Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Boston, MA
Issued by NWS Boston, MA
699
FNUS51 KBOX 202007
FWFBOX
Fire Weather Planning Forecast for Southern New England
National Weather Service Boston/Norton MA
407 PM EDT Thu Aug 20 2026
.DISCUSSION...
Showers become more widespread this evening and overnight. The
chance for showers and perhaps a few thunderstorms continues into
Friday, especially along the S coast.
Lowest relative humidity values will range from and 50 to
75 percent Friday. Values may be slightly higher along the Cape
and Nantucket.
.Outlook...Saturday through Thursday...
Multiple chances for showers and perhaps a widespread wetting
rainfall much of the day Saturday. Widespread rain tapers to
showers Sunday with drier weather Monday. Drier conditions
continue through next week.
MAZ015-210800-
Suffolk MA-
Including the city of Boston
407 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Cloudy Mcldy Mcldy Mcldy
Precip Type Rain Rain Rain Showers
Chance Precip (%) 80 30 70 70
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 65 (-4) 71 (-14) 63 74
RH % (24h trend) 87 (-3) 66 (+27) 97 84
20ft Wnd AM(mph) NE 7 NE 7
20ft Wnd PM(mph) NE 5 NE 8 NE 6 NE 7
Precip Amount 0.21 0.03 0.09 0.18
Precip Duration 7 1 6 7
Precip Begin 6 PM Continuing Continuing Continuing
Precip End Continuing Continuing Continuing Continuing
Mixing Hgt (ft-AGL) 430 2610 440 2440
Transport Wnd (kts) NE 7 NE 11 NE 8 NE 11
Vent Rate (kt-ft) 3010 28710 3520 26840
Max ADI Early 9 Poor 25 Fair 18 Gen Poor 26 Fair
Max ADI Late 9 Poor 26 Fair 9 Poor 1 Very Poor
Max LVORI Early 4 3 6 8
Max LVORI Late 4 3 6 8
Min Vsby Early 6 Fog 8 8 6 Fog
Min Vsby Late 6 Fog 8 10 5 Fog
Sunshine Hours N/A N/A N/A N/A
CWR 80 40 30 60
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Mostly cloudy with showers likely. Lows in the
mid 60s. Northeast winds 5 to 10 mph.
.SUNDAY...Mostly cloudy with a chance of showers. Highs in the
upper 70s. Southeast winds 5 to 10 mph.
.SUNDAY NIGHT...Mostly cloudy with a chance of showers. Lows in
the mid 60s. South winds 5 to 10 mph.
.MONDAY...Mostly sunny. Highs around 80. Southwest winds 5 to
10 mph.
.MONDAY NIGHT THROUGH WEDNESDAY...Mostly clear. Lows in the lower
60s. Highs around 80. Southwest winds 5 to 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the mid 60s. Southwest
winds 5 to 10 mph.
.THURSDAY...Partly sunny with a chance of showers. Highs in the
lower 80s. South winds 5 to 10 mph.
$$
MAZ016-210800-
Eastern Norfolk MA-
Including the city of Quincy
407 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Cloudy Mcldy Mcldy Mcldy
Precip Type Rain Rain Rain Showers
Chance Precip (%) 80 40 80 70
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 64 (-4) 70 (-15) 64 73
RH % (24h trend) 90 (-3) 71 (+32) 100 84
20ft Wnd AM(mph) NE 7 NE 8
20ft Wnd PM(mph) NE 5 NE 9 NE 7 NE 6
Precip Amount 0.26 0.06 0.12 0.19
Precip Duration 7 2 8 7
Precip Begin 6 PM Continuing Continuing Continuing
Precip End Continuing Continuing Continuing Continuing
Mixing Hgt (ft-AGL) 420 2410 440 2360
Transport Wnd (kts) N 10 NE 12 NE 9 NE 12
Vent Rate (kt-ft) 4200 28920 3960 28320
Max ADI Early 9 Poor 26 Fair 18 Gen Poor 25 Fair
Max ADI Late 9 Poor 28 Fair 9 Poor 1 Very Poor
Max LVORI Early 5 3 6 7
Max LVORI Late 5 3 6 7
Min Vsby Early 6 Fog 6 Fog 6 Fog 6 Fog
Min Vsby Late 6 Fog 6 Fog 7 5 Fog
Sunshine Hours N/A N/A N/A N/A
CWR 90 90 40 60
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Mostly cloudy with showers likely. Lows in the
mid 60s. Northeast winds around 5 mph.
.SUNDAY...Mostly cloudy with a chance of showers. Highs around
80. East winds around 5 mph, becoming south around 5 mph in the
afternoon.
.SUNDAY NIGHT...Mostly cloudy with a chance of showers. Lows in
the mid 60s. South winds around 5 mph.
.MONDAY...Mostly sunny. Highs in the lower 80s. Southwest winds
5 to 10 mph.
.MONDAY NIGHT THROUGH WEDNESDAY...Mostly clear. Lows around 60.
Highs in the lower 80s. Southwest winds 5 to 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the mid 60s. Southwest
winds around 5 mph.
.THURSDAY...Partly sunny with a chance of showers. Highs in the
lower 80s. South winds 5 to 10 mph.
$$
MAZ013-210800-
Western Norfolk MA-
Including the cities of Foxborough and Norwood
407 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Cloudy Mcldy Mcldy Mcldy
Precip Type Rain Rain Rain Showers
Chance Precip (%) 80 50 80 70
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 63 (-2) 71 (-15) 62 73
RH % (24h trend) 93 (-7) 64 (+25) 100 87
20ft Wnd AM(mph) NE 5 NE 5
20ft Wnd PM(mph) Lgt/Var NE 7 NE 5 NE 5
Precip Amount 0.39 0.07 0.11 0.18
Precip Duration 7 2 9 7
Precip Begin 6 PM Continuing Continuing Continuing
Precip End Continuing Continuing Continuing Continuing
Mixing Hgt (ft-AGL) 430 3230 430 2470
Transport Wnd (kts) N 7 NE 11 NE 6 NE 11
Vent Rate (kt-ft) 3010 35530 2580 27170
Max ADI Early 20 Gen Poor 28 Fair 24 Fair 20 Gen Poor
Max ADI Late 9 Poor 30 Fair 7 Poor 1 Very Poor
Max LVORI Early 6 3 6 9
Max LVORI Late 6 3 6 9
Min Vsby Early 5 Fog 6 Fog 6 Fog 5 Fog
Min Vsby Late 5 Fog 6 Fog 8 5 Fog
Sunshine Hours N/A N/A N/A N/A
CWR 100 90 30 50
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Mostly cloudy with showers likely. Lows in the
lower 60s. Northeast winds around 5 mph.
.SUNDAY...Mostly cloudy with a chance of showers. Highs around
80. East winds around 5 mph, becoming south around 5 mph in the
afternoon.
.SUNDAY NIGHT...Mostly cloudy with a chance of showers. Lows in
the lower 60s. Southwest winds around 5 mph.
.MONDAY THROUGH WEDNESDAY...Mostly clear. Lows 56 to 62. Highs
around 80. Southwest winds 5 to 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the lower 60s.
Southwest winds around 5 mph.
.THURSDAY...Partly sunny with a chance of showers. Highs in the
lower 80s. South winds 5 to 10 mph.
$$
MAZ014-210800-
Southeast Middlesex MA-
Including the city of Cambridge
407 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Cloudy Mcldy Mcldy Mcldy
Precip Type Rain Rain Rain Showers
Chance Precip (%) 80 20 60 70
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 63 (-4) 72 (-14) 62 73
RH % (24h trend) 90 (-3) 61 (+23) 97 81
20ft Wnd AM(mph) NE 5 NE 6
20ft Wnd PM(mph) NE 5 NE 7 NE 5 NE 6
Precip Amount 0.18 0.01 0.06 0.17
Precip Duration 6 1 4 7
Precip Begin 6 PM Continuing Continuing Continuing
Precip End Continuing Continuing Continuing Continuing
Mixing Hgt (ft-AGL) 420 3370 420 2520
Transport Wnd (kts) N 7 NE 10 NE 7 E 12
Vent Rate (kt-ft) 2940 33700 2940 30240
Max ADI Early 15 Gen Poor 27 Fair 21 Fair 21 Fair
Max ADI Late 8 Poor 30 Fair 8 Poor 1 Very Poor
Max LVORI Early 5 3 6 7
Max LVORI Late 5 3 6 7
Min Vsby Early 6 Fog 10 10 6 Fog
Min Vsby Late 6 Fog 10 10 5 Fog
Sunshine Hours N/A N/A N/A N/A
CWR 80 30 30 50
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Mostly cloudy with showers likely. Lows in the
lower 60s. Northeast winds around 5 mph.
.SUNDAY...Mostly cloudy with a chance of showers. Highs in the
upper 70s. Southeast winds around 5 mph.
.SUNDAY NIGHT...Mostly cloudy with a chance of showers. Lows in
the mid 60s. South winds around 5 mph.
.MONDAY...Mostly sunny. Highs in the lower 80s. Southwest winds
5 to 10 mph.
.MONDAY NIGHT THROUGH WEDNESDAY...Mostly clear. Lows around 60.
Highs in the lower 80s. Southwest winds 5 to 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the mid 60s. Southwest
winds around 5 mph.
