948
FNUS51 KBOX 182009
FWFBOX
FIRE WEATHER PLANNING FORECAST FOR SOUTHERN NEW ENGLAND
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
408 PM EDT TUE AUG 18 2026
DISCUSSION
GENERALLY TRANQUIL AND DRY WEATHER THROUGH THURSDAY, ALTHOUGH A
LOW CHANCE FOR AN AFTERNOON SHOWER ACROSS THE INTERIOR DOES EXIST
THURSDAY. LOWEST RELATIVE HUMIDITY VALUES WILL RANGE FROM 45 TO
55 PERCENT WEDNESDAY AND 50 TO 60 PERCENT THURSDAY.
OUTLOOK...FRIDAY THROUGH TUESDAY
DRY AND SEASONABLE FOR FRIDAY, WITH UNSETTLED WEATHER OVER THE
WEEKEND WITH A CHANCE FOR SHOWERS OR A THUNDERSTORM BOTH DAYS.
DRIER CONDITIONS RETURN FOR EARLY NEXT WEEK.
MAZ015-190800-
SUFFOLK MA-
INCLUDING THE CITY OF BOSTON
408 PM EDT TUE AUG 18 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER PCLDY MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10 10 10 10
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 66 (0) 86 (+8) 68 84
RH % (24H TREND) 100 (0) 46 (-26) 87 53
20FT WND AM(MPH) LGT/VAR LGT/VAR
20FT WND PM(MPH) LGT/VAR SW 5 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT (FT-AGL) 420 5270 410 4150
TRANSPORT WND (KTS) SE 6 SW 8 SW 7 N 5
VENT RATE (KT-FT) 2520 42160 2870 20750
MAX ADI EARLY 9 POOR 29 FAIR 14 GEN POOR 18 GEN POOR
MAX ADI LATE 2 VERY POOR 51 GEN GOOD 4 VERY POOR 22 FAIR
MAX LVORI EARLY 10 2 5 2
MAX LVORI LATE 10 2 5 2
MIN VSBY EARLY 8 2 FOG 9 9
MIN VSBY LATE 2 FOG 9 9 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 0 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. SOUTHWEST
WINDS AROUND 5 MPH, BECOMING NORTHWEST AFTER MIDNIGHT.
FRIDAY AND FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S.
HIGHS IN THE UPPER 70S. NORTHEAST WINDS 5 TO 10 MPH.
SATURDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
MID 70S. EAST WINDS 5 TO 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE MID 60S. NORTHEAST WINDS 5 TO 10 MPH.
SUNDAY AND SUNDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF
SHOWERS. LOWS IN THE MID 60S. HIGHS IN THE UPPER 70S. SOUTHWEST
WINDS AROUND 5 MPH.
MONDAY
MOSTLY SUNNY. HIGHS AROUND 80. WEST WINDS 5 TO 10 MPH.
MONDAY NIGHT AND TUESDAY
MOSTLY CLEAR. LOWS IN THE LOWER 60S.
HIGHS AROUND 80. WEST WINDS 5 TO 10 MPH.
MAZ016-190800-
EASTERN NORFOLK MA-
INCLUDING THE CITY OF QUINCY
408 PM EDT TUE AUG 18 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER PCLDY MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10 10 10 10
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 65 (0) 87 (+10) 66 84
RH % (24H TREND) 100 (0) 48 (-26) 93 51
20FT WND AM(MPH) LGT/VAR LGT/VAR
20FT WND PM(MPH) LGT/VAR SW 5 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT (FT-AGL) 420 6050 420 4540
TRANSPORT WND (KTS) S 5 W 9 SW 6 W 6
VENT RATE (KT-FT) 2100 54450 2520 27240
MAX ADI EARLY 10 POOR 33 FAIR 29 FAIR 19 GEN POOR
MAX ADI LATE 3 VERY POOR 68 GOOD 4 VERY POOR 33 FAIR
MAX LVORI EARLY 10 1 6 2
MAX LVORI LATE 10 1 6 2
MIN VSBY EARLY 8 2 FOG 9 9
MIN VSBY LATE 2 FOG 9 9 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 0 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. SOUTHWEST
WINDS AROUND 5 MPH, BECOMING NORTHWEST AFTER MIDNIGHT.
FRIDAY AND FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S.
HIGHS IN THE UPPER 70S. EAST WINDS 5 TO 10 MPH.
SATURDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
MID 70S. EAST WINDS 5 TO 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE MID 60S. NORTHEAST WINDS AROUND 5 MPH.
SUNDAY AND SUNDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF
SHOWERS. LOWS IN THE MID 60S. HIGHS IN THE UPPER 70S. SOUTHWEST
WINDS AROUND 5 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. WEST WINDS 5 TO
10 MPH.
MONDAY NIGHT AND TUESDAY
MOSTLY CLEAR. LOWS IN THE LOWER 60S.
HIGHS IN THE LOWER 80S. WEST WINDS 5 TO 10 MPH.
MAZ013-190800-
WESTERN NORFOLK MA-
INCLUDING THE CITIES OF FOXBOROUGH AND NORWOOD
408 PM EDT TUE AUG 18 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER PCLDY MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10 10 10 10
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 64 (-2) 85 (+4) 65 84
RH % (24H TREND) 100 (0) 46 (-21) 93 53
20FT WND AM(MPH) LGT/VAR LGT/VAR
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT (FT-AGL) 400 6150 410 4650
TRANSPORT WND (KTS) SW 5 W 12 SW 6 W 7
VENT RATE (KT-FT) 2000 73800 2460 32550
MAX ADI EARLY 17 GEN POOR 46 GEN GOOD 45 GEN GOOD 18 GEN POOR
MAX ADI LATE 3 VERY POOR 92 GOOD 3 VERY POOR 47 GEN GOOD
MAX LVORI EARLY 10 1 7 2
MAX LVORI LATE 10 1 7 2
MIN VSBY EARLY 9 2 FOG 9 9
MIN VSBY LATE 2 FOG 9 9 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 0 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. NORTHWEST
WINDS AROUND 5 MPH.
FRIDAY AND FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S.
HIGHS IN THE LOWER 80S. NORTHEAST WINDS AROUND 5 MPH.
SATURDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
UPPER 70S. EAST WINDS AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. 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 IN THE UPPER 70S. SOUTHWEST
WINDS AROUND 5 MPH.
MONDAY
MOSTLY SUNNY. HIGHS AROUND 80. WEST WINDS 5 TO 10 MPH.
MONDAY NIGHT AND TUESDAY
MOSTLY CLEAR. LOWS IN THE UPPER 50S.
HIGHS AROUND 80. WEST WINDS AROUND 5 MPH.
MAZ014-190800-
SOUTHEAST MIDDLESEX MA-
INCLUDING THE CITY OF CAMBRIDGE
408 PM EDT TUE AUG 18 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER PCLDY PCLDY MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10 10 10 10
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 65 (-3) 86 (+6) 66 84
RH % (24H TREND) 100 (0) 45 (-10) 87 51
20FT WND AM(MPH) LGT/VAR LGT/VAR
20FT WND PM(MPH) LGT/VAR SW 5 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT (FT-AGL) 420 6250 420 4620
TRANSPORT WND (KTS) SE 5 W 11 SW 6 W 6
VENT RATE (KT-FT) 2100 68750 2520 27720
MAX ADI EARLY 15 GEN POOR 45 GEN GOOD 58 GEN GOOD 27 FAIR
MAX ADI LATE 2 VERY POOR 88 GOOD 4 VERY POOR 35 FAIR
MAX LVORI EARLY 10 1 5 2
MAX LVORI LATE 10 1 5 2
MIN VSBY EARLY 9 2 FOG 9 9
MIN VSBY LATE 2 FOG 9 9 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 0 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. WEST
WINDS AROUND 5 MPH, BECOMING NORTHWEST AFTER MIDNIGHT.
FRIDAY
SUNNY. HIGHS IN THE LOWER 80S. NORTH WINDS AROUND
5 MPH, BECOMING EAST IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. EAST WINDS
AROUND 5 MPH.
SATURDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
UPPER 70S. EAST WINDS AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. 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 IN THE UPPER 70S. SOUTHWEST
WINDS AROUND 5 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. WEST WINDS 5 TO
10 MPH.
MONDAY NIGHT AND TUESDAY
MOSTLY CLEAR. LOWS IN THE LOWER 60S.
HIGHS IN THE LOWER 80S. WEST WINDS AROUND 5 MPH.
