690
FNUS51 KBOX 202008
FWFBOX
FIRE WEATHER PLANNING FORECAST FOR SOUTHERN NEW ENGLAND
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
407 PM EDT SUN SEP 20 2026
DISCUSSION
CLOUDY AND WET THROUGH THE AFTERNOON TODAY ACROSS MUCH OF THE
REGION, CLEARING OUT HEADING INTO MONDAY MORNING. WINDS PICK UP
FROM THE NE TOMORROW WITH GUSTS TO 20-25 MPH POSSIBLE TOWARDS THE
CAPE AND ISLANDS.
MINIMUM RELATIVE HUMIDITY VALUES TOMORROW RANGE BETWEEN 50 AND
70 PERCENT, WITH HIGHER VALUES TOWARDS THE CAPE AND ISLANDS.
OUTLOOK...TUESDAY THROUGH SATURDAY
CHANCES FOR SOME SHOWERS RETURN TUESDAY AND COOLER THAN NORMAL
TEMPERATURES CONTINUE THROUGH THE REST OF THE WEEK. STRONG NE
WINDS MAY IMPACT THE REGION LATER THIS WEEK AS A COASTAL STORM
COULD APPROACH THE REGION. WITH THIS POSSIBILITY, RAIN COULD
RETURN HEADING INTO THE WEEKEND.
MAZ015-210800-
SUFFOLK MA-
INCLUDING THE CITY OF BOSTON
407 PM EDT SUN SEP 20 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER CLOUDY PCLDY MCLDY MCLDY
PRECIP TYPE RAIN NONE NONE NONE
CHANCE PRECIP (%) 100 20 10
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 55 (+4) 67 (+5) 52 62
RH % (24H TREND) 100 (+3) 49 (-2) 90 64
20FT WND AM(MPH) N 8 G18 NE 10 G18
20FT WND PM(MPH) LGT/VAR NE 8 G17 NE 5 NE 11 G18
PRECIP AMOUNT 0.25 0.00 0.00 0.00
PRECIP DURATION 8
PRECIP BEGIN 6 PM
PRECIP END 6 AM
MIXING HGT (FT-AGL) 430 3390 480 4020
TRANSPORT WND (KTS) SE 8 NE 13 NE 8 NE 15
VENT RATE (KT-FT) 3440 44070 3840 60300
MAX ADI EARLY 8 POOR 42 GEN GOOD 16 GEN POOR 17 GEN POOR
MAX ADI LATE 14 GEN POOR 42 GEN GOOD 17 GEN POOR 1 VERY POOR
MAX LVORI EARLY 9 3 4 4
MAX LVORI LATE 9 3 4 4
MIN VSBY EARLY 1 FOG 4 FOG 10 9
MIN VSBY LATE 0 FOG 10 10 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 60 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 50S. NORTHEAST
WINDS 10 TO 15 MPH.
WEDNESDAY THROUGH THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE
LOWER 50S. HIGHS IN THE LOWER 60S. NORTHEAST WINDS 15 TO 20 MPH.
FRIDAY THROUGH SUNDAY
BREEZY. MOSTLY CLOUDY WITH A CHANCE OF
SHOWERS. LOWS IN THE LOWER 50S. HIGHS IN THE MID 60S. NORTHEAST
WINDS 20 TO 25 MPH.