.THURSDAY...Partly sunny with a chance of showers. Highs in the
lower 80s. South winds 5 to 10 mph.
$$
MAZ007-210800-
Eastern Essex MA-
Including the city of Gloucester
407 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Cloudy Mcldy Mcldy Mcldy
Precip Type Rain Rain Rain Showers
Chance Precip (%) 60 20 50 70
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 65 (-1) 71 (-11) 62 73
RH % (24h trend) 87 (-13) 61 (+21) 100 81
20ft Wnd AM(mph) NE 6 NE 8
20ft Wnd PM(mph) Lgt/Var NE 8 NE 5 NE 7
Precip Amount 0.14 0.01 0.04 0.21
Precip Duration 3 1 2 7
Precip Begin 6 PM Continuing Continuing Continuing
Precip End Continuing Continuing Continuing Continuing
Mixing Hgt (ft-AGL) 400 2190 410 2360
Transport Wnd (kts) SE 6 NE 10 E 8 E 12
Vent Rate (kt-ft) 2400 21900 3280 28320
Max ADI Early 8 Poor 23 Fair 14 Gen Poor 23 Fair
Max ADI Late 9 Poor 22 Fair 10 Poor 1 Very Poor
Max LVORI Early 4 3 6 8
Max LVORI Late 4 3 6 8
Min Vsby Early 6 Fog 10 10 6 Fog
Min Vsby Late 6 Fog 10 10 5 Fog
Sunshine Hours N/A N/A N/A N/A
CWR 70 20 30 60
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Mostly cloudy with showers likely. Lows in the
lower 60s. Northeast winds 5 to 10 mph.
.SUNDAY...Mostly cloudy with a chance of showers. Highs in the
upper 70s. East winds around 5 mph.
.SUNDAY NIGHT...Mostly cloudy with a chance of showers. Lows in
the mid 60s. South winds around 5 mph.
.MONDAY...Mostly sunny. Highs in the lower 80s. Southwest winds
5 to 10 mph.
.MONDAY NIGHT THROUGH TUESDAY NIGHT...Mostly clear. Lows around
60. Highs in the upper 70s. West winds 5 to 10 mph.
.WEDNESDAY...Sunny. Highs in the lower 80s. Southwest winds 5 to
10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the mid 60s. Southwest
winds 5 to 10 mph.
.THURSDAY...Mostly sunny with a chance of showers. Highs around
80. South winds 5 to 10 mph.
$$
MAZ006-210800-
Western Essex MA-
Including the city of Lawrence
407 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Cloudy Pcldy Mcldy Mcldy
Precip Type Rain Rain Rain Showers
Chance Precip (%) 60 20 50 60
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 64 (-1) 72 (-13) 61 73
RH % (24h trend) 90 (-10) 55 (+18) 97 81
20ft Wnd AM(mph) Lgt/Var NE 6
20ft Wnd PM(mph) Lgt/Var NE 6 Lgt/Var NE 5
Precip Amount 0.11 0.01 0.02 0.18
Precip Duration 2 1 1 7
Precip Begin 6 PM 8 AM Continuing Continuing
Precip End 5 AM Continuing Continuing Continuing
Mixing Hgt (ft-AGL) 420 3330 410 2420
Transport Wnd (kts) NE 8 NE 10 NE 7 E 12
Vent Rate (kt-ft) 3360 33300 2870 29040
Max ADI Early 13 Gen Poor 30 Fair 16 Gen Poor 30 Fair
Max ADI Late 6 Very Poor 37 Fair 7 Poor 1 Very Poor
Max LVORI Early 5 2 6 7
Max LVORI Late 5 2 6 7
Min Vsby Early 6 Fog 10 10 6 Fog
Min Vsby Late 7 10 9 5 Fog
Sunshine Hours N/A N/A N/A N/A
CWR 50 10 20 50
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Mostly cloudy with showers likely. Lows around
60. Northeast winds around 5 mph.
.SUNDAY...Mostly cloudy with showers likely. Highs in the upper
70s. East winds around 5 mph.
.SUNDAY NIGHT...Mostly cloudy with a chance of showers. Lows in
the lower 60s. South winds around 5 mph.
.MONDAY...Mostly sunny. Highs in the lower 80s. Southwest winds
5 to 10 mph.
.MONDAY NIGHT THROUGH WEDNESDAY...Mostly clear. Lows in the upper
50s. Highs in the lower 80s. Southwest winds 5 to 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the lower 60s.
Southwest winds around 5 mph.
.THURSDAY...Mostly sunny with a chance of showers. Highs in the
lower 80s. South winds 5 to 10 mph.
$$
MAZ005-210800-
Central Middlesex MA-
Including the cities of Framingham and Lowell
407 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Cloudy Pcldy Mcldy Mcldy
Precip Type Rain Rain Rain Showers
Chance Precip (%) 80 20 50 60
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 62 (-2) 73 (-13) 60 73
RH % (24h trend) 97 (-3) 53 (+14) 97 84
20ft Wnd AM(mph) Lgt/Var NE 5
20ft Wnd PM(mph) Lgt/Var NE 6 NE 5 NE 5
Precip Amount 0.18 0.02 0.04 0.16
Precip Duration 5 1 2 7
Precip Begin 6 PM Continuing Continuing Continuing
Precip End Continuing Continuing Continuing Continuing
Mixing Hgt (ft-AGL) 430 3940 410 2460
Transport Wnd (kts) N 7 NE 10 NE 7 NE 11
Vent Rate (kt-ft) 3010 39400 2870 27060
Max ADI Early 20 Gen Poor 30 Fair 22 Fair 17 Gen Poor
Max ADI Late 6 Very Poor 30 Fair 6 Very Poor 1 Very Poor
Max LVORI Early 6 2 6 7
Max LVORI Late 6 2 6 7
Min Vsby Early 6 Fog 10 8 5 Fog
Min Vsby Late 6 Fog 10 9 5 Fog
Sunshine Hours N/A N/A N/A N/A
CWR 80 20 30 50
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Mostly cloudy with showers likely. Lows around
60. Northeast winds around 5 mph.
.SUNDAY...Mostly cloudy with a chance of showers. Highs in the
upper 70s. East winds around 5 mph, becoming southeast in the
afternoon.
.SUNDAY NIGHT...Mostly cloudy with a chance of showers. Lows in
the lower 60s. South winds around 5 mph.
.MONDAY...Mostly sunny. Highs in the lower 80s. Southwest winds
around 5 mph.
.MONDAY NIGHT THROUGH WEDNESDAY...Mostly clear. Lows in the upper
50s. Highs in the lower 80s. Southwest winds around 5 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the lower 60s.
Southwest winds around 5 mph.
.THURSDAY...Partly sunny with a chance of showers. Highs in the
lower 80s. South winds around 5 mph.
$$
MAZ012-210800-
Southern Worcester MA-
Including the cities of Milford and Worcester
407 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Cloudy Mcldy Mcldy Mcldy
Precip Type Rain Rain Rain Showers
Chance Precip (%) 80 20 40 60
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 61 (-3) 71 (-13) 60 72
RH % (24h trend) 93 (-7) 59 (+18) 97 87
20ft Wnd AM(mph) NE 5 NE 5
20ft Wnd PM(mph) Lgt/Var NE 6 NE 5 NE 5
Precip Amount 0.38 0.03 0.05 0.14
Precip Duration 8 1 2 6
Precip Begin 6 PM Continuing Continuing Continuing
Precip End Continuing Continuing Continuing Continuing
Mixing Hgt (ft-AGL) 420 3650 420 2220
Transport Wnd (kts) N 8 NE 11 NE 7 NE 11
Vent Rate (kt-ft) 3360 40150 2940 24420
Max ADI Early 17 Gen Poor 26 Fair 24 Fair 18 Gen Poor
Max ADI Late 6 Very Poor 32 Fair 6 Very Poor 1 Very Poor
Max LVORI Early 6 3 6 8
Max LVORI Late 6 3 6 8
Min Vsby Early 5 Fog 8 6 Fog 5 Fog
Min Vsby Late 5 Fog 7 8 5 Fog
Sunshine Hours N/A N/A N/A N/A
CWR 100 30 20 50
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Mostly cloudy with showers likely. Lows around
60. Northeast winds around 5 mph.
.SUNDAY...Mostly cloudy with a chance of showers and
thunderstorms. Highs in the upper 70s. East winds around 5 mph,
becoming south around 5 mph in the afternoon.
.SUNDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows around 60. Southwest winds around 5 mph.
.MONDAY...Mostly sunny. Highs in the upper 70s. West winds 5 to
10 mph.
.MONDAY NIGHT THROUGH WEDNESDAY...Mostly clear. Lows in the mid
50s. Highs in the upper 70s. Southwest winds 5 to 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows around 60. Southwest winds
around 5 mph.
.THURSDAY...Partly sunny with a chance of showers. Highs around
80. South winds around 5 mph.
$$
MAZ004-210800-
Northern Worcester MA-
Including the cities of Barre and Fitchburg
407 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Cloudy Pcldy Pcldy Mcldy
Precip Type Rain Rain Rain Showers
Chance Precip (%) 80 20 40 50
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 59 (-3) 73 (-8) 58 71
RH % (24h trend) 93 (-7) 50 (+10) 96 78
20ft Wnd AM(mph) Lgt/Var NE 5
20ft Wnd PM(mph) Lgt/Var NE 6 NE 5 E 5
Precip Amount 0.17 0.01 0.02 0.12
Precip Duration 6 1 1 2
Precip Begin 6 PM Continuing Continuing Continuing
Precip End Continuing Continuing Continuing Continuing
Mixing Hgt (ft-AGL) 420 4310 420 2470
Transport Wnd (kts) N 6 E 10 NE 7 NE 11
Vent Rate (kt-ft) 2520 43100 2940 27170
Max ADI Early 11 Poor 30 Fair 22 Fair 21 Fair
Max ADI Late 5 Very Poor 44 Gen Good 5 Very Poor 1 Very Poor
Max LVORI Early 5 2 6 8
Max LVORI Late 5 2 6 8
Min Vsby Early 5 Fog 10 10 6 Fog
Min Vsby Late 6 Fog 10 9 5 Fog
Sunshine Hours N/A N/A N/A N/A
CWR 60 20 20 40
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Mostly cloudy with showers likely. Lows in the
upper 50s. East winds around 5 mph.