MAZ007-190800-
EASTERN ESSEX MA-
INCLUDING THE CITY OF GLOUCESTER
408 PM EDT TUE AUG 18 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER PCLDY PCLDY MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10 10 10 10
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 63 (-3) 85 (+9) 65 83
RH % (24H TREND) 100 (0) 50 (-21) 90 53
20FT WND AM(MPH) LGT/VAR LGT/VAR
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT (FT-AGL) 420 4020 410 2840
TRANSPORT WND (KTS) SE 5 SW 8 W 6 NE 6
VENT RATE (KT-FT) 2100 32160 2460 17040
MAX ADI EARLY 9 POOR 17 GEN POOR 10 POOR 16 GEN POOR
MAX ADI LATE 3 VERY POOR 26 FAIR 4 VERY POOR 18 GEN POOR
MAX LVORI EARLY 10 3 6 3
MAX LVORI LATE 10 3 6 3
MIN VSBY EARLY 7 1 FOG 9 9
MIN VSBY LATE 2 FOG 9 9 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 0 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTH
WINDS AROUND 5 MPH, BECOMING NORTHWEST AFTER MIDNIGHT.
FRIDAY
SUNNY. HIGHS IN THE UPPER 70S. NORTH WINDS AROUND
5 MPH, BECOMING EAST IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTHEAST
WINDS AROUND 5 MPH, BECOMING EAST AFTER MIDNIGHT.
SATURDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
MID 70S. EAST WINDS 5 TO 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE LOWER 60S. NORTHEAST WINDS 5 TO 10 MPH.
SUNDAY AND SUNDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF
SHOWERS. LOWS IN THE LOWER 60S. HIGHS IN THE UPPER 70S. SOUTHWEST
WINDS 5 TO 10 MPH.
MONDAY
MOSTLY SUNNY. HIGHS AROUND 80. WEST WINDS 5 TO 10 MPH.
MONDAY NIGHT AND TUESDAY
MOSTLY CLEAR. LOWS IN THE LOWER 60S.
HIGHS AROUND 80. SOUTHWEST WINDS 5 TO 10 MPH.
MAZ006-190800-
WESTERN ESSEX MA-
INCLUDING THE CITY OF LAWRENCE
408 PM EDT TUE AUG 18 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER PCLDY PCLDY MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10 10 10 10
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 62 (-5) 85 (+6) 64 83
RH % (24H TREND) 100 (0) 45 (-24) 90 51
20FT WND AM(MPH) LGT/VAR LGT/VAR
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT (FT-AGL) 420 6460 420 4610
TRANSPORT WND (KTS) SE 5 W 11 SW 6 W 6
VENT RATE (KT-FT) 2100 71060 2520 27660
MAX ADI EARLY 15 GEN POOR 38 FAIR 35 FAIR 29 FAIR
MAX ADI LATE 2 VERY POOR 86 GOOD 3 VERY POOR 36 FAIR
MAX LVORI EARLY 10 1 6 2
MAX LVORI LATE 10 1 6 2
MIN VSBY EARLY 8 2 FOG 9 9
MIN VSBY LATE 1 FOG 9 9 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 0 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
THURSDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 60. SOUTHWEST WINDS
AROUND 5 MPH, BECOMING NORTHWEST AFTER MIDNIGHT.
FRIDAY AND FRIDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 60. HIGHS
AROUND 80. NORTHEAST WINDS AROUND 5 MPH.
SATURDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
UPPER 70S. EAST WINDS AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. 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 IN THE UPPER 70S. WEST
WINDS AROUND 5 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. WEST WINDS 5 TO
10 MPH.
MONDAY NIGHT AND TUESDAY
MOSTLY CLEAR. LOWS IN THE UPPER 50S.
HIGHS IN THE LOWER 80S. WEST WINDS AROUND 5 MPH.
MAZ005-190800-
CENTRAL MIDDLESEX MA-
INCLUDING THE CITIES OF FRAMINGHAM AND LOWELL
408 PM EDT TUE AUG 18 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER PCLDY MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 20 10 10 10
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 63 (-4) 85 (+3) 64 84
RH % (24H TREND) 100 (0) 45 (-23) 93 51
20FT WND AM(MPH) LGT/VAR LGT/VAR
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT (FT-AGL) 400 6250 380 4840
TRANSPORT WND (KTS) SW 4 W 12 W 6 W 6
VENT RATE (KT-FT) 1600 75000 2280 29040
MAX ADI EARLY 19 GEN POOR 51 GEN GOOD 51 GEN GOOD 29 FAIR
MAX ADI LATE 2 VERY POOR 99 GOOD 3 VERY POOR 43 GEN GOOD
MAX LVORI EARLY 10 1 6 1
MAX LVORI LATE 10 1 6 1
MIN VSBY EARLY 9 2 FOG 9 9
MIN VSBY LATE 2 FOG 9 9 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 0 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
THURSDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 60. NORTHWEST WINDS
AROUND 5 MPH.
FRIDAY
SUNNY. HIGHS IN THE LOWER 80S. NORTH WINDS AROUND
5 MPH, BECOMING EAST IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. SOUTHEAST
WINDS AROUND 5 MPH, BECOMING NORTHEAST AFTER MIDNIGHT.
SATURDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
UPPER 70S. EAST WINDS AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. 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 IN THE UPPER 70S. SOUTHWEST
WINDS AROUND 5 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. WEST WINDS AROUND
5 MPH.
MONDAY NIGHT AND TUESDAY
MOSTLY CLEAR. LOWS IN THE UPPER 50S.
HIGHS IN THE LOWER 80S. WEST WINDS AROUND 5 MPH.
MAZ012-190800-
SOUTHERN WORCESTER MA-
INCLUDING THE CITIES OF MILFORD AND WORCESTER
408 PM EDT TUE AUG 18 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER PCLDY MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE SHOWERS
CHANCE PRECIP (%) 20 10 10 20
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 62 (-2) 84 (+3) 63 82
RH % (24H TREND) 100 (0) 48 (-21) 97 55
20FT WND AM(MPH) LGT/VAR LGT/VAR
20FT WND PM(MPH) LGT/VAR W 5 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00 0.01
PRECIP DURATION 0
PRECIP BEGIN 2 PM
PRECIP END 6 PM
MIXING HGT (FT-AGL) 400 5790 390 4170
TRANSPORT WND (KTS) W 5 W 11 SW 6 W 7
VENT RATE (KT-FT) 2000 63690 2340 29190
MAX ADI EARLY 25 FAIR 51 GEN GOOD 42 GEN GOOD 23 FAIR
MAX ADI LATE 3 VERY POOR 81 GOOD 3 VERY POOR 36 FAIR
MAX LVORI EARLY 10 1 7 2
MAX LVORI LATE 10 1 7 2
MIN VSBY EARLY 9 4 FOG 9 8
MIN VSBY LATE 4 FOG 9 9 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 0 0 0 10
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. NORTHWEST
WINDS AROUND 5 MPH.
FRIDAY AND FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S.
HIGHS IN THE LOWER 80S. EAST WINDS AROUND 5 MPH.
SATURDAY AND SATURDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF
SHOWERS. LOWS AROUND 60. HIGHS IN THE UPPER 70S. NORTHEAST WINDS
AROUND 5 MPH.
SUNDAY
MOSTLY CLOUDY WITH SHOWERS LIKELY. 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
AROUND 60. SOUTHWEST WINDS AROUND 5 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. WEST WINDS 5 TO
10 MPH.
MONDAY NIGHT AND TUESDAY
MOSTLY CLEAR. LOWS IN THE UPPER 50S.
HIGHS IN THE UPPER 70S. WEST WINDS AROUND 5 MPH.
MAZ004-190800-
NORTHERN WORCESTER MA-
INCLUDING THE CITIES OF BARRE AND FITCHBURG
408 PM EDT TUE AUG 18 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER PCLDY MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE SHOWERS
CHANCE PRECIP (%) 20 20
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 59 (-5) 83 (+3) 60 81
RH % (24H TREND) 100 (0) 47 (-14) 100 51
20FT WND AM(MPH) LGT/VAR LGT/VAR
20FT WND PM(MPH) LGT/VAR W 5 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT (FT-AGL) 420 5600 410 4300
TRANSPORT WND (KTS) NW 4 W 12 W 5 W 7
VENT RATE (KT-FT) 1680 67200 2050 30100
MAX ADI EARLY 19 GEN POOR 59 GEN GOOD 28 FAIR 24 FAIR
MAX ADI LATE 3 VERY POOR 82 GOOD 3 VERY POOR 39 FAIR
MAX LVORI EARLY 10 1 7 2
MAX LVORI LATE 10 1 7 2
MIN VSBY EARLY 9 1 FOG 9 8
MIN VSBY LATE 1 FOG 9 9 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 0 0 0 10
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. NORTHWEST
WINDS AROUND 5 MPH.
