend) 80 (+3) 50 (-16) 67
RH % (24h trend) 54 (-10) 80 (-20) 48
20ft Wnd AM(mph) Lgt/Var NE 6
20ft Wnd PM(mph) Lgt/Var Lgt/Var NE 5
Precip Amount 0.00 0.00 0.00
Precip Duration
Precip Begin
Precip End
Mixing Hgt (ft-AGL) 4590 410 4010
Transport Wnd (kts) N 10 N 12 NE 8
Vent Rate (kt-ft) 45900 4920 32080
Max ADI Early 44 Gen Good 8 Poor 49 Gen Good
Max ADI Late 57 Gen Good 10 Poor 58 Gen Good
Max LVORI Early 2 4 2
Max LVORI Late 2 4 2
Min Vsby Early 5 Fog 9 9
Min Vsby Late 9 9 9
Sunshine Hours N/A N/A N/A
CWR 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Partly cloudy. Lows around 50. East winds
around 5 mph.
.SUNDAY...Mostly cloudy with a chance of showers. Highs in the
upper 60s. Southeast winds around 5 mph.
.SUNDAY NIGHT...Showers. Patchy fog. Lows in the mid 50s. East
winds around 5 mph.
.MONDAY...Partly sunny with a chance of showers. Highs in the mid
60s. Northeast winds 10 to 15 mph.
.MONDAY NIGHT THROUGH TUESDAY NIGHT...Mostly cloudy with a chance
of showers. Lows in the lower 50s. Highs in the mid 60s.
Northeast winds 15 to 20 mph.
.WEDNESDAY...Partly sunny. Highs in the mid 60s. Northeast winds
15 to 20 mph.
.WEDNESDAY NIGHT AND THURSDAY...Mostly cloudy. A chance of
showers. Lows in the lower 50s. Highs in the mid 60s. Northeast
winds 15 to 20 mph.
$$
MAZ022-182000-
Barnstable MA-
Including the cities of Chatham, Falmouth, and Provincetown
407 AM EDT Fri Sep 18 2026
Today Tonight Sat
Cloud Cover Pcldy Pcldy Pcldy
Precip Type None None None
Chance Precip (%) 10
Chance of Thunder (%) 0 0 0
Temp (24h trend) 75 (-2) 54 (-11) 64
RH % (24h trend) 66 (+9) 87 (-13) 52
20ft Wnd AM(mph) NW 6 NE 8
20ft Wnd PM(mph) N 5 Lgt/Var NE 5
Precip Amount 0.00 0.00 0.00
Precip Duration
Precip Begin
Precip End
Mixing Hgt (ft-AGL) 2670 420 3740
Transport Wnd (kts) N 12 N 4 N 11
Vent Rate (kt-ft) 32040 1680 41140
Max ADI Early 21 Fair 15 Gen Poor 44 Gen Good
Max ADI Late 24 Fair 18 Gen Poor 48 Gen Good
Max LVORI Early 4 3 2
Max LVORI Late 4 3 2
Min Vsby Early 4 Fog 8 9
Min Vsby Late 6 Fog 9 9
Sunshine Hours N/A N/A N/A
CWR 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Partly cloudy. Lows in the mid 50s. East 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...Mostly cloudy with showers likely. Patchy fog.
Lows in the upper 50s. East winds around 5 mph.
.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 with a chance
of showers. Lows in the mid 50s. Highs in the mid 60s. Northeast
winds 15 to 20 mph.
.WEDNESDAY...Partly sunny. Highs in the mid 60s. Northeast winds
15 to 20 mph.
.WEDNESDAY NIGHT AND THURSDAY...Mostly cloudy. A chance of
showers. Lows in the mid 50s. Highs in the mid 60s. Northeast
winds 15 to 20 mph.