.SUNDAY...Mostly cloudy with showers likely and a chance of
thunderstorms. Highs in the upper 70s. East winds around 5 mph,
becoming south around 5 mph in the afternoon.
.SUNDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the upper 50s. Southwest winds around
5 mph.
.MONDAY...Mostly sunny. Highs in the upper 70s. West winds 5 to
10 mph.
.MONDAY NIGHT THROUGH WEDNESDAY...Mostly clear. Lows in the mid
50s. Highs in the upper 70s. Southwest winds 5 to 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the upper 50s.
Southwest winds around 5 mph.
.THURSDAY...Partly sunny with a chance of showers. Highs in the
upper 70s. Southwest winds around 5 mph.
$$
MAZ026-210800-
Northern Middlesex MA-
Including the city of Ayer
407 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Cloudy Pcldy Pcldy Mcldy
Precip Type Rain None Rain Showers
Chance Precip (%) 70 10 50 60
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 61 (-1) 75 (-9) 59 72
RH % (24h trend) 87 (-10) 52 (+11) 96 84
20ft Wnd AM(mph) Lgt/Var Lgt/Var
20ft Wnd PM(mph) Lgt/Var NE 5 Lgt/Var Lgt/Var
Precip Amount 0.12 0.00 0.03 0.14
Precip Duration 3 1 4
Precip Begin 6 PM 6 PM Continuing
Precip End 5 AM Continuing Continuing
Mixing Hgt (ft-AGL) 430 4500 410 2340
Transport Wnd (kts) N 6 E 10 NE 6 NE 12
Vent Rate (kt-ft) 2580 45000 2460 28080
Max ADI Early 14 Gen Poor 28 Fair 20 Gen Poor 14 Gen Poor
Max ADI Late 5 Very Poor 47 Gen Good 5 Very Poor 1 Very Poor
Max LVORI Early 5 2 6 7
Max LVORI Late 5 2 6 7
Min Vsby Early 6 Fog 10 10 5 Fog
Min Vsby Late 6 Fog 10 7 5 Fog
Sunshine Hours N/A N/A N/A N/A
CWR 50 0 30 40
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Mostly cloudy with showers likely. Lows in the
upper 50s. Northeast winds around 5 mph in the evening, becoming
light and variable.
.SUNDAY...Mostly cloudy with a chance of showers and
thunderstorms. Highs in the upper 70s. East winds around 5 mph,
becoming south around 5 mph in the afternoon.
.SUNDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the upper 50s. Southwest winds around
5 mph.
.MONDAY THROUGH WEDNESDAY...Mostly clear. Lows 54 to 59. Highs
around 80. Southwest winds 5 to 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the upper 50s.
Southwest winds around 5 mph.
.THURSDAY...Partly sunny with a chance of showers. Highs in the
lower 80s. Southwest winds around 5 mph.
$$
MAZ002-210800-
Western Franklin MA-
Including the city of Charlemont
407 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Pcldy Pcldy Mcldy
Precip Type Rain None Rain Showers
Chance Precip (%) 50 10 30 50
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 55 (-5) 74 (-4) 57 71
RH % (24h trend) 93 (-7) 50 (-1) 87 76
20ft Wnd AM(mph) Lgt/Var Lgt/Var
20ft Wnd PM(mph) Lgt/Var NE 5 Lgt/Var Lgt/Var
Precip Amount 0.07 0.00 0.01 0.08
Precip Duration 1 0 2
Precip Begin 6 PM 4 AM Continuing
Precip End 1 AM Continuing Continuing
Mixing Hgt (ft-AGL) 420 4670 400 2630
Transport Wnd (kts) N 5 E 9 NE 4 E 8
Vent Rate (kt-ft) 2100 42030 1600 21040
Max ADI Early 10 Poor 45 Gen Good 20 Gen Poor 21 Fair
Max ADI Late 6 Very Poor 53 Gen Good 5 Very Poor 22 Fair
Max LVORI Early 6 2 5 6
Max LVORI Late 6 2 5 6
Min Vsby Early 7 10 10 9
Min Vsby Late 10 10 10 9
Sunshine Hours N/A N/A N/A N/A
CWR 30 0 30
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Mostly cloudy with a chance of showers. Lows in
the upper 50s. East winds around 5 mph.
.SUNDAY...Mostly cloudy with showers likely and a chance of
thunderstorms. Highs in the mid 70s. East winds around 5 mph,
becoming south in the afternoon.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the mid 50s. Southwest winds around 5 mph.
.MONDAY...Mostly sunny. Highs in the lower 70s. West winds around
5 mph.
.MONDAY NIGHT THROUGH WEDNESDAY...Mostly clear. Lows in the lower
50s. Highs in the mid 70s. Southwest winds around 5 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the mid 50s. Southwest
winds around 5 mph.
.THURSDAY...Partly sunny with a chance of showers. Highs in the
upper 70s. Southwest winds around 5 mph.
$$
MAZ003-210800-
Eastern Franklin MA-
Including the cities of Greenfield and Orange
407 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Pcldy Pcldy Mcldy
Precip Type Rain None Rain Showers
Chance Precip (%) 60 10 30 50
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 58 (-3) 76 (-5) 58 74
RH % (24h trend) 96 (-4) 47 (+6) 93 76
20ft Wnd AM(mph) Lgt/Var Lgt/Var
20ft Wnd PM(mph) Lgt/Var NE 5 Lgt/Var Lgt/Var
Precip Amount 0.09 0.00 0.01 0.07
Precip Duration 2 1 2
Precip Begin 6 PM 9 PM Continuing
Precip End 2 AM Continuing Continuing
Mixing Hgt (ft-AGL) 410 4860 410 3010
Transport Wnd (kts) N 5 E 8 NE 5 E 8
Vent Rate (kt-ft) 2050 38880 2050 24080
Max ADI Early 9 Poor 34 Fair 24 Fair 17 Gen Poor
Max ADI Late 5 Very Poor 52 Gen Good 4 Very Poor 1 Very Poor
Max LVORI Early 6 1 6 6
Max LVORI Late 6 1 6 6
Min Vsby Early 6 Fog 10 10 8
Min Vsby Late 9 10 10 9
Sunshine Hours N/A N/A N/A N/A
CWR 30 0 40
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Mostly cloudy with a chance of showers. Lows in
the upper 50s. East winds around 5 mph.
.SUNDAY...Mostly cloudy with showers likely and a chance of
thunderstorms. Highs in the upper 70s. East winds around 5 mph,
becoming south around 5 mph in the afternoon.
.SUNDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the upper 50s. Southwest winds around
5 mph.
.MONDAY...Mostly sunny. Highs in the upper 70s. West winds 5 to
10 mph.
.MONDAY NIGHT THROUGH WEDNESDAY...Mostly clear. Lows in the mid
50s. Highs in the upper 70s. Southwest winds 5 to 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the upper 50s. South
winds around 5 mph.
.THURSDAY...Partly sunny with a chance of showers. Highs in the
upper 70s. South winds around 5 mph.
$$
MAZ008-210800-
Western Hampshire MA-
Including the city of Chesterfield
407 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Pcldy Pcldy Mcldy
Precip Type Rain None Rain Showers
Chance Precip (%) 70 10 30 50
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 57 (-3) 74 (-4) 57 71
RH % (24h trend) 93 (-4) 53 (-1) 90 81
20ft Wnd AM(mph) NE 5 Lgt/Var
20ft Wnd PM(mph) Lgt/Var NE 5 Lgt/Var Lgt/Var
Precip Amount 0.12 0.00 0.01 0.09
Precip Duration 2 1 2
Precip Begin 6 PM 1 AM Continuing
Precip End 2 AM Continuing Continuing
Mixing Hgt (ft-AGL) 410 4270 420 2500
Transport Wnd (kts) N 6 NE 9 NE 5 E 9
Vent Rate (kt-ft) 2460 38430 2100 22500
Max ADI Early 10 Poor 42 Gen Good 22 Fair 11 Poor
Max ADI Late 6 Very Poor 52 Gen Good 5 Very Poor 1 Very Poor
Max LVORI Early 5 2 5 7
Max LVORI Late 5 2 5 7
Min Vsby Early 6 Fog 10 10 9
Min Vsby Late 7 10 10 9
Sunshine Hours N/A N/A N/A N/A
CWR 40 0 10 40
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Mostly cloudy with showers likely. Lows in the
upper 50s. East winds around 5 mph.
.SUNDAY...Mostly cloudy with showers likely and a chance of
thunderstorms. Highs in the mid 70s. East winds around 5 mph,
becoming south around 5 mph in the afternoon.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the mid 50s. Southwest winds around 5 mph.
.MONDAY...Mostly sunny. Highs in the mid 70s. West winds 5 to
10 mph.
.MONDAY NIGHT THROUGH WEDNESDAY...Mostly clear. Lows in the lower
50s. Highs in the mid 70s. Southwest winds around 5 mph.
.WEDNESDAY NIGHT...Partly cloudy with a chance of showers. Lows
in the upper 50s. Southwest winds around 5 mph.