FRIDAY
SUNNY. HIGHS AROUND 80. NORTHEAST WINDS AROUND 5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. EAST WINDS
AROUND 5 MPH.
SATURDAY AND SATURDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF
SHOWERS. LOWS IN THE UPPER 50S. HIGHS IN THE MID 70S. NORTHEAST
WINDS AROUND 5 MPH.
SUNDAY AND SUNDAY NIGHT
MOSTLY CLOUDY WITH SHOWERS LIKELY.
LOWS IN THE UPPER 50S. HIGHS IN THE MID 70S. SOUTHWEST WINDS
AROUND 5 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. WEST WINDS 5 TO
10 MPH.
MONDAY NIGHT AND TUESDAY
MOSTLY CLEAR. LOWS IN THE MID 50S.
HIGHS IN THE UPPER 70S. WEST WINDS 5 TO 10 MPH.
MAZ026-190800-
NORTHERN MIDDLESEX MA-
INCLUDING THE CITY OF AYER
408 PM EDT TUE AUG 18 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER PCLDY MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 20 10
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 61 (-3) 85 (+4) 63 84
RH % (24H TREND) 100 (0) 46 (-21) 90 51
20FT WND AM(MPH) LGT/VAR LGT/VAR
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT (FT-AGL) 410 6160 390 4700
TRANSPORT WND (KTS) S 4 W 12 W 6 W 7
VENT RATE (KT-FT) 1640 73920 2340 32900
MAX ADI EARLY 20 GEN POOR 64 GOOD 41 GEN GOOD 30 FAIR
MAX ADI LATE 2 VERY POOR 92 GOOD 3 VERY POOR 47 GEN GOOD
MAX LVORI EARLY 10 1 6 1
MAX LVORI LATE 10 1 6 1
MIN VSBY EARLY 9 1 FOG 9 9
MIN VSBY LATE 1 FOG 9 9 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 0 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. NORTHWEST
WINDS AROUND 5 MPH.
FRIDAY AND FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S.
HIGHS IN THE LOWER 80S. NORTHEAST WINDS AROUND 5 MPH.
SATURDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
UPPER 70S. EAST WINDS AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE UPPER 50S. NORTHEAST WINDS AROUND 5 MPH.
SUNDAY AND SUNDAY NIGHT
MOSTLY CLOUDY WITH SHOWERS LIKELY.
LOWS IN THE UPPER 50S. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS
AROUND 5 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. WEST WINDS 5 TO
10 MPH.
MONDAY NIGHT AND TUESDAY
MOSTLY CLEAR. LOWS IN THE MID 50S.
HIGHS AROUND 80. WEST WINDS AROUND 5 MPH.
MAZ002-190800-
WESTERN FRANKLIN MA-
INCLUDING THE CITY OF CHARLEMONT
408 PM EDT TUE AUG 18 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER PCLDY MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE NONE SHOWERS
CHANCE PRECIP (%) 10 20
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 56 (-8) 82 (+2) 58 79
RH % (24H TREND) 100 (0) 47 (-9) 97 49
20FT WND AM(MPH) LGT/VAR LGT/VAR
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00 0.01
PRECIP DURATION 0
PRECIP BEGIN 11 AM
PRECIP END 2 PM
MIXING HGT (FT-AGL) 430 5370 420 4150
TRANSPORT WND (KTS) W 6 W 11 W 5 W 7
VENT RATE (KT-FT) 2580 59070 2100 29050
MAX ADI EARLY 11 POOR 60 GEN GOOD 26 FAIR 19 GEN POOR
MAX ADI LATE 3 VERY POOR 77 GOOD 4 VERY POOR 41 GEN GOOD
MAX LVORI EARLY 9 1 7 2
MAX LVORI LATE 9 1 7 2
MIN VSBY EARLY 9 2 FOG 9 8
MIN VSBY LATE 2 FOG 9 9 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 0 0 0 10
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. NORTHWEST
WINDS AROUND 5 MPH.
FRIDAY
SUNNY. HIGHS IN THE UPPER 70S. NORTH WINDS AROUND
5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. LIGHT AND
VARIABLE WIND, BECOMING NORTH AROUND 5 MPH AFTER MIDNIGHT.
SATURDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
MID 70S. EAST WINDS AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE UPPER 50S. EAST WINDS AROUND 5 MPH.
SUNDAY AND SUNDAY NIGHT
MOSTLY CLOUDY WITH SHOWERS LIKELY AND
A CHANCE OF THUNDERSTORMS. LOWS IN THE UPPER 50S. HIGHS IN THE
MID 70S. WEST WINDS AROUND 5 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. WEST WINDS 5 TO
10 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 50S. WEST WINDS
AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. WEST WINDS AROUND
5 MPH.
MAZ003-190800-
EASTERN FRANKLIN MA-
INCLUDING THE CITIES OF GREENFIELD AND ORANGE
408 PM EDT TUE AUG 18 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER PCLDY MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10 10
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 59 (-6) 84 (+2) 61 82
RH % (24H TREND) 100 (0) 46 (-13) 100 49
20FT WND AM(MPH) LGT/VAR LGT/VAR
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT (FT-AGL) 420 5610 410 4320
TRANSPORT WND (KTS) NW 5 W 10 SW 4 W 6
VENT RATE (KT-FT) 2100 56100 1640 25920
MAX ADI EARLY 12 POOR 51 GEN GOOD 20 GEN POOR 16 GEN POOR
MAX ADI LATE 2 VERY POOR 76 GOOD 2 VERY POOR 37 FAIR
MAX LVORI EARLY 10 1 8 2
MAX LVORI LATE 10 1 8 2
MIN VSBY EARLY 9 1 FOG 9 9
MIN VSBY LATE 1 FOG 9 9 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 0 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. NORTHWEST
WINDS AROUND 5 MPH.
FRIDAY
SUNNY. HIGHS IN THE LOWER 80S. NORTH WINDS AROUND
5 MPH.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. NORTHEAST
WINDS AROUND 5 MPH.
SATURDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
UPPER 70S. EAST WINDS AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS
AROUND 60. EAST WINDS AROUND 5 MPH.
SUNDAY AND SUNDAY NIGHT
MOSTLY CLOUDY WITH SHOWERS LIKELY.
LOWS IN THE UPPER 50S. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS
AROUND 5 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. WEST WINDS 5 TO
10 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 50S. WEST WINDS
5 TO 10 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. WEST WINDS 5 TO
10 MPH.
MAZ008-190800-
WESTERN HAMPSHIRE MA-
INCLUDING THE CITY OF CHESTERFIELD
408 PM EDT TUE AUG 18 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER PCLDY MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10 10
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 56 (-8) 81 (+1) 59 79
RH % (24H TREND) 100 (0) 48 (-10) 96 54
20FT WND AM(MPH) LGT/VAR LGT/VAR
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT (FT-AGL) 430 5260 400 4030
TRANSPORT WND (KTS) NW 6 W 10 W 5 NW 7
VENT RATE (KT-FT) 2580 52600 2000 28210
MAX ADI EARLY 13 GEN POOR 58 GEN GOOD 27 FAIR 18 GEN POOR
MAX ADI LATE 3 VERY POOR 74 GOOD 4 VERY POOR 40 FAIR
MAX LVORI EARLY 8 1 6 2
MAX LVORI LATE 8 1 6 2
MIN VSBY EARLY 9 3 FOG 9 9
MIN VSBY LATE 5 FOG 9 9 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 0 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. NORTHWEST
WINDS AROUND 5 MPH.
FRIDAY AND FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 50S.
HIGHS IN THE UPPER 70S. NORTHEAST WINDS AROUND 5 MPH.
SATURDAY AND SATURDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF
SHOWERS. LOWS IN THE UPPER 50S. HIGHS IN THE MID 70S. NORTHEAST
WINDS AROUND 5 MPH.
SUNDAY AND SUNDAY NIGHT
MOSTLY CLOUDY WITH SHOWERS LIKELY AND
A CHANCE OF THUNDERSTORMS. LOWS IN THE UPPER 50S. HIGHS IN THE
MID 70S. WEST WINDS AROUND 5 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. WEST WINDS 5 TO
10 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 50S. WEST WINDS
AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. WEST WINDS AROUND
5 MPH.
MAZ010-190800-
EASTERN HAMPSHIRE MA-
INCLUDING THE CITIES OF AMHERST AND NORTHAMPTON
408 PM EDT TUE AUG 18 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER PCLDY MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE SHOWERS
CHANCE PRECIP (%) 10 20
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 60 (-6) 85 (+2) 62 83
RH % (24H TREND) 100 (0) 46 (-15) 97 51
20FT WND AM(MPH) LGT/VAR LGT/VAR
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT (FT-AGL) 410 5730 400 3970
TRANSPORT WND (KTS) NW 4 W 10 SW 4 NW 5
VENT RATE (KT-FT) 1640 57300 1600 19850
MAX ADI EARLY 11 POOR 35 FAIR 19 GEN POOR 16 GEN POOR
MAX ADI LATE 2 VERY POOR 72 GOOD 2 VERY POOR 31 FAIR
MAX LVORI EARLY 10 1 8 2
MAX LVORI LATE 10 1 8 2
MIN VSBY EARLY 9 3 FOG 9 8
MIN VSBY LATE 4 FOG 9 9 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. NORTHWEST
WINDS AROUND 5 MPH.