$$
MAZ023-182000-
Dukes MA-
Including the city of Vineyard Haven
407 AM EDT Fri Sep 18 2026
Today Tonight Sat
Cloud Cover Pcldy Pcldy Pcldy
Precip Type None None None
Chance Precip (%) 20
Chance of Thunder (%) 0 0 0
Temp (24h trend) 77 (+4) 55 (-11) 65
RH % (24h trend) 64 (-7) 87 (-13) 50
20ft Wnd AM(mph) NW 7 NE 10
20ft Wnd PM(mph) N 5 Lgt/Var NE 7
Precip Amount 0.00 0.00 0.00
Precip Duration
Precip Begin
Precip End
Mixing Hgt (ft-AGL) 1510 430 4330
Transport Wnd (kts) N 9 NE 5 NE 9
Vent Rate (kt-ft) 13590 2150 38970
Max ADI Early 17 Gen Poor 22 Fair 44 Gen Good
Max ADI Late 17 Gen Poor 29 Fair 48 Gen Good
Max LVORI Early 4 3 1
Max LVORI Late 4 3 1
Min Vsby Early 7 9 9
Min Vsby Late 9 9 9
Sunshine Hours N/A N/A N/A
CWR 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Partly cloudy. Lows in the mid 50s. East winds
5 to 10 mph.
.SUNDAY...Mostly cloudy with a chance of showers. Highs in the
upper 60s. Southeast winds 5 to 10 mph.
.SUNDAY NIGHT...Showers. Patchy fog. Lows in the upper 50s. East
winds 5 to 10 mph.
.MONDAY...Mostly cloudy with showers likely. Patchy fog. Highs in
the upper 60s. Northeast winds 15 to 20 mph.
.MONDAY NIGHT THROUGH TUESDAY NIGHT...Breezy. Mostly cloudy with
a chance of showers. Lows in the upper 50s. Highs in the mid 60s.
Northeast winds 20 to 25 mph.
.WEDNESDAY...Windy. Partly sunny. Highs in the mid 60s. Northeast
winds 20 to 30 mph.
.WEDNESDAY NIGHT AND THURSDAY...Windy. Mostly cloudy. A chance of
showers. Lows in the mid 50s. Highs in the mid 60s. Northeast
winds 20 to 30 mph.
$$
MAZ024-182000-
Nantucket MA-
Including the city of Nantucket
407 AM EDT Fri Sep 18 2026
Today Tonight Sat
Cloud Cover Pcldy Mclear Pcldy
Precip Type Showers None None
Chance Precip (%) 30
Chance of Thunder (%) 0 0 0
Temp (24h trend) 72 (-1) 56 (-10) 64
RH % (24h trend) 78 (+14) 90 (-10) 58
20ft Wnd AM(mph) W 9 NE 11 G18
20ft Wnd PM(mph) N 8 N 5 NE 8
Precip Amount 0.01 0.00 0.00
Precip Duration 0
Precip Begin 6 AM
Precip End 8 AM
Mixing Hgt (ft-AGL) 1160 500 3640
Transport Wnd (kts) N 11 NE 7 NE 11
Vent Rate (kt-ft) 12760 3500 40040
Max ADI Early 15 Gen Poor 16 Gen Poor 1 Very Poor
Max ADI Late 16 Gen Poor 32 Fair 42 Gen Good
Max LVORI Early 4 3 2
Max LVORI Late 4 3 2
Min Vsby Early 7 8 9
Min Vsby Late 7 8 9
Sunshine Hours N/A N/A N/A
CWR 20 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Partly cloudy. Lows in the mid 50s. East 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. Patchy fog. Lows
around 60. East winds 5 to 10 mph.
.MONDAY...Mostly cloudy with showers likely. Patchy fog. Highs in
the upper 60s. Northeast winds 10 to 15 mph.
.MONDAY NIGHT...Breezy. Mostly cloudy with a chance of showers.
Lows in the upper 50s. Northeast winds 15 to 25 mph.
.TUESDAY AND TUESDAY NIGHT...Windy. Mostly cloudy with a chance
of showers. Lows in the upper 50s. Highs in the mid 60s.
Northeast winds 20 to 30 mph.
.WEDNESDAY...Windy. Partly sunny. Highs in the mid 60s. Northeast
winds 20 to 30 mph.
.WEDNESDAY NIGHT AND THURSDAY...Windy. Mostly cloudy. A chance of
showers. Lows in the upper 50s. Highs in the mid 60s. Northeast
winds 20 to 30 mph.
$$
.OUTLOOK 8 TO 14 DAYS...
Temperatures near normal. Precipitation above normal.
$$
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