.THURSDAY...Partly sunny with a chance of showers. Highs in the
upper 70s. Southwest winds around 5 mph.
$$
MAZ010-210800-
Eastern Hampshire MA-
Including the cities of Amherst and Northampton
407 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Cloudy Pcldy Pcldy Mcldy
Precip Type Rain None Rain Showers
Chance Precip (%) 80 10 30 50
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 59 (-3) 76 (-6) 59 74
RH % (24h trend) 96 (-4) 50 (+10) 96 79
20ft Wnd AM(mph) N 5 Lgt/Var
20ft Wnd PM(mph) Lgt/Var NE 5 Lgt/Var E 5
Precip Amount 0.20 0.00 0.00 0.07
Precip Duration 3 2
Precip Begin 6 PM 6 AM
Precip End 5 AM Continuing
Mixing Hgt (ft-AGL) 420 4320 400 2930
Transport Wnd (kts) N 5 NE 9 NE 5 NE 7
Vent Rate (kt-ft) 2100 38880 2000 20510
Max ADI Early 10 Poor 28 Fair 16 Gen Poor 19 Gen Poor
Max ADI Late 5 Very Poor 49 Gen Good 5 Very Poor 1 Very Poor
Max LVORI Early 6 2 6 6
Max LVORI Late 6 2 6 6
Min Vsby Early 5 Fog 10 10 8
Min Vsby Late 6 Fog 10 10 9
Sunshine Hours N/A N/A N/A N/A
CWR 80 0 40
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Mostly cloudy with showers likely. Lows around
60. Northeast winds around 5 mph.
.SUNDAY...Mostly cloudy with showers likely and a chance of
thunderstorms. Highs in the upper 70s. East winds around 5 mph,
becoming south around 5 mph in the afternoon.
.SUNDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the upper 50s. Southwest winds around
5 mph.
.MONDAY...Mostly sunny. Highs in the upper 70s. West winds 5 to
10 mph.
.MONDAY NIGHT THROUGH WEDNESDAY...Mostly clear. Lows in the mid
50s. Highs in the upper 70s. Southwest winds 5 to 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the upper 50s. South
winds around 5 mph.
.THURSDAY...Partly sunny with a chance of showers. Highs in the
lower 80s. South winds 5 to 10 mph.
$$
MAZ009-210800-
Western Hampden MA-
Including the city of Blandford
407 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Pcldy Pcldy Mcldy
Precip Type Rain None Rain Showers
Chance Precip (%) 80 10 30 50
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 58 (-3) 74 (-5) 58 71
RH % (24h trend) 93 (-4) 53 (+2) 93 81
20ft Wnd AM(mph) N 5 Lgt/Var
20ft Wnd PM(mph) Lgt/Var NE 6 Lgt/Var Lgt/Var
Precip Amount 0.27 0.00 0.02 0.11
Precip Duration 3 1 3
Precip Begin 6 PM 10 PM Continuing
Precip End 5 AM Continuing Continuing
Mixing Hgt (ft-AGL) 420 4120 420 2460
Transport Wnd (kts) N 6 NE 9 NE 6 NE 7
Vent Rate (kt-ft) 2520 37080 2520 17220
Max ADI Early 9 Poor 32 Fair 21 Fair 11 Poor
Max ADI Late 7 Poor 41 Gen Good 5 Very Poor 1 Very Poor
Max LVORI Early 5 2 6 6
Max LVORI Late 5 2 6 6
Min Vsby Early 5 Fog 10 10 6 Fog
Min Vsby Late 6 Fog 10 10 6 Fog
Sunshine Hours N/A N/A N/A N/A
CWR 100 0 20 40
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Mostly cloudy with showers likely. Lows in the
upper 50s. East winds around 5 mph.
.SUNDAY...Mostly cloudy with showers likely and a chance of
thunderstorms. Highs in the upper 70s. East winds around 5 mph,
becoming south around 5 mph in the afternoon.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the upper 50s. Southwest winds around
5 mph.
.MONDAY...Mostly sunny. Highs in the mid 70s. West winds around
5 mph.
.MONDAY NIGHT THROUGH WEDNESDAY...Mostly clear. Lows in the mid
50s. Highs in the upper 70s. Southwest winds around 5 mph.
.WEDNESDAY NIGHT...Partly cloudy with a chance of showers. Lows
in the upper 50s. Southwest winds around 5 mph.
.THURSDAY...Partly sunny with a chance of showers. Highs in the
upper 70s. Southwest winds around 5 mph.
$$
MAZ011-210800-
Eastern Hampden MA-
Including the city of Springfield
407 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Cloudy Pcldy Pcldy Mcldy
Precip Type Rain Rain Rain Showers
Chance Precip (%) 80 20 30 50
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 59 (-4) 76 (-7) 59 74
RH % (24h trend) 96 (-4) 50 (+10) 96 76
20ft Wnd AM(mph) N 5 NE 5
20ft Wnd PM(mph) Lgt/Var NE 6 NE 5 E 5
Precip Amount 0.38 0.01 0.01 0.08
Precip Duration 7 1 1 2
Precip Begin 6 PM Continuing Continuing Continuing
Precip End Continuing Continuing Continuing Continuing
Mixing Hgt (ft-AGL) 420 4080 410 2780
Transport Wnd (kts) N 6 E 9 E 7 NE 7
Vent Rate (kt-ft) 2520 36720 2870 19460
Max ADI Early 10 Poor 26 Fair 17 Gen Poor 16 Gen Poor
Max ADI Late 5 Very Poor 31 Fair 5 Very Poor 1 Very Poor
Max LVORI Early 6 2 6 7
Max LVORI Late 6 2 6 7
Min Vsby Early 5 Fog 10 9 8
Min Vsby Late 5 Fog 9 9 7
Sunshine Hours N/A N/A N/A N/A
CWR 100 10 10 40
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Mostly cloudy with showers likely. Lows around
60. East winds around 5 mph.
.SUNDAY...Mostly cloudy with showers likely and a chance of
thunderstorms. Highs in the upper 70s. East winds around 5 mph,
becoming south around 5 mph in the afternoon.
.SUNDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the upper 50s. Southwest winds around
5 mph.
.MONDAY...Mostly sunny. Highs in the upper 70s. West winds 5 to
10 mph.
.MONDAY NIGHT THROUGH WEDNESDAY...Mostly clear. Lows in the mid
50s. Highs in the upper 70s. Southwest winds 5 to 10 mph.
.WEDNESDAY NIGHT...Partly cloudy with a chance of showers. Lows
around 60. South winds around 5 mph.
.THURSDAY...Partly sunny with a chance of showers. Highs in the
lower 80s. South winds 5 to 10 mph.
$$
CTZ002-210800-
Hartford CT-
Including the cities of Hartford and Windsor Locks
407 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Cloudy Pcldy Pcldy Mcldy
Precip Type Rain Rain Rain Showers
Chance Precip (%) 80 20 30 50
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 61 (-3) 76 (-7) 61 74
RH % (24h trend) 97 (-3) 54 (+14) 97 79
20ft Wnd AM(mph) N 6 N 5
20ft Wnd PM(mph) Lgt/Var NE 6 NE 5 Lgt/Var
Precip Amount 0.54 0.03 0.02 0.09
Precip Duration 8 1 1 2
Precip Begin 6 PM Continuing Continuing Continuing
Precip End Continuing Continuing Continuing Continuing
Mixing Hgt (ft-AGL) 440 3960 420 2610
Transport Wnd (kts) N 7 E 9 NE 7 NE 7
Vent Rate (kt-ft) 3080 35640 2940 18270
Max ADI Early 11 Poor 24 Fair 19 Gen Poor 12 Poor
Max ADI Late 7 Poor 29 Fair 5 Very Poor 1 Very Poor
Max LVORI Early 5 2 6 7
Max LVORI Late 5 2 6 7
Min Vsby Early 3 Fog 9 6 Fog 6 Fog
Min Vsby Late 4 Fog 6 Fog 6 Fog 7
Sunshine Hours N/A N/A N/A N/A
CWR 100 20 10 40
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Mostly cloudy with showers likely. Lows in the
lower 60s. East winds around 5 mph.
.SUNDAY...Mostly cloudy with showers likely and a chance of
thunderstorms. Highs around 80. Northeast winds around 5 mph,
becoming south in the afternoon.
.SUNDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the upper 50s. Southwest winds around
5 mph.
.MONDAY THROUGH WEDNESDAY...Mostly clear. Lows in the upper 50s.
Highs in the upper 70s. Southwest winds 5 to 10 mph.
.WEDNESDAY NIGHT...Partly cloudy with a chance of showers. Lows
in the lower 60s. South winds around 5 mph.
.THURSDAY...Partly sunny with a chance of showers. Highs in the
lower 80s. South winds 5 to 10 mph.
$$
CTZ003-210800-
Tolland CT-
Including the cities of Union and Vernon
407 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Cloudy Mcldy Mcldy Mcldy
Precip Type Rain Rain Rain Showers
Chance Precip (%) 80 20 40 60
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 61 (-2) 74 (-9) 61 73
RH % (24h trend) 97 (-3) 58 (+12) 97 81
20ft Wnd AM(mph) N 5 NE 5
20ft Wnd PM(mph) Lgt/Var NE 6 NE 6 Lgt/Var
Precip Amount 0.52 0.04 0.02 0.10
Precip Duration 8 1 1 3
Precip Begin 6 PM Continuing Continuing Continuing
Precip End Continuing Continuing Continuing Continuing
Mixing Hgt (ft-AGL) 450 3560 420 2300
Transport Wnd (kts) N 7 E 11 NE 7 NE 8
Vent Rate (kt-ft) 3150 39160 2940 18400
Max ADI Early 10 Poor 26 Fair 21 Fair 16 Gen Poor
Max ADI Late 6 Very Poor 31 Fair 5 Very Poor 1 Very Poor
Max LVORI Early 6 3 6 9
Max LVORI Late 6 3 6 9
Min Vsby Early 4 Fog 7 6 Fog 6 Fog
Min Vsby Late 4 Fog 6 Fog 6 Fog 6 Fog
Sunshine Hours N/A N/A N/A N/A
CWR 100 30 20 40
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Mostly cloudy with showers likely. Lows in the
lower 60s. East winds around 5 mph.