FRIDAY
SUNNY. HIGHS IN THE LOWER 80S. NORTH WINDS AROUND
5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. NORTHEAST
WINDS AROUND 5 MPH.
SATURDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
UPPER 70S. EAST WINDS AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS
AROUND 60. NORTHEAST WINDS AROUND 5 MPH.
SUNDAY AND SUNDAY NIGHT
MOSTLY CLOUDY WITH SHOWERS LIKELY AND
A CHANCE OF THUNDERSTORMS. LOWS AROUND 60. HIGHS IN THE UPPER
70S. SOUTHWEST WINDS AROUND 5 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. WEST WINDS 5 TO
10 MPH.
MONDAY NIGHT AND TUESDAY
MOSTLY CLEAR. LOWS IN THE UPPER 50S.
HIGHS IN THE UPPER 70S. WEST WINDS 5 TO 10 MPH.
MAZ009-190800-
WESTERN HAMPDEN MA-
INCLUDING THE CITY OF BLANDFORD
408 PM EDT TUE AUG 18 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER MCLEAR MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE SHOWERS
CHANCE PRECIP (%) 10 20
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 57 (-8) 82 (+2) 59 80
RH % (24H TREND) 100 (0) 49 (-13) 97 54
20FT WND AM(MPH) LGT/VAR LGT/VAR
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00 0.01
PRECIP DURATION 0
PRECIP BEGIN 2 PM
PRECIP END 6 PM
MIXING HGT (FT-AGL) 410 5300 360 3860
TRANSPORT WND (KTS) NW 6 W 10 W 5 NW 7
VENT RATE (KT-FT) 2460 53000 1800 27020
MAX ADI EARLY 28 FAIR 55 GEN GOOD 33 FAIR 17 GEN POOR
MAX ADI LATE 4 VERY POOR 72 GOOD 4 VERY POOR 38 FAIR
MAX LVORI EARLY 7 1 6 2
MAX LVORI LATE 7 1 6 2
MIN VSBY EARLY 9 7 9 9
MIN VSBY LATE 8 9 9 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 0 0 0 10
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. NORTHWEST
WINDS AROUND 5 MPH.
FRIDAY
SUNNY. HIGHS IN THE UPPER 70S. NORTH WINDS AROUND
5 MPH, BECOMING EAST IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. NORTHWEST
WINDS AROUND 5 MPH, BECOMING NORTHEAST AFTER MIDNIGHT.
SATURDAY AND SATURDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF
SHOWERS. LOWS IN THE UPPER 50S. HIGHS IN THE MID 70S. NORTHEAST
WINDS AROUND 5 MPH.
SUNDAY AND SUNDAY NIGHT
MOSTLY CLOUDY WITH SHOWERS LIKELY AND
A CHANCE OF THUNDERSTORMS. LOWS IN THE UPPER 50S. HIGHS IN THE
MID 70S. WEST WINDS AROUND 5 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. WEST WINDS 5 TO
10 MPH.
MONDAY NIGHT AND TUESDAY
MOSTLY CLEAR. LOWS IN THE MID 50S.
HIGHS IN THE UPPER 70S. WEST WINDS AROUND 5 MPH.
MAZ011-190800-
EASTERN HAMPDEN MA-
INCLUDING THE CITY OF SPRINGFIELD
408 PM EDT TUE AUG 18 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER PCLDY MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE SHOWERS
CHANCE PRECIP (%) 10 20
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 61 (-5) 86 (+3) 62 83
RH % (24H TREND) 100 (0) 43 (-16) 97 48
20FT WND AM(MPH) LGT/VAR LGT/VAR
20FT WND PM(MPH) LGT/VAR W 5 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00 0.02
PRECIP DURATION 0
PRECIP BEGIN 2 PM
PRECIP END 6 PM
MIXING HGT (FT-AGL) 410 5910 400 3830
TRANSPORT WND (KTS) W 4 W 10 SW 5 NW 6
VENT RATE (KT-FT) 1640 59100 2000 22980
MAX ADI EARLY 13 GEN POOR 34 FAIR 21 FAIR 17 GEN POOR
MAX ADI LATE 2 VERY POOR 77 GOOD 2 VERY POOR 30 FAIR
MAX LVORI EARLY 10 1 8 2
MAX LVORI LATE 10 1 8 2
MIN VSBY EARLY 9 6 FOG 9 8
MIN VSBY LATE 7 9 8 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 0 0 0 10
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. NORTHWEST
WINDS AROUND 5 MPH.
FRIDAY
SUNNY. HIGHS IN THE LOWER 80S. NORTH WINDS AROUND
5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. SOUTH WINDS
AROUND 5 MPH, BECOMING EAST AFTER MIDNIGHT.
SATURDAY AND SATURDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF
SHOWERS. LOWS AROUND 60. HIGHS IN THE UPPER 70S. NORTHEAST WINDS
AROUND 5 MPH.
SUNDAY AND SUNDAY NIGHT
MOSTLY CLOUDY WITH SHOWERS LIKELY AND
A CHANCE OF THUNDERSTORMS. LOWS AROUND 60. HIGHS IN THE UPPER
70S. SOUTHWEST WINDS AROUND 5 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. WEST WINDS 5 TO
10 MPH.
MONDAY NIGHT AND TUESDAY
MOSTLY CLEAR. LOWS IN THE UPPER 50S.
HIGHS AROUND 80. WEST WINDS 5 TO 10 MPH.
CTZ002-190800-
HARTFORD CT-
INCLUDING THE CITIES OF HARTFORD AND WINDSOR LOCKS
408 PM EDT TUE AUG 18 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER MCLEAR MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE SHOWERS
CHANCE PRECIP (%) 10 20
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 62 (-4) 86 (+2) 64 83
RH % (24H TREND) 100 (0) 43 (-16) 97 49
20FT WND AM(MPH) LGT/VAR LGT/VAR
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00 0.03
PRECIP DURATION 0
PRECIP BEGIN 2 PM
PRECIP END 6 PM
MIXING HGT (FT-AGL) 380 5910 380 3830
TRANSPORT WND (KTS) W 4 W 10 SW 5 NW 6
VENT RATE (KT-FT) 1520 59100 1900 22980
MAX ADI EARLY 16 GEN POOR 31 FAIR 24 FAIR 18 GEN POOR
MAX ADI LATE 2 VERY POOR 78 GOOD 3 VERY POOR 32 FAIR
MAX LVORI EARLY 9 1 7 2
MAX LVORI LATE 9 1 7 2
MIN VSBY EARLY 9 7 9 6 FOG
MIN VSBY LATE 8 9 7 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 0 0 0 10
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. NORTHWEST
WINDS AROUND 5 MPH.
FRIDAY AND FRIDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 60. HIGHS
IN THE LOWER 80S. NORTHEAST WINDS AROUND 5 MPH.
SATURDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
UPPER 70S. EAST WINDS AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE LOWER 60S. 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 AROUND 60. SOUTHWEST WINDS AROUND 5 MPH.
MONDAY THROUGH TUESDAY
MOSTLY CLEAR. LOWS IN THE UPPER 50S.
HIGHS AROUND 80. WEST WINDS 5 TO 10 MPH.
CTZ003-190800-
TOLLAND CT-
INCLUDING THE CITIES OF UNION AND VERNON
408 PM EDT TUE AUG 18 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER PCLDY MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE SHOWERS
CHANCE PRECIP (%) 10 20
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 61 (-3) 84 (+1) 63 82
RH % (24H TREND) 100 (0) 46 (-17) 97 54
20FT WND AM(MPH) LGT/VAR LGT/VAR
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00 0.03
PRECIP DURATION 0
PRECIP BEGIN 2 PM
PRECIP END 6 PM
MIXING HGT (FT-AGL) 400 5690 370 3610
TRANSPORT WND (KTS) W 4 W 10 SW 6 W 6
VENT RATE (KT-FT) 1600 56900 2220 21660
MAX ADI EARLY 17 GEN POOR 34 FAIR 20 GEN POOR 17 GEN POOR
MAX ADI LATE 2 VERY POOR 78 GOOD 3 VERY POOR 31 FAIR
MAX LVORI EARLY 10 1 8 3
MAX LVORI LATE 10 1 8 3
MIN VSBY EARLY 9 4 FOG 9 3 FOG
MIN VSBY LATE 6 FOG 9 5 FOG 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 0 0 0 10
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. NORTHWEST
WINDS AROUND 5 MPH.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. NORTHEAST WINDS
AROUND 5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. SOUTHEAST
WINDS AROUND 5 MPH.