.SUNDAY...Partly sunny with a chance of showers and
thunderstorms. Highs in the upper 70s. East winds around 5 mph,
becoming south around 5 mph in the afternoon.
.SUNDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the upper 50s. Southwest winds around
5 mph.
.MONDAY...Mostly sunny. Highs in the upper 70s. West winds 5 to
10 mph.
.MONDAY NIGHT THROUGH WEDNESDAY...Mostly clear. Lows in the mid
50s. Highs in the upper 70s. Southwest winds 5 to 10 mph.
.WEDNESDAY NIGHT...Partly cloudy with a chance of showers. Lows
around 60. South winds around 5 mph.
.THURSDAY...Partly sunny with a chance of showers. Highs around
80. South winds 5 to 10 mph.
$$
CTZ004-210800-
Windham CT-
Including the cities of Putnam and Willimantic
407 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Cloudy Mcldy Mcldy Mcldy
Precip Type Rain Rain Rain Showers
Chance Precip (%) 80 30 40 60
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 61 (-2) 71 (-13) 61 73
RH % (24h trend) 97 (-3) 64 (+18) 100 87
20ft Wnd AM(mph) NE 5 NE 5
20ft Wnd PM(mph) Lgt/Var NE 7 NE 6 Lgt/Var
Precip Amount 0.57 0.09 0.05 0.13
Precip Duration 9 2 2 4
Precip Begin 6 PM Continuing Continuing Continuing
Precip End Continuing Continuing Continuing Continuing
Mixing Hgt (ft-AGL) 470 3440 430 1990
Transport Wnd (kts) N 7 E 11 NE 7 NE 8
Vent Rate (kt-ft) 3290 37840 3010 15920
Max ADI Early 12 Poor 28 Fair 24 Fair 26 Fair
Max ADI Late 7 Poor 32 Fair 6 Very Poor 1 Very Poor
Max LVORI Early 6 3 6 9
Max LVORI Late 6 3 6 9
Min Vsby Early 5 Fog 5 Fog 6 Fog 6 Fog
Min Vsby Late 4 Fog 6 Fog 6 Fog 6 Fog
Sunshine Hours N/A N/A N/A N/A
CWR 100 100 20 40
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Mostly cloudy with showers likely. Lows in the
lower 60s. East winds around 5 mph.
.SUNDAY...Mostly cloudy with a chance of showers and
thunderstorms. Highs in the upper 70s. Southeast winds around
5 mph, becoming south around 5 mph in the afternoon.
.SUNDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows around 60. Southwest winds around 5 mph.
.MONDAY...Mostly sunny. Highs in the upper 70s. West winds 5 to
10 mph.
.MONDAY NIGHT THROUGH WEDNESDAY...Mostly clear. Lows in the mid
50s. Highs in the upper 70s. Southwest winds 5 to 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the lower 60s.
Southwest winds around 5 mph.
.THURSDAY...Partly sunny with a chance of showers. Highs around
80. South winds around 5 mph.
$$
RIZ001-210800-
Northwest Providence RI-
Including the cities of Foster and Smithfield
407 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Cloudy Mcldy Mcldy Mcldy
Precip Type Rain Rain Rain Showers
Chance Precip (%) 80 60 70 60
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 62 (-2) 70 (-15) 61 72
RH % (24h trend) 97 (-3) 71 (+29) 97 90
20ft Wnd AM(mph) NE 6 NE 5
20ft Wnd PM(mph) Lgt/Var NE 7 NE 6 Lgt/Var
Precip Amount 0.58 0.13 0.12 0.16
Precip Duration 8 4 8 6
Precip Begin 6 PM Continuing Continuing Continuing
Precip End Continuing Continuing Continuing Continuing
Mixing Hgt (ft-AGL) 430 3300 420 2110
Transport Wnd (kts) NE 7 E 11 NE 7 NE 11
Vent Rate (kt-ft) 3010 36300 2940 23210
Max ADI Early 24 Fair 26 Fair 26 Fair 17 Gen Poor
Max ADI Late 8 Poor 31 Fair 8 Poor 1 Very Poor
Max LVORI Early 6 3 6 9
Max LVORI Late 6 3 6 9
Min Vsby Early 5 Fog 5 Fog 6 Fog 5 Fog
Min Vsby Late 4 Fog 6 Fog 6 Fog 5 Fog
Sunshine Hours N/A N/A N/A N/A
CWR 100 100 30 50
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Mostly cloudy with showers likely. Lows in the
lower 60s. Northeast winds around 5 mph.
.SUNDAY...Mostly cloudy with a chance of showers. Highs in the
upper 70s. East winds around 5 mph, becoming south around 5 mph
in the afternoon.
.SUNDAY NIGHT...Mostly cloudy with a chance of showers. Lows in
the lower 60s. Southwest winds around 5 mph.
.MONDAY THROUGH WEDNESDAY...Mostly clear. Lows 56 to 62. Highs in
the upper 70s. Southwest winds 5 to 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the lower 60s.
Southwest winds around 5 mph.
.THURSDAY...Partly sunny with a chance of showers. Highs in the
upper 70s. South winds around 5 mph.
$$
RIZ002-210800-
Southeast Providence RI-
Including the city of Providence
407 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Cloudy Mcldy Mcldy Mcldy
Precip Type Rain Rain Rain Showers
Chance Precip (%) 80 70 80 60
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 64 (-3) 71 (-15) 63 73
RH % (24h trend) 90 (-7) 71 (+29) 97 90
20ft Wnd AM(mph) NE 6 NE 5
20ft Wnd PM(mph) Lgt/Var NE 8 NE 6 NE 5
Precip Amount 0.59 0.18 0.12 0.16
Precip Duration 9 6 9 4
Precip Begin 6 PM Continuing Continuing Continuing
Precip End Continuing Continuing Continuing Continuing
Mixing Hgt (ft-AGL) 460 3150 420 2060
Transport Wnd (kts) N 8 NE 11 NE 8 NE 11
Vent Rate (kt-ft) 3680 34650 3360 22660
Max ADI Early 19 Gen Poor 27 Fair 24 Fair 18 Gen Poor
Max ADI Late 8 Poor 32 Fair 9 Poor 1 Very Poor
Max LVORI Early 5 3 6 9
Max LVORI Late 5 3 6 9
Min Vsby Early 5 Fog 5 Fog 6 Fog 6 Fog
Min Vsby Late 4 Fog 6 Fog 6 Fog 6 Fog
Sunshine Hours N/A N/A N/A N/A
CWR 100 100 30 50
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Mostly cloudy with showers likely. Lows in the
lower 60s. Northeast winds around 5 mph.
.SUNDAY...Mostly cloudy with a chance of showers. Highs around
80. Southeast winds around 5 mph, becoming south in the
afternoon.
.SUNDAY NIGHT...Mostly cloudy with a chance of showers. Lows in
the mid 60s. Southwest winds 5 to 10 mph.
.MONDAY THROUGH WEDNESDAY...Mostly clear. Lows 58 to 64. Highs in
the upper 70s. Southwest winds 5 to 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the lower 60s.
Southwest winds 5 to 10 mph.
.THURSDAY...Partly sunny with a chance of showers. Highs in the
upper 70s. South winds 5 to 10 mph.
$$
RIZ003-210800-
Western Kent RI-
Including the cities of Coventry and West Greenwich
407 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Cloudy Mcldy Mcldy Mcldy
Precip Type Rain Rain Rain Showers
Chance Precip (%) 80 70 70 60
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 63 (-2) 70 (-14) 62 71
RH % (24h trend) 93 (-7) 71 (+26) 97 90
20ft Wnd AM(mph) NE 7 NE 6
20ft Wnd PM(mph) Lgt/Var NE 8 NE 7 Lgt/Var
Precip Amount 0.62 0.19 0.11 0.16
Precip Duration 9 6 7 3
Precip Begin 6 PM Continuing Continuing Continuing
Precip End Continuing Continuing Continuing Continuing
Mixing Hgt (ft-AGL) 500 3010 430 1820
Transport Wnd (kts) N 8 NE 12 NE 8 E 11
Vent Rate (kt-ft) 4000 36120 3440 20020
Max ADI Early 16 Gen Poor 27 Fair 22 Fair 19 Gen Poor
Max ADI Late 8 Poor 31 Fair 9 Poor 1 Very Poor
Max LVORI Early 5 3 6 10
Max LVORI Late 5 3 6 10
Min Vsby Early 5 Fog 5 Fog 7 6 Fog
Min Vsby Late 3 Fog 6 Fog 6 Fog 6 Fog
Sunshine Hours N/A N/A N/A N/A
CWR 100 100 30 50
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Mostly cloudy with showers likely. Lows in the
lower 60s. Northeast winds around 5 mph.
.SUNDAY...Mostly cloudy with a chance of showers. Highs in the
upper 70s. Southeast winds around 5 mph, becoming south around
5 mph in the afternoon.
.SUNDAY NIGHT...Mostly cloudy with a chance of showers. Lows in
the lower 60s. Southwest winds around 5 mph.
.MONDAY THROUGH WEDNESDAY...Mostly clear. Lows 57 to 62. Highs in
the upper 70s. Southwest winds 5 to 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the lower 60s.
Southwest winds around 5 mph.