SATURDAY AND SATURDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF
SHOWERS. LOWS AROUND 60. HIGHS IN THE UPPER 70S. NORTHEAST WINDS
AROUND 5 MPH.
SUNDAY
MOSTLY CLOUDY WITH SHOWERS LIKELY. 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
AROUND 60. SOUTHWEST WINDS AROUND 5 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. WEST WINDS 5 TO
10 MPH.
MONDAY NIGHT AND TUESDAY
MOSTLY CLEAR. LOWS IN THE UPPER 50S.
HIGHS IN THE UPPER 70S. WEST WINDS 5 TO 10 MPH.
CTZ004-190800-
WINDHAM CT-
INCLUDING THE CITIES OF PUTNAM AND WILLIMANTIC
408 PM EDT TUE AUG 18 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER PCLDY MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE SHOWERS
CHANCE PRECIP (%) 20 10 10 20
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 62 (-2) 84 (+2) 63 83
RH % (24H TREND) 100 (0) 51 (-21) 100 58
20FT WND AM(MPH) LGT/VAR LGT/VAR
20FT WND PM(MPH) LGT/VAR SW 5 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00 0.02
PRECIP DURATION 0
PRECIP BEGIN 2 PM
PRECIP END 6 PM
MIXING HGT (FT-AGL) 390 5610 360 3880
TRANSPORT WND (KTS) W 4 W 10 SW 6 W 7
VENT RATE (KT-FT) 1560 56100 2160 27160
MAX ADI EARLY 20 GEN POOR 39 FAIR 29 FAIR 16 GEN POOR
MAX ADI LATE 3 VERY POOR 77 GOOD 3 VERY POOR 35 FAIR
MAX LVORI EARLY 10 1 8 3
MAX LVORI LATE 10 1 8 3
MIN VSBY EARLY 9 2 FOG 9 3 FOG
MIN VSBY LATE 3 FOG 9 5 FOG 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 0 0 0 10
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. NORTHWEST
WINDS AROUND 5 MPH.
FRIDAY AND FRIDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 60. HIGHS
IN THE LOWER 80S. EAST WINDS AROUND 5 MPH.
SATURDAY AND SATURDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF
SHOWERS. LOWS IN THE LOWER 60S. HIGHS IN THE UPPER 70S. NORTHEAST
WINDS AROUND 5 MPH.
SUNDAY AND SUNDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF
SHOWERS. LOWS IN THE LOWER 60S. HIGHS IN THE UPPER 70S. SOUTHWEST
WINDS AROUND 5 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. WEST WINDS 5 TO
10 MPH.
MONDAY NIGHT AND TUESDAY
MOSTLY CLEAR. LOWS IN THE UPPER 50S.
HIGHS IN THE UPPER 70S. WEST WINDS AROUND 5 MPH.
RIZ001-190800-
NORTHWEST PROVIDENCE RI-
INCLUDING THE CITIES OF FOSTER AND SMITHFIELD
408 PM EDT TUE AUG 18 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER PCLDY MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE SHOWERS
CHANCE PRECIP (%) 20 10 10 20
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 63 (-1) 84 (+3) 64 82
RH % (24H TREND) 100 (0) 51 (-21) 97 56
20FT WND AM(MPH) LGT/VAR LGT/VAR
20FT WND PM(MPH) LGT/VAR SW 5 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT (FT-AGL) 380 5620 400 4130
TRANSPORT WND (KTS) W 5 W 11 SW 7 W 8
VENT RATE (KT-FT) 1900 61820 2800 33040
MAX ADI EARLY 24 FAIR 44 GEN GOOD 41 GEN GOOD 17 GEN POOR
MAX ADI LATE 3 VERY POOR 78 GOOD 4 VERY POOR 43 GEN GOOD
MAX LVORI EARLY 10 1 7 2
MAX LVORI LATE 10 1 7 2
MIN VSBY EARLY 9 3 FOG 9 8
MIN VSBY LATE 2 FOG 9 8 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 0 0 0 10
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
THURSDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 60. NORTHWEST WINDS
AROUND 5 MPH.
FRIDAY AND FRIDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 60. HIGHS
IN THE LOWER 80S. EAST WINDS AROUND 5 MPH.
SATURDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
UPPER 70S. EAST WINDS AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. 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 IN THE UPPER 70S. SOUTHWEST
WINDS AROUND 5 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. WEST WINDS AROUND
5 MPH.
MONDAY NIGHT AND TUESDAY
MOSTLY CLEAR. LOWS IN THE UPPER 50S.
HIGHS IN THE UPPER 70S. WEST WINDS AROUND 5 MPH.
RIZ002-190800-
SOUTHEAST PROVIDENCE RI-
INCLUDING THE CITY OF PROVIDENCE
408 PM EDT TUE AUG 18 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER PCLDY MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10 10 10 10
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 65 (-2) 84 (+2) 66 83
RH % (24H TREND) 100 (0) 53 (-19) 93 58
20FT WND AM(MPH) LGT/VAR LGT/VAR
20FT WND PM(MPH) LGT/VAR SW 5 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT (FT-AGL) 430 5380 420 4330
TRANSPORT WND (KTS) W 5 SW 11 SW 5 W 8
VENT RATE (KT-FT) 2150 59180 2100 34640
MAX ADI EARLY 15 GEN POOR 40 FAIR 39 FAIR 15 GEN POOR
MAX ADI LATE 3 VERY POOR 73 GOOD 4 VERY POOR 48 GEN GOOD
MAX LVORI EARLY 10 1 7 2
MAX LVORI LATE 10 1 7 2
MIN VSBY EARLY 9 5 FOG 9 9
MIN VSBY LATE 3 FOG 9 9 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 0 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. NORTHWEST
WINDS AROUND 5 MPH.
FRIDAY AND FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S.
HIGHS IN THE LOWER 80S. NORTHEAST WINDS AROUND 5 MPH.
SATURDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
UPPER 70S. EAST WINDS AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE LOWER 60S. NORTHEAST WINDS AROUND 5 MPH.
SUNDAY AND SUNDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS.
LOWS IN THE LOWER 60S. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS
AROUND 5 MPH.
MONDAY
MOSTLY SUNNY. HIGHS AROUND 80. WEST WINDS 5 TO 10 MPH.
MONDAY NIGHT AND TUESDAY
MOSTLY CLEAR. LOWS AROUND 60. HIGHS
AROUND 80. WEST WINDS AROUND 5 MPH.
RIZ003-190800-
WESTERN KENT RI-
INCLUDING THE CITIES OF COVENTRY AND WEST GREENWICH
408 PM EDT TUE AUG 18 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER PCLDY MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10 10 10 20
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 64 (-1) 83 (+2) 65 82
RH % (24H TREND) 100 (0) 56 (-21) 97 60
20FT WND AM(MPH) LGT/VAR LGT/VAR
20FT WND PM(MPH) LGT/VAR SW 5 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT (FT-AGL) 390 5040 400 3920
TRANSPORT WND (KTS) SW 6 W 11 W 5 W 8
VENT RATE (KT-FT) 2340 55440 2000 31360
MAX ADI EARLY 16 GEN POOR 38 FAIR 30 FAIR 19 GEN POOR
MAX ADI LATE 3 VERY POOR 69 GOOD 4 VERY POOR 45 GEN GOOD
MAX LVORI EARLY 10 1 7 3
MAX LVORI LATE 10 1 7 3
MIN VSBY EARLY 9 3 FOG 9 5 FOG
MIN VSBY LATE 3 FOG 9 6 FOG 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 0 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. NORTHWEST
WINDS AROUND 5 MPH.
FRIDAY AND FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S.
HIGHS AROUND 80. EAST WINDS AROUND 5 MPH.
SATURDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
MID 70S. EAST WINDS AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY WITH SHOWERS LIKELY. LOWS IN THE
LOWER 60S. NORTHEAST WINDS AROUND 5 MPH.
SUNDAY AND SUNDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS.
LOWS IN THE LOWER 60S. HIGHS IN THE UPPER 70S. WEST WINDS AROUND
5 MPH.
MONDAY THROUGH TUESDAY
MOSTLY CLEAR. LOWS IN THE LOWER 60S.
HIGHS IN THE UPPER 70S. WEST WINDS 5 TO 10 MPH.
RIZ004-190800-
EASTERN KENT RI-
INCLUDING THE CITIES OF EAST GREENWICH, WARWICK, AND WEST WARWICK
408 PM EDT TUE AUG 18 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER PCLDY MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10 10 10 10
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 66 (-1) 84 (+2) 67 83
RH % (24H TREND) 100 (0) 55 (-17) 93 58
20FT WND AM(MPH) LGT/VAR LGT/VAR
20FT WND PM(MPH) LGT/VAR SW 5 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT (FT-AGL) 430 4710 430 3970
TRANSPORT WND (KTS) SW 6 SW 11 SW 5 SW 8
VENT RATE (KT-FT) 2580 51810 2150 31760
MAX ADI EARLY 14 GEN POOR 34 FAIR 31 FAIR 14 GEN POOR
MAX ADI LATE 3 VERY POOR 63 GOOD 4 VERY POOR 42 GEN GOOD
MAX LVORI EARLY 10 1 7 2
MAX LVORI LATE 10 1 7 2
MIN VSBY EARLY 9 5 FOG 9 7
MIN VSBY LATE 4 FOG 9 8 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 0 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. NORTHWEST
WINDS AROUND 5 MPH.
FRIDAY AND FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S.
HIGHS AROUND 80. NORTHEAST WINDS AROUND 5 MPH.
SATURDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
UPPER 70S. EAST WINDS AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY WITH SHOWERS LIKELY. LOWS IN THE
MID 60S. NORTHEAST WINDS AROUND 5 MPH.
SUNDAY AND SUNDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS.
LOWS IN THE MID 60S. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS
AROUND 5 MPH.
MONDAY THROUGH TUESDAY
MOSTLY CLEAR. LOWS IN THE LOWER 60S.
HIGHS AROUND 80. SOUTHWEST WINDS 5 TO 10 MPH.
RIZ005-190800-
BRISTOL RI-
INCLUDING THE CITY OF BRISTOL
408 PM EDT TUE AUG 18 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER PCLDY MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10 10 10 10
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 67 (-1) 83 (+1) 68 83
RH % (24H TREND) 100 (0) 61 (-13) 93 63
20FT WND AM(MPH) LGT/VAR LGT/VAR
20FT WND PM(MPH) LGT/VAR S 6 SW 5 LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT (FT-AGL) 430 3780 430 2990
TRANSPORT WND (KTS) SW 5 S 11 S 9 SW 7
VENT RATE (KT-FT) 2150 41580 3870 20930
MAX ADI EARLY 14 GEN POOR 26 FAIR 23 FAIR 13 GEN POOR
MAX ADI LATE 4 VERY POOR 52 GEN GOOD 4 VERY POOR 30 FAIR
MAX LVORI EARLY 10 2 7 3
MAX LVORI LATE 10 2 7 3
MIN VSBY EARLY 9 4 FOG 9 5 FOG
MIN VSBY LATE 4 FOG 9 7 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 0 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. WEST WINDS
AROUND 5 MPH, BECOMING NORTHWEST AFTER MIDNIGHT.
FRIDAY AND FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S.
HIGHS AROUND 80. NORTHEAST WINDS AROUND 5 MPH.
SATURDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
UPPER 70S. EAST WINDS 5 TO 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY WITH SHOWERS LIKELY. LOWS IN THE
MID 60S. NORTHEAST WINDS 5 TO 10 MPH.
SUNDAY AND SUNDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS.
LOWS IN THE MID 60S. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS 5 TO
10 MPH.
MONDAY
MOSTLY SUNNY. HIGHS AROUND 80. WEST WINDS 5 TO 10 MPH.
MONDAY NIGHT AND TUESDAY
MOSTLY CLEAR. LOWS IN THE LOWER 60S.
HIGHS IN THE UPPER 70S. SOUTHWEST WINDS 5 TO 10 MPH.
RIZ006-190800-
WASHINGTON RI-
INCLUDING THE CITIES OF NARRAGANSETT AND WESTERLY
408 PM EDT TUE AUG 18 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER PCLDY MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10 10 10
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 65 (-2) 83 (+3) 66 83
RH % (24H TREND) 100 (0) 57 (-17) 100 59
20FT WND AM(MPH) LGT/VAR LGT/VAR
20FT WND PM(MPH) LGT/VAR SW 6 LGT/VAR W 5
PRECIP AMOUNT 0.00 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT (FT-AGL) 400 4190 430 3390
TRANSPORT WND (KTS) SW 5 SW 11 SW 6 SW 7
VENT RATE (KT-FT) 2000 46090 2580 23730
MAX ADI EARLY 12 POOR 26 FAIR 20 GEN POOR 13 GEN POOR
MAX ADI LATE 4 VERY POOR 50 GEN GOOD 4 VERY POOR 27 FAIR
MAX LVORI EARLY 10 2 8 3
MAX LVORI LATE 10 2 8 3
MIN VSBY EARLY 9 3 FOG 9 1 FOG
MIN VSBY LATE 3 FOG 9 2 FOG 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 0 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. WEST
WINDS AROUND 5 MPH, BECOMING NORTHWEST AFTER MIDNIGHT.
FRIDAY AND FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S.
HIGHS IN THE UPPER 70S. EAST WINDS AROUND 5 MPH.
SATURDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
MID 70S. EAST WINDS 5 TO 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY WITH SHOWERS LIKELY. LOWS IN THE
MID 60S. NORTHEAST WINDS 5 TO 10 MPH.
SUNDAY AND SUNDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS.
LOWS IN THE MID 60S. HIGHS IN THE UPPER 70S. WEST WINDS 5 TO
10 MPH.
MONDAY THROUGH TUESDAY
MOSTLY CLEAR. LOWS IN THE LOWER 60S.
HIGHS IN THE UPPER 70S. SOUTHWEST WINDS 10 TO 15 MPH.
RIZ007-190800-
NEWPORT RI-
INCLUDING THE CITY OF NEWPORT
408 PM EDT TUE AUG 18 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER PCLDY MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10 10 10
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 68 (0) 82 (+2) 69 82
RH % (24H TREND) 100 (0) 61 (-13) 93 59
20FT WND AM(MPH) LGT/VAR LGT/VAR
20FT WND PM(MPH) LGT/VAR S 8 SW 6 SW 5
PRECIP AMOUNT 0.00 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT (FT-AGL) 400 2530 430 2740
TRANSPORT WND (KTS) SW 7 SW 11 SW 9 SW 7
VENT RATE (KT-FT) 2800 27830 3870 19180
MAX ADI EARLY 9 POOR 16 GEN POOR 15 GEN POOR 12 POOR
MAX ADI LATE 4 VERY POOR 26 FAIR 5 VERY POOR 20 GEN POOR
MAX LVORI EARLY 9 3 6 3
MAX LVORI LATE 9 3 6 3
MIN VSBY EARLY 9 3 FOG 8 1 FOG
MIN VSBY LATE 3 FOG 9 2 FOG 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 0 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 60S. WEST WINDS
5 TO 10 MPH, BECOMING NORTHWEST AFTER MIDNIGHT.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTHEAST WINDS
5 TO 10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 60S. EAST WINDS
5 TO 10 MPH.
SATURDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
MID 70S. EAST WINDS 5 TO 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY WITH SHOWERS LIKELY. LOWS IN THE
MID 60S. NORTHEAST WINDS 5 TO 10 MPH.
SUNDAY
MOSTLY CLOUDY WITH SHOWERS LIKELY. HIGHS IN THE UPPER
70S. EAST WINDS 5 TO 10 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 TUESDAY
MOSTLY CLEAR. LOWS IN THE MID 60S.
HIGHS IN THE UPPER 70S. SOUTHWEST WINDS 10 TO 15 MPH.
RIZ008-190800-
BLOCK ISLAND RI-
INCLUDING THE CITY OF NEW SHOREHAM
408 PM EDT TUE AUG 18 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER PCLDY MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10 10 10
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 70 (+3) 78 (+2) 71 79
RH % (24H TREND) 100 (0) 76 (-8) 93 74
20FT WND AM(MPH) LGT/VAR LGT/VAR
20FT WND PM(MPH) SW 5 SW 7 SW 7 SW 6
PRECIP AMOUNT 0.00 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT (FT-AGL) 450 650 410 880
TRANSPORT WND (KTS) SW 8 SW 8 SW 11 NW 6
VENT RATE (KT-FT) 3600 5200 4510 5280
MAX ADI EARLY 10 POOR 10 POOR 16 GEN POOR 11 POOR
MAX ADI LATE 7 POOR 14 GEN POOR 8 POOR 12 POOR
MAX LVORI EARLY 9 4 6 4
MAX LVORI LATE 9 4 6 4
MIN VSBY EARLY 9 7 9 1 FOG
MIN VSBY LATE 7 9 1 FOG 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 0 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 60S. WEST
WINDS AROUND 5 MPH, BECOMING NORTHWEST AFTER MIDNIGHT.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTHEAST WINDS
AROUND 5 MPH, BECOMING EAST IN THE AFTERNOON.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE UPPER 60S. EAST WINDS AROUND 5 MPH.