.THURSDAY...Partly sunny with a chance of showers. Highs in the
upper 70s. South winds 5 to 10 mph.
$$
RIZ004-210800-
Eastern Kent RI-
Including the cities of East Greenwich, Warwick, and West Warwick
407 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Cloudy Mcldy Mcldy Mcldy
Precip Type Rain Rain Rain Showers
Chance Precip (%) 80 70 80 60
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 65 (-3) 71 (-14) 64 72
RH % (24h trend) 90 (-7) 71 (+26) 97 87
20ft Wnd AM(mph) NE 8 NE 6
20ft Wnd PM(mph) Lgt/Var NE 9 NE 7 NE 5
Precip Amount 0.62 0.22 0.12 0.16
Precip Duration 10 8 9 3
Precip Begin 6 PM Continuing Continuing Continuing
Precip End Continuing Continuing Continuing Continuing
Mixing Hgt (ft-AGL) 460 2920 440 1920
Transport Wnd (kts) N 8 NE 11 NE 8 NE 10
Vent Rate (kt-ft) 3680 32120 3520 19200
Max ADI Early 17 Gen Poor 27 Fair 19 Gen Poor 19 Gen Poor
Max ADI Late 8 Poor 31 Fair 9 Poor 1 Very Poor
Max LVORI Early 5 3 6 8
Max LVORI Late 5 3 6 8
Min Vsby Early 5 Fog 5 Fog 6 Fog 7
Min Vsby Late 4 Fog 6 Fog 6 Fog 6 Fog
Sunshine Hours N/A N/A N/A N/A
CWR 100 100 30 50
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Mostly cloudy with showers likely. Lows in the
mid 60s. Northeast winds around 5 mph.
.SUNDAY...Mostly cloudy with a chance of showers. Highs in the
upper 70s. Southeast winds 5 to 10 mph.
.SUNDAY NIGHT...Mostly cloudy with a chance of showers. Lows in
the mid 60s. Southwest winds 5 to 10 mph.
.MONDAY THROUGH WEDNESDAY...Mostly clear. Lows 59 to 64. Highs in
the upper 70s. Southwest winds 5 to 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the mid 60s. Southwest
winds 5 to 10 mph.
.THURSDAY...Partly sunny with a chance of showers. Highs in the
upper 70s. South winds 5 to 10 mph.
$$
RIZ005-210800-
Bristol RI-
Including the city of Bristol
407 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Cloudy Mcldy Mcldy Mcldy
Precip Type Rain Rain Rain Showers
Chance Precip (%) 80 80 80 60
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 66 (-3) 71 (-14) 66 73
RH % (24h trend) 90 (-7) 76 (+28) 93 90
20ft Wnd AM(mph) NE 7 NE 7
20ft Wnd PM(mph) NW 5 NE 9 NE 8 NE 5
Precip Amount 0.62 0.23 0.12 0.16
Precip Duration 10 9 9 5
Precip Begin 6 PM Continuing Continuing Continuing
Precip End Continuing Continuing Continuing Continuing
Mixing Hgt (ft-AGL) 460 3080 420 1960
Transport Wnd (kts) NE 8 NE 11 NE 8 NE 10
Vent Rate (kt-ft) 3680 33880 3360 19600
Max ADI Early 11 Poor 28 Fair 22 Fair 17 Gen Poor
Max ADI Late 8 Poor 30 Fair 10 Poor 1 Very Poor
Max LVORI Early 5 3 5 10
Max LVORI Late 5 3 5 10
Min Vsby Early 5 Fog 5 Fog 6 Fog 6 Fog
Min Vsby Late 5 Fog 6 Fog 6 Fog 6 Fog
Sunshine Hours N/A N/A N/A N/A
CWR 100 100 30 50
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Mostly cloudy with showers likely. Lows in the
mid 60s. Northeast winds around 5 mph.
.SUNDAY...Partly sunny with a chance of showers. Highs in the
upper 70s. Southeast winds 5 to 10 mph.
.SUNDAY NIGHT...Mostly cloudy. Lows in the mid 60s. Southwest
winds 5 to 10 mph.
.MONDAY AND MONDAY NIGHT...Mostly clear. Lows 61 to 66. Highs in
the upper 70s. West winds 5 to 10 mph.
.TUESDAY...Sunny. Highs in the upper 70s. West winds 5 to 10 mph.
.TUESDAY NIGHT AND WEDNESDAY...Mostly clear. Lows in the lower
60s. Highs in the upper 70s. Southwest winds 5 to 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the mid 60s. Southwest
winds 5 to 10 mph.
.THURSDAY...Partly sunny with a chance of showers. Highs in the
upper 70s. South winds 5 to 10 mph.
$$
RIZ006-210800-
Washington RI-
Including the cities of Narragansett and Westerly
407 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Cloudy Mcldy Mcldy Mcldy
Precip Type Rain Rain Rain Showers
Chance Precip (%) 80 70 70 60
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 64 (-2) 71 (-12) 64 72
RH % (24h trend) 97 (-3) 71 (+22) 97 90
20ft Wnd AM(mph) NE 7 G17 NE 6
20ft Wnd PM(mph) Lgt/Var NE 9 NE 8 NE 5
Precip Amount 0.63 0.23 0.11 0.17
Precip Duration 10 9 6 3
Precip Begin 6 PM Continuing Continuing Continuing
Precip End Continuing Continuing Continuing Continuing
Mixing Hgt (ft-AGL) 420 2590 420 1780
Transport Wnd (kts) N 8 NE 12 NE 9 NE 11
Vent Rate (kt-ft) 3360 31080 3780 19580
Max ADI Early 8 Poor 26 Fair 19 Gen Poor 24 Fair
Max ADI Late 9 Poor 28 Fair 10 Poor 18 Gen Poor
Max LVORI Early 5 3 6 5
Max LVORI Late 5 3 6 5
Min Vsby Early 5 Fog 5 Fog 6 Fog 6 Fog
Min Vsby Late 3 Fog 6 Fog 6 Fog 6 Fog
Sunshine Hours N/A N/A N/A N/A
CWR 100 100 40 50
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Showers. Lows in the mid 60s. East winds around
5 mph.
.SUNDAY...Partly sunny with a chance of showers. Highs in the
upper 70s. South winds 5 to 10 mph.
.SUNDAY NIGHT...Mostly cloudy. Lows in the mid 60s. Southwest
winds 5 to 10 mph.
.MONDAY THROUGH TUESDAY NIGHT...Mostly clear. Lows 58 to 64.
Highs in the upper 70s. West winds 10 to 15 mph.
.WEDNESDAY...Sunny. Highs in the upper 70s. Southwest winds 5 to
10 mph.
.WEDNESDAY NIGHT...Partly cloudy with a chance of showers. Lows
in the lower 60s. Southwest winds 5 to 10 mph.
.THURSDAY...Partly sunny with a chance of showers. Highs in the
upper 70s. South winds 5 to 10 mph.
$$
RIZ007-210800-
Newport RI-
Including the city of Newport
407 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Cloudy Mcldy Mcldy Mcldy
Precip Type Rain Rain Rain Showers
Chance Precip (%) 80 80 80 60
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 66 (-3) 71 (-11) 65 73
RH % (24h trend) 90 (-10) 73 (+24) 97 90
20ft Wnd AM(mph) NE 8 NE 7
20ft Wnd PM(mph) Lgt/Var NE 9 NE 8 NE 6
Precip Amount 0.62 0.24 0.12 0.16
Precip Duration 10 10 9 4
Precip Begin 6 PM Continuing Continuing Continuing
Precip End Continuing Continuing Continuing Continuing
Mixing Hgt (ft-AGL) 400 2490 420 1980
Transport Wnd (kts) SW 9 NE 11 NE 9 E 10
Vent Rate (kt-ft) 3600 27390 3780 19800
Max ADI Early 8 Poor 24 Fair 18 Gen Poor 26 Fair
Max ADI Late 10 Poor 25 Fair 11 Poor 16 Gen Poor
Max LVORI Early 5 3 6 8
Max LVORI Late 5 3 6 8
Min Vsby Early 5 Fog 5 Fog 5 Fog 6 Fog
Min Vsby Late 5 Fog 5 Fog 6 Fog 5 Fog
Sunshine Hours N/A N/A N/A N/A
CWR 100 100 40 50
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Showers. Lows in the mid 60s. East winds 5 to
10 mph.
.SUNDAY...Mostly cloudy with a chance of showers. Highs in the
upper 70s. South winds 5 to 10 mph.
.SUNDAY NIGHT...Mostly cloudy. Lows in the upper 60s. Southwest
winds 5 to 10 mph.
.MONDAY AND MONDAY NIGHT...Mostly clear. Lows 62 to 67. Highs in
the upper 70s. West winds 10 to 15 mph.
.TUESDAY...Sunny. Highs in the mid 70s. West winds 10 to 15 mph.
.TUESDAY NIGHT AND WEDNESDAY...Mostly clear. Lows in the mid 60s.
Highs in the upper 70s. Southwest winds 10 to 15 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the upper 60s.
Southwest winds 10 to 15 mph.