SATURDAY AND SATURDAY NIGHT
MOSTLY CLOUDY WITH SHOWERS LIKELY.
LOWS IN THE UPPER 60S. HIGHS IN THE MID 70S. NORTHEAST WINDS 5 TO
10 MPH.
SUNDAY
PARTLY SUNNY WITH SHOWERS LIKELY. HIGHS IN THE UPPER
70S. EAST WINDS 5 TO 10 MPH, BECOMING SOUTH IN THE AFTERNOON.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE UPPER 60S. SOUTHWEST WINDS 5 TO 10 MPH.
MONDAY THROUGH TUESDAY
MOSTLY CLEAR. LOWS IN THE UPPER 60S.
HIGHS IN THE UPPER 70S. SOUTHWEST WINDS 5 TO 10 MPH.
MAZ017-190800-
NORTHERN BRISTOL MA-
INCLUDING THE CITY OF TAUNTON
408 PM EDT TUE AUG 18 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER PCLDY MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10 10 10 10
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 65 (-1) 85 (+3) 65 84
RH % (24H TREND) 100 (0) 51 (-18) 97 56
20FT WND AM(MPH) LGT/VAR LGT/VAR
20FT WND PM(MPH) LGT/VAR SW 5 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT (FT-AGL) 410 5480 430 4140
TRANSPORT WND (KTS) SW 4 SW 11 SW 5 W 8
VENT RATE (KT-FT) 1640 60280 2150 33120
MAX ADI EARLY 14 GEN POOR 40 FAIR 35 FAIR 14 GEN POOR
MAX ADI LATE 3 VERY POOR 78 GOOD 4 VERY POOR 47 GEN GOOD
MAX LVORI EARLY 10 1 7 2
MAX LVORI LATE 10 1 7 2
MIN VSBY EARLY 9 2 FOG 9 6 FOG
MIN VSBY LATE 2 FOG 9 8 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 0 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. WEST
WINDS AROUND 5 MPH, BECOMING NORTHWEST AFTER MIDNIGHT.
FRIDAY AND FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S.
HIGHS IN THE LOWER 80S. NORTHEAST WINDS AROUND 5 MPH.
SATURDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
UPPER 70S. EAST WINDS AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. 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 IN THE UPPER 70S. SOUTHWEST
WINDS AROUND 5 MPH.
MONDAY
MOSTLY SUNNY. HIGHS AROUND 80. WEST WINDS 5 TO 10 MPH.
MONDAY NIGHT AND TUESDAY
MOSTLY CLEAR. LOWS IN THE UPPER 50S.
HIGHS AROUND 80. WEST WINDS AROUND 5 MPH.
MAZ018-190800-
WESTERN PLYMOUTH MA-
INCLUDING THE CITY OF BROCKTON
408 PM EDT TUE AUG 18 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10 10 10 10
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 64 (-2) 84 (+4) 65 84
RH % (24H TREND) 100 (0) 51 (-21) 97 55
20FT WND AM(MPH) LGT/VAR LGT/VAR
20FT WND PM(MPH) LGT/VAR SW 5 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT (FT-AGL) 410 5760 430 4090
TRANSPORT WND (KTS) SE 5 SW 11 SW 6 W 7
VENT RATE (KT-FT) 2050 63360 2580 28630
MAX ADI EARLY 13 GEN POOR 38 FAIR 43 GEN GOOD 20 GEN POOR
MAX ADI LATE 3 VERY POOR 82 GOOD 4 VERY POOR 43 GEN GOOD
MAX LVORI EARLY 10 1 7 3
MAX LVORI LATE 10 1 7 3
MIN VSBY EARLY 9 2 FOG 9 4 FOG
MIN VSBY LATE 2 FOG 9 6 FOG 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 0 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTHWEST
WINDS AROUND 5 MPH, BECOMING NORTHWEST AFTER MIDNIGHT.
FRIDAY AND FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S.
HIGHS IN THE UPPER 70S. NORTHEAST WINDS AROUND 5 MPH.
SATURDAY AND SATURDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF
SHOWERS. LOWS IN THE LOWER 60S. HIGHS IN THE UPPER 70S. NORTHEAST
WINDS AROUND 5 MPH.
SUNDAY AND SUNDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF
SHOWERS. LOWS IN THE LOWER 60S. HIGHS IN THE UPPER 70S. SOUTHWEST
WINDS AROUND 5 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. WEST WINDS 5 TO
10 MPH.
MONDAY NIGHT AND TUESDAY
MOSTLY CLEAR. LOWS IN THE UPPER 50S.
HIGHS AROUND 80. SOUTHWEST WINDS AROUND 5 MPH.
MAZ019-190800-
EASTERN PLYMOUTH MA-
INCLUDING THE CITY OF PLYMOUTH
408 PM EDT TUE AUG 18 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10 10 10 10
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 64 (-2) 84 (+8) 66 82
RH % (24H TREND) 100 (0) 50 (-26) 97 53
20FT WND AM(MPH) LGT/VAR LGT/VAR
20FT WND PM(MPH) LGT/VAR S 5 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT (FT-AGL) 420 3670 400 2900
TRANSPORT WND (KTS) SE 5 SW 8 SW 7 NW 6
VENT RATE (KT-FT) 2100 29360 2800 17400
MAX ADI EARLY 8 POOR 20 GEN POOR 13 GEN POOR 13 GEN POOR
MAX ADI LATE 3 VERY POOR 29 FAIR 4 VERY POOR 17 GEN POOR
MAX LVORI EARLY 9 3 6 3
MAX LVORI LATE 9 3 6 3
MIN VSBY EARLY 8 2 FOG 8 5 FOG
MIN VSBY LATE 2 FOG 9 6 FOG 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 0 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 60S. SOUTH WINDS
AROUND 5 MPH, BECOMING NORTHWEST AFTER MIDNIGHT.
FRIDAY AND FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S.
HIGHS IN THE MID 70S. EAST WINDS 5 TO 10 MPH.
SATURDAY AND SATURDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF
SHOWERS. LOWS IN THE MID 60S. HIGHS IN THE MID 70S. NORTHEAST
WINDS 5 TO 10 MPH.
SUNDAY AND SUNDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF
SHOWERS. LOWS IN THE MID 60S. HIGHS IN THE UPPER 70S. SOUTHWEST
WINDS 5 TO 10 MPH.
MONDAY THROUGH TUESDAY
MOSTLY CLEAR. LOWS IN THE MID 60S.
HIGHS AROUND 80. SOUTHWEST WINDS 5 TO 10 MPH.
MAZ020-190800-
SOUTHERN BRISTOL MA-
INCLUDING THE CITIES OF FALL RIVER AND NEW BEDFORD
408 PM EDT TUE AUG 18 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER PCLDY MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10 10 10
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 66 (-1) 84 (+4) 66 85
RH % (24H TREND) 100 (0) 59 (-10) 97 57
20FT WND AM(MPH) LGT/VAR LGT/VAR
20FT WND PM(MPH) LGT/VAR SW 7 SW 5 LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT (FT-AGL) 420 4430 430 3890
TRANSPORT WND (KTS) SW 6 SW 12 SW 6 SW 8
VENT RATE (KT-FT) 2520 53160 2580 31120
MAX ADI EARLY 14 GEN POOR 31 FAIR 30 FAIR 17 GEN POOR
MAX ADI LATE 4 VERY POOR 57 GEN GOOD 4 VERY POOR 38 FAIR
MAX LVORI EARLY 9 2 7 3
MAX LVORI LATE 9 2 7 3
MIN VSBY EARLY 9 3 FOG 7 1 FOG
MIN VSBY LATE 2 FOG 9 2 FOG 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 0 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. WEST
WINDS 5 TO 10 MPH, BECOMING NORTHWEST AFTER MIDNIGHT.
FRIDAY
MOSTLY SUNNY. HIGHS AROUND 80. NORTHEAST WINDS 5 TO
10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. EAST WINDS
5 TO 10 MPH.
SATURDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
MID 70S. EAST WINDS 5 TO 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY WITH SHOWERS LIKELY. LOWS IN THE
MID 60S. NORTHEAST WINDS 5 TO 10 MPH.