.THURSDAY...Partly sunny with a chance of showers. Highs in the
upper 70s. South winds 10 to 15 mph.
$$
RIZ008-210800-
Block Island RI-
Including the city of New Shoreham
407 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Cloudy Mcldy Mcldy Mcldy
Precip Type Tstms Rain Rain Tstms
Chance Precip (%) 80 80 70 60
Chance of Thunder (%) 10 0 0 20
Temp (24h trend) 67 (-4) 70 (-8) 67 75
RH % (24h trend) 93 (-7) 81 (+12) 97 87
20ft Wnd AM(mph) NE 10 G20 NE 9
20ft Wnd PM(mph) Lgt/Var NE 12 G18 NE 12 G18 E 7
Precip Amount 0.56 0.30 0.10 0.19
Precip Duration 10 9 4 4
Precip Begin 6 PM Continuing Continuing Continuing
Precip End Continuing Continuing Continuing Continuing
Mixing Hgt (ft-AGL) 420 1610 1160 1610
Transport Wnd (kts) W 8 NE 15 NE 14 NE 11
Vent Rate (kt-ft) 3360 24150 16240 17710
Max ADI Early 8 Poor 27 Fair 30 Fair 25 Fair
Max ADI Late 15 Gen Poor 30 Fair 15 Gen Poor 20 Gen Poor
Max LVORI Early 5 4 5 5
Max LVORI Late 5 4 5 5
Min Vsby Early 5 Fog 5 Fog 6 Fog 6 Fog
Min Vsby Late 5 Fog 6 Fog 10 5 Fog
Sunshine Hours N/A N/A N/A N/A
CWR 100 100 40 60
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Showers. Lows in the upper 60s. East winds
around 5 mph.
.SUNDAY...Partly sunny with a chance of showers. Highs in the
upper 70s. South winds 5 to 10 mph.
.SUNDAY NIGHT...Mostly cloudy. Lows in the upper 60s. Southwest
winds 5 to 10 mph.
.MONDAY THROUGH WEDNESDAY...Mostly clear. Lows in the upper 60s.
Highs in the mid 70s. Southwest winds 5 to 10 mph.
.WEDNESDAY NIGHT...Partly cloudy with a chance of showers. Lows
in the upper 60s. Southwest winds 5 to 10 mph.
.THURSDAY...Partly sunny with a chance of showers. Highs in the
mid 70s. South winds 5 to 10 mph.
$$
MAZ017-210800-
Northern Bristol MA-
Including the city of Taunton
407 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Cloudy Mcldy Mcldy Mcldy
Precip Type Rain Rain Rain Showers
Chance Precip (%) 80 70 80 60
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 64 (0) 71 (-16) 63 73
RH % (24h trend) 97 (-3) 71 (+29) 100 90
20ft Wnd AM(mph) NE 5 NE 5
20ft Wnd PM(mph) Lgt/Var NE 7 NE 5 Lgt/Var
Precip Amount 0.55 0.17 0.12 0.17
Precip Duration 9 7 9 6
Precip Begin 6 PM Continuing Continuing Continuing
Precip End Continuing Continuing Continuing Continuing
Mixing Hgt (ft-AGL) 420 2980 420 2420
Transport Wnd (kts) N 8 E 11 NE 6 NE 11
Vent Rate (kt-ft) 3360 32780 2520 26620
Max ADI Early 17 Gen Poor 27 Fair 24 Fair 19 Gen Poor
Max ADI Late 8 Poor 29 Fair 8 Poor 1 Very Poor
Max LVORI Early 6 3 7 9
Max LVORI Late 6 3 7 9
Min Vsby Early 5 Fog 5 Fog 6 Fog 5 Fog
Min Vsby Late 5 Fog 6 Fog 6 Fog 5 Fog
Sunshine Hours N/A N/A N/A N/A
CWR 100 100 30 60
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Mostly cloudy with showers likely. Lows in the
lower 60s. Northeast winds around 5 mph.
.SUNDAY AND SUNDAY NIGHT...Mostly cloudy with a chance of
showers. Lows in the lower 60s. Highs around 80. Southwest winds
around 5 mph.
.MONDAY THROUGH WEDNESDAY...Mostly clear. Lows 56 to 63. Highs
around 80. Southwest winds 5 to 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the lower 60s.
Southwest winds around 5 mph.
.THURSDAY...Partly sunny with a chance of showers. Highs around
80. South winds 5 to 10 mph.
$$
MAZ018-210800-
Western Plymouth MA-
Including the city of Brockton
407 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Cloudy Mcldy Mcldy Mcldy
Precip Type Rain Rain Rain Showers
Chance Precip (%) 80 70 80 70
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 64 (-1) 71 (-15) 64 73
RH % (24h trend) 97 (-3) 71 (+31) 100 90
20ft Wnd AM(mph) NE 5 NE 6
20ft Wnd PM(mph) Lgt/Var NE 8 NE 6 NE 5
Precip Amount 0.50 0.18 0.16 0.18
Precip Duration 10 9 9 7
Precip Begin 6 PM Continuing Continuing Continuing
Precip End Continuing Continuing Continuing Continuing
Mixing Hgt (ft-AGL) 420 2500 420 2340
Transport Wnd (kts) NE 8 NE 11 NE 9 NE 11
Vent Rate (kt-ft) 3360 27500 3780 25740
Max ADI Early 16 Gen Poor 26 Fair 20 Gen Poor 22 Fair
Max ADI Late 10 Poor 27 Fair 8 Poor 1 Very Poor
Max LVORI Early 6 3 7 10
Max LVORI Late 6 3 7 10
Min Vsby Early 5 Fog 5 Fog 6 Fog 5 Fog
Min Vsby Late 5 Fog 6 Fog 6 Fog 5 Fog
Sunshine Hours N/A N/A N/A N/A
CWR 100 100 60 60
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Cloudy with showers likely. Lows in the lower
60s. Northeast winds around 5 mph.
.SUNDAY...Mostly cloudy with a chance of showers. Highs around
80. Southeast winds around 5 mph.
.SUNDAY NIGHT...Mostly cloudy. Lows in the mid 60s. Southwest
winds around 5 mph.
.MONDAY THROUGH WEDNESDAY...Mostly clear. Lows 57 to 64. Highs
around 80. Southwest winds 5 to 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the lower 60s.
Southwest winds around 5 mph.
.THURSDAY...Partly sunny with a chance of showers. Highs around
80. South winds 5 to 10 mph.
$$
MAZ019-210800-
Eastern Plymouth MA-
Including the city of Plymouth
407 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Cloudy Mcldy Mcldy Mcldy
Precip Type Rain Rain Rain Showers
Chance Precip (%) 80 70 80 70
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 65 (-2) 70 (-12) 65 74
RH % (24h trend) 93 (-7) 73 (+29) 100 87
20ft Wnd AM(mph) NE 8 NE 8
20ft Wnd PM(mph) Lgt/Var NE 10 G19 NE 9 NE 6
Precip Amount 0.37 0.17 0.19 0.19
Precip Duration 8 9 9 7
Precip Begin 6 PM Continuing Continuing Continuing
Precip End Continuing Continuing Continuing Continuing
Mixing Hgt (ft-AGL) 400 1810 440 2100
Transport Wnd (kts) SE 7 NE 12 NE 10 E 11
Vent Rate (kt-ft) 2800 21720 4400 23100
Max ADI Early 9 Poor 23 Fair 18 Gen Poor 23 Fair
Max ADI Late 10 Poor 22 Fair 10 Poor 1 Very Poor
Max LVORI Early 5 4 6 10
Max LVORI Late 5 4 6 10
Min Vsby Early 5 Fog 5 Fog 5 Fog 5 Fog
Min Vsby Late 5 Fog 5 Fog 6 Fog 5 Fog
Sunshine Hours N/A N/A N/A N/A
CWR 100 100 60 60
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Cloudy with showers likely. Lows in the mid
60s. East winds 5 to 10 mph.
.SUNDAY...Mostly cloudy with a chance of showers. Highs in the
upper 70s. Southeast winds 5 to 10 mph.
.SUNDAY NIGHT...Mostly cloudy. Lows in the mid 60s. South winds
5 to 10 mph.
.MONDAY THROUGH TUESDAY NIGHT...Mostly clear. Lows 60 to 66.
Highs around 80. West winds 5 to 10 mph.
.WEDNESDAY...Sunny. Highs around 80. Southwest winds 5 to 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the mid 60s. Southwest
winds 5 to 10 mph.
.THURSDAY...Partly sunny with a chance of showers. Highs around
80. South winds 5 to 10 mph.
$$
MAZ020-210800-
Southern Bristol MA-
Including the cities of Fall River and New Bedford
407 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Cloudy Mcldy Mcldy Mcldy
Precip Type Rain Rain Rain Showers
Chance Precip (%) 80 80 80 60
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 66 (-2) 71 (-13) 65 74
RH % (24h trend) 93 (-7) 73 (+28) 100 90
20ft Wnd AM(mph) NE 7 NE 6
20ft Wnd PM(mph) Lgt/Var NE 9 G18 NE 7 NE 6
Precip Amount 0.63 0.25 0.12 0.17
Precip Duration 10 10 9 5
Precip Begin 6 PM Continuing Continuing Continuing
Precip End Continuing Continuing Continuing Continuing
Mixing Hgt (ft-AGL) 420 2830 410 2170
Transport Wnd (kts) NW 8 NE 11 NE 8 E 10
Vent Rate (kt-ft) 3360 31130 3280 21700
Max ADI Early 16 Gen Poor 27 Fair 22 Fair 19 Gen Poor
Max ADI Late 9 Poor 28 Fair 10 Poor 1 Very Poor
Max LVORI Early 5 3 6 9
Max LVORI Late 5 3 6 9
Min Vsby Early 5 Fog 5 Fog 6 Fog 6 Fog
Min Vsby Late 5 Fog 5 Fog 6 Fog 5 Fog
Sunshine Hours N/A N/A N/A N/A
CWR 100 100 30 60
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Showers. Lows in the mid 60s. East winds 5 to
10 mph.
.SUNDAY...Mostly cloudy with a chance of showers. Highs in the
upper 70s. South winds 5 to 10 mph.
.SUNDAY NIGHT...Mostly cloudy. Lows in the mid 60s. Southwest
winds 5 to 10 mph.