SUNDAY
MOSTLY CLOUDY WITH SHOWERS LIKELY. HIGHS IN THE UPPER
70S. EAST WINDS 5 TO 10 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 TUESDAY
MOSTLY CLEAR. LOWS IN THE MID 60S.
HIGHS IN THE UPPER 70S. SOUTHWEST WINDS 10 TO 15 MPH.
MAZ021-190800-
SOUTHERN PLYMOUTH MA-
INCLUDING THE CITY OF MATTAPOISETT
408 PM EDT TUE AUG 18 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER PCLDY MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10 10
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 66 (-1) 84 (+4) 67 84
RH % (24H TREND) 100 (0) 61 (-11) 97 59
20FT WND AM(MPH) LGT/VAR LGT/VAR
20FT WND PM(MPH) LGT/VAR SW 7 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT (FT-AGL) 420 4070 430 3600
TRANSPORT WND (KTS) S 6 SW 12 SW 6 SW 7
VENT RATE (KT-FT) 2520 48840 2580 25200
MAX ADI EARLY 12 POOR 37 FAIR 31 FAIR 23 FAIR
MAX ADI LATE 4 VERY POOR 56 GEN GOOD 4 VERY POOR 29 FAIR
MAX LVORI EARLY 9 2 7 3
MAX LVORI LATE 9 2 7 3
MIN VSBY EARLY 9 3 FOG 8 1 FOG
MIN VSBY LATE 2 FOG 9 1 FOG 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 0 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 60S. SOUTHWEST
WINDS AROUND 5 MPH, BECOMING NORTHWEST AFTER MIDNIGHT.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTHEAST WINDS
AROUND 5 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. EAST WINDS
AROUND 5 MPH.
SATURDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
UPPER 70S. EAST WINDS 5 TO 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY WITH SHOWERS LIKELY. LOWS IN THE
MID 60S. NORTHEAST WINDS 5 TO 10 MPH.
SUNDAY
MOSTLY CLOUDY WITH SHOWERS LIKELY. HIGHS IN THE UPPER
70S. EAST 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 TUESDAY
MOSTLY CLEAR. LOWS IN THE MID 60S.
HIGHS AROUND 80. SOUTHWEST WINDS 10 TO 15 MPH.
MAZ022-190800-
BARNSTABLE MA-
INCLUDING THE CITIES OF CHATHAM, FALMOUTH, AND PROVINCETOWN
408 PM EDT TUE AUG 18 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 67 (0) 82 (+6) 69 82
RH % (24H TREND) 100 (0) 67 (-12) 97 65
20FT WND AM(MPH) LGT/VAR LGT/VAR
20FT WND PM(MPH) LGT/VAR SW 7 SW 5 W 5
PRECIP AMOUNT 0.00 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT (FT-AGL) 420 2580 430 1930
TRANSPORT WND (KTS) SW 5 SW 13 SW 8 W 6
VENT RATE (KT-FT) 2100 33540 3440 11580
MAX ADI EARLY 9 POOR 19 GEN POOR 24 FAIR 15 GEN POOR
MAX ADI LATE 4 VERY POOR 32 FAIR 7 POOR 14 GEN POOR
MAX LVORI EARLY 9 4 6 4
MAX LVORI LATE 9 4 6 4
MIN VSBY EARLY 4 FOG 2 FOG 7 4 FOG
MIN VSBY LATE 2 FOG 9 5 FOG 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 0 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 60S. SOUTHWEST
WINDS AROUND 5 MPH, BECOMING WEST AFTER MIDNIGHT.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTHEAST WINDS
5 TO 10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 60S. EAST WINDS
AROUND 5 MPH.
SATURDAY AND SATURDAY NIGHT
MOSTLY CLOUDY. SHOWERS LIKELY.
LOWS IN THE UPPER 60S. HIGHS IN THE MID 70S. EAST WINDS 5 TO
10 MPH.
SUNDAY
MOSTLY CLOUDY WITH SHOWERS LIKELY. HIGHS IN THE UPPER
70S. EAST WINDS 5 TO 10 MPH, BECOMING SOUTH IN THE AFTERNOON.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE UPPER 60S. SOUTHWEST WINDS 5 TO 10 MPH.
MONDAY THROUGH TUESDAY
MOSTLY CLEAR. LOWS IN THE UPPER 60S.
HIGHS AROUND 80. SOUTHWEST WINDS 10 TO 15 MPH.
MAZ023-190800-
DUKES MA-
INCLUDING THE CITY OF VINEYARD HAVEN
408 PM EDT TUE AUG 18 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER MCLEAR PCLDY PCLDY PCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10 10 10
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 68 (0) 81 (+3) 70 83
RH % (24H TREND) 100 (0) 67 (-7) 97 61
20FT WND AM(MPH) LGT/VAR LGT/VAR
20FT WND PM(MPH) LGT/VAR SW 8 SW 6 SW 6
PRECIP AMOUNT 0.00 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT (FT-AGL) 440 1630 440 2110
TRANSPORT WND (KTS) SW 9 SW 12 SW 9 SW 8
VENT RATE (KT-FT) 3960 19560 3960 16880
MAX ADI EARLY 10 POOR 19 GEN POOR 21 FAIR 15 GEN POOR
MAX ADI LATE 7 POOR 25 FAIR 8 POOR 20 GEN POOR
MAX LVORI EARLY 9 4 6 3
MAX LVORI LATE 9 4 6 3
MIN VSBY EARLY 8 6 FOG 5 FOG 1 FOG
MIN VSBY LATE 3 FOG 9 1 FOG 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 0 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 60S. WEST
WINDS 5 TO 10 MPH.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTHEAST WINDS
5 TO 10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE MID 60S. EAST WINDS 5 TO 10 MPH.
SATURDAY AND SATURDAY NIGHT
MOSTLY CLOUDY. SHOWERS LIKELY.
LOWS IN THE UPPER 60S. HIGHS IN THE MID 70S. EAST WINDS 5 TO
10 MPH.
SUNDAY
MOSTLY CLOUDY WITH SHOWERS LIKELY. HIGHS IN THE UPPER
70S. EAST WINDS 5 TO 10 MPH, BECOMING SOUTH IN THE AFTERNOON.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE UPPER 60S. SOUTHWEST WINDS 5 TO 10 MPH.
MONDAY THROUGH TUESDAY
MOSTLY CLEAR. LOWS IN THE UPPER 60S.
HIGHS IN THE UPPER 70S. SOUTHWEST WINDS 10 TO 15 MPH.
MAZ024-190800-
NANTUCKET MA-
INCLUDING THE CITY OF NANTUCKET
408 PM EDT TUE AUG 18 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER PCLDY PCLDY PCLDY MCLEAR
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%)
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 66 (0) 78 (+2) 69 80
RH % (24H TREND) 100 (0) 77 (-5) 100 74
20FT WND AM(MPH) SW 5 LGT/VAR
20FT WND PM(MPH) LGT/VAR S 8 SW 6 SW 6
PRECIP AMOUNT 0.00 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT (FT-AGL) 880 1540 520 1150
TRANSPORT WND (KTS) W 6 SW 12 SW 9 SW 9
VENT RATE (KT-FT) 5280 18480 4680 10350
MAX ADI EARLY 14 GEN POOR 21 FAIR 24 FAIR 12 POOR
MAX ADI LATE 6 VERY POOR 24 FAIR 7 POOR 15 GEN POOR
MAX LVORI EARLY 9 4 7 4
MAX LVORI LATE 9 4 7 4
MIN VSBY EARLY 3 FOG 2 FOG 4 FOG 1 FOG
MIN VSBY LATE 2 FOG 7 1 FOG 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 0 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
THURSDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE UPPER 60S. WEST WINDS 5 TO 10 MPH.
FRIDAY
MOSTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE MID
70S. NORTHEAST WINDS 5 TO 10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE MID 60S. EAST WINDS 5 TO 10 MPH.
SATURDAY
MOSTLY CLOUDY WITH SHOWERS LIKELY. HIGHS IN THE MID
70S. EAST WINDS 10 TO 15 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY WITH SHOWERS LIKELY. 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
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. WEST WINDS 10 TO
15 MPH.
MONDAY NIGHT AND TUESDAY
MOSTLY CLEAR. LOWS IN THE UPPER 60S.
HIGHS IN THE UPPER 70S. SOUTHWEST WINDS 10 TO 15 MPH.
OUTLOOK 8 TO 14 DAYS
TEMPERATURES NEAR NORMAL. PRECIPITATION ABOVE NORMAL.
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