.MONDAY THROUGH WEDNESDAY...Mostly clear. Lows 60 to 66. Highs in
the upper 70s. Southwest winds 10 to 15 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the mid 60s. Southwest
winds 10 to 15 mph.
.THURSDAY...Partly sunny with a chance of showers. Highs in the
upper 70s. South winds 10 to 15 mph.
$$
MAZ021-210800-
Southern Plymouth MA-
Including the city of Mattapoisett
407 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Cloudy Cloudy Mcldy Mcldy
Precip Type Rain Rain Rain Showers
Chance Precip (%) 80 80 80 70
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 66 (0) 71 (-13) 65 74
RH % (24h trend) 93 (-4) 73 (+27) 100 90
20ft Wnd AM(mph) NE 7 NE 6
20ft Wnd PM(mph) Lgt/Var NE 9 G17 NE 7 NE 5
Precip Amount 0.62 0.26 0.18 0.18
Precip Duration 10 10 10 6
Precip Begin 6 PM Continuing Continuing Continuing
Precip End Continuing Continuing Continuing Continuing
Mixing Hgt (ft-AGL) 440 2250 430 2320
Transport Wnd (kts) NE 9 NE 11 NE 7 E 11
Vent Rate (kt-ft) 3960 24750 3010 25520
Max ADI Early 10 Poor 25 Fair 22 Fair 21 Fair
Max ADI Late 9 Poor 26 Fair 10 Poor 1 Very Poor
Max LVORI Early 5 3 6 9
Max LVORI Late 5 3 6 9
Min Vsby Early 5 Fog 5 Fog 6 Fog 5 Fog
Min Vsby Late 5 Fog 5 Fog 6 Fog 5 Fog
Sunshine Hours N/A N/A N/A N/A
CWR 100 100 50 60
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Showers. Lows in the mid 60s. East winds around
5 mph.
.SUNDAY...Mostly cloudy with a chance of showers. Highs in the
upper 70s. South winds 5 to 10 mph.
.SUNDAY NIGHT...Mostly cloudy. Lows in the mid 60s. Southwest
winds 5 to 10 mph.
.MONDAY THROUGH WEDNESDAY...Mostly clear. Lows 60 to 66. Highs in
the upper 70s. Southwest winds 10 to 15 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the mid 60s. Southwest
winds 5 to 10 mph.
.THURSDAY...Partly sunny with a chance of showers. Highs in the
upper 70s. South winds 10 to 15 mph.
$$
MAZ022-210800-
Barnstable MA-
Including the cities of Chatham, Falmouth, and Provincetown
407 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Cloudy Cloudy Mcldy
Precip Type Rain Rain Rain Showers
Chance Precip (%) 80 80 80 70
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 67 (-1) 70 (-11) 66 75
RH % (24h trend) 97 (-3) 79 (+28) 100 85
20ft Wnd AM(mph) NE 7 E 7
20ft Wnd PM(mph) Lgt/Var NE 10 G18 NE 9 G17 E 6
Precip Amount 0.36 0.30 0.22 0.18
Precip Duration 9 10 10 5
Precip Begin 6 PM Continuing Continuing Continuing
Precip End Continuing Continuing Continuing Continuing
Mixing Hgt (ft-AGL) 430 1860 460 2220
Transport Wnd (kts) NE 10 E 12 NE 10 E 12
Vent Rate (kt-ft) 4300 22320 4600 26640
Max ADI Early 8 Poor 21 Fair 21 Fair 20 Gen Poor
Max ADI Late 11 Poor 21 Fair 11 Poor 1 Very Poor
Max LVORI Early 5 4 6 9
Max LVORI Late 5 4 6 9
Min Vsby Early 5 Fog 5 Fog 5 Fog 6 Fog
Min Vsby Late 5 Fog 5 Fog 6 Fog 4 Fog
Sunshine Hours N/A N/A N/A N/A
CWR 100 100 90 90
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Showers. Lows in the upper 60s. Southeast winds
around 5 mph.
.SUNDAY...Mostly cloudy with showers likely. Highs in the upper
70s. South winds 5 to 10 mph.
.SUNDAY NIGHT...Mostly cloudy. Lows in the upper 60s. Southwest
winds 5 to 10 mph.
.MONDAY...Mostly sunny. Highs around 80. Southwest winds 10 to
15 mph.
.MONDAY NIGHT...Mostly clear. Lows in the mid 60s. West winds
10 to 15 mph.
.TUESDAY...Sunny. Highs in the upper 70s. West winds 10 to
15 mph.
.TUESDAY NIGHT AND WEDNESDAY...Mostly clear. Lows in the mid 60s.
Highs in the upper 70s. Southwest winds 5 to 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the upper 60s.
Southwest winds 5 to 10 mph.
.THURSDAY...Partly sunny with a chance of showers. Highs in the
upper 70s. South winds 5 to 10 mph.
$$
MAZ023-210800-
Dukes MA-
Including the city of Vineyard Haven
407 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Cloudy Cloudy Mcldy
Precip Type Rain Tstms Rain Showers
Chance Precip (%) 80 80 80 60
Chance of Thunder (%) 0 10 0 0
Temp (24h trend) 67 (0) 72 (-8) 68 76
RH % (24h trend) 93 (-7) 79 (+20) 100 84
20ft Wnd AM(mph) NE 9 G18 NE 9
20ft Wnd PM(mph) Lgt/Var NE 12 G19 NE 11 G17 E 7
Precip Amount 0.40 0.33 0.22 0.17
Precip Duration 9 11 11 4
Precip Begin 6 PM Continuing Continuing Continuing
Precip End Continuing Continuing Continuing Continuing
Mixing Hgt (ft-AGL) 430 2040 600 1980
Transport Wnd (kts) SW 9 NE 14 E 12 E 13
Vent Rate (kt-ft) 3870 28560 7200 25740
Max ADI Early 9 Poor 25 Fair 30 Fair 29 Fair
Max ADI Late 14 Gen Poor 29 Fair 14 Gen Poor 18 Gen Poor
Max LVORI Early 5 4 5 5
Max LVORI Late 5 4 5 5
Min Vsby Early 5 Fog 5 Fog 5 Fog 6 Fog
Min Vsby Late 5 Fog 5 Fog 6 Fog 4 Fog
Sunshine Hours N/A N/A N/A N/A
CWR 100 100 90 80
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Showers. Lows in the upper 60s. Southeast winds
5 to 10 mph.
.SUNDAY...Mostly cloudy with showers likely. Highs in the upper
70s. South winds 5 to 10 mph.
.SUNDAY NIGHT...Mostly cloudy with a chance of showers. Lows in
the upper 60s. Southwest winds 5 to 10 mph.
.MONDAY THROUGH WEDNESDAY...Mostly clear. Lows in the upper 60s.
Highs in the mid 70s. Southwest winds 10 to 15 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the upper 60s.
Southwest winds 10 to 15 mph.
.THURSDAY...Partly sunny with a chance of showers. Highs in the
upper 70s. South winds 10 to 15 mph.
$$
MAZ024-210800-
Nantucket MA-
Including the city of Nantucket
407 PM EDT Thu Aug 20 2026
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Cloudy Cloudy Mcldy
Precip Type Rain Tstms Tstms Tstms
Chance Precip (%) 80 80 80 60
Chance of Thunder (%) 0 10 10 20
Temp (24h trend) 69 (-1) 71 (-7) 67 76
RH % (24h trend) 97 (-3) 84 (+8) 100 82
20ft Wnd AM(mph) NE 10 E 9
20ft Wnd PM(mph) SW 5 E 12 E 13 SE 8
Precip Amount 0.26 0.20 0.19 0.15
Precip Duration 6 11 11 3
Precip Begin 7 PM Continuing Continuing Continuing
Precip End Continuing Continuing Continuing Continuing
Mixing Hgt (ft-AGL) 520 1410 860 1370
Transport Wnd (kts) SW 9 E 14 E 12 S 9
Vent Rate (kt-ft) 4680 19740 10320 12330
Max ADI Early 12 Poor 18 Gen Poor 22 Fair 22 Fair
Max ADI Late 9 Poor 20 Gen Poor 13 Gen Poor 16 Gen Poor
Max LVORI Early 5 5 6 8
Max LVORI Late 5 5 6 8
Min Vsby Early 6 Fog 5 Fog 6 Fog 6 Fog
Min Vsby Late 5 Fog 5 Fog 6 Fog 5 Fog
Sunshine Hours N/A N/A N/A N/A
CWR 100 100 80 80
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Showers. Lows in the upper 60s. South winds
5 to 10 mph.
.SUNDAY...Mostly cloudy with showers likely. Highs in the upper
70s. South winds 5 to 10 mph.
.SUNDAY NIGHT...Mostly cloudy with a chance of showers. Lows in
the upper 60s. Southwest winds 5 to 10 mph.
.MONDAY...Mostly sunny with a chance of showers. Highs in the
upper 70s. Southwest winds 10 to 15 mph.
.MONDAY NIGHT...Mostly clear. Lows in the upper 60s. West winds
10 to 15 mph.
.TUESDAY...Sunny. Highs in the mid 70s. West winds 10 to 15 mph.
.TUESDAY NIGHT AND WEDNESDAY...Mostly clear. Lows in the upper
60s. Highs in the mid 70s. Southwest winds 10 to 15 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the upper 60s.
Southwest winds 10 to 15 mph.
.THURSDAY...Partly sunny with a chance of showers. Highs in the
upper 70s. South winds 10 to 15 mph.
$$
.OUTLOOK 8 TO 14 DAYS...
Temperatures near normal. Precipitation above normal.
$$
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