MAZ016-210800-
EASTERN NORFOLK MA-
INCLUDING THE CITY OF QUINCY
407 PM EDT SUN SEP 20 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER CLOUDY MCLDY MCLDY MCLDY
PRECIP TYPE RAIN NONE NONE SHOWERS
CHANCE PRECIP (%) 100 20 20
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 56 (+6) 63 (+1) 51 62
RH % (24H TREND) 100 (+3) 56 (+5) 90 65
20FT WND AM(MPH) N 9 G19 NE 11 G18
20FT WND PM(MPH) LGT/VAR NE 9 G18 NE 6 NE 11 G18
PRECIP AMOUNT 0.22 0.00 0.00 0.00
PRECIP DURATION 8
PRECIP BEGIN 6 PM
PRECIP END 6 AM
MIXING HGT (FT-AGL) 410 2940 480 3790
TRANSPORT WND (KTS) SE 7 NE 16 NE 9 NE 16
VENT RATE (KT-FT) 2870 47040 4320 60640
MAX ADI EARLY 8 POOR 15 GEN POOR 20 GEN POOR 19 GEN POOR
MAX ADI LATE 14 GEN POOR 43 GEN GOOD 20 GEN POOR 1 VERY POOR
MAX LVORI EARLY 9 4 4 4
MAX LVORI LATE 9 4 4 4
MIN VSBY EARLY 2 FOG 3 FOG 10 9
MIN VSBY LATE 0 FOG 10 10 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 50 0 0 10
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 50S. NORTHEAST
WINDS 10 TO 15 MPH.
WEDNESDAY THROUGH THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE
LOWER 50S. HIGHS IN THE LOWER 60S. NORTHEAST WINDS 15 TO 20 MPH.
FRIDAY THROUGH SUNDAY
BREEZY. MOSTLY CLOUDY WITH A CHANCE OF
SHOWERS. LOWS IN THE LOWER 50S. HIGHS IN THE MID 60S. NORTHEAST
WINDS 20 TO 25 MPH.
MAZ013-210800-
WESTERN NORFOLK MA-
INCLUDING THE CITIES OF FOXBOROUGH AND NORWOOD
407 PM EDT SUN SEP 20 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLDY MCLDY MCLDY MCLDY
PRECIP TYPE RAIN NONE NONE SHOWERS
CHANCE PRECIP (%) 100 20 20
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 54 (+8) 65 (+4) 49 62
RH % (24H TREND) 100 (0) 49 (0) 96 64
20FT WND AM(MPH) N 7 NE 7
20FT WND PM(MPH) LGT/VAR NE 7 LGT/VAR NE 9
PRECIP AMOUNT 0.21 0.00 0.00 0.02
PRECIP DURATION 8 1
PRECIP BEGIN 6 PM 11 AM
PRECIP END 6 AM 6 PM
MIXING HGT (FT-AGL) 430 3780 420 4250
TRANSPORT WND (KTS) SE 6 NE 14 NE 7 NE 16
VENT RATE (KT-FT) 2580 52920 2940 68000
MAX ADI EARLY 6 VERY POOR 43 GEN GOOD 18 GEN POOR 48 GEN GOOD
MAX ADI LATE 11 POOR 55 GEN GOOD 8 POOR 51 GEN GOOD
MAX LVORI EARLY 9 3 6 3
MAX LVORI LATE 9 3 6 3
MIN VSBY EARLY 0 FOG 3 FOG 10 9
MIN VSBY LATE 0 FOG 10 10 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 50 0 0 10
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. NORTHEAST
WINDS 10 TO 15 MPH.
WEDNESDAY THROUGH THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE
UPPER 40S. HIGHS IN THE LOWER 60S. NORTHEAST WINDS 10 TO 15 MPH.
FRIDAY THROUGH SUNDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS.
LOWS IN THE UPPER 40S. HIGHS IN THE MID 60S. NORTHEAST WINDS
10 TO 15 MPH.
MAZ014-210800-
SOUTHEAST MIDDLESEX MA-
INCLUDING THE CITY OF CAMBRIDGE
407 PM EDT SUN SEP 20 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER CLOUDY PCLDY MCLDY MCLDY
PRECIP TYPE RAIN NONE NONE NONE
CHANCE PRECIP (%) 100 10 10
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 54 (+6) 68 (+7) 52 62
RH % (24H TREND) 100 (+4) 47 (-1) 90 62
20FT WND AM(MPH) N 7 NE 8
20FT WND PM(MPH) LGT/VAR NE 6 LGT/VAR NE 9
PRECIP AMOUNT 0.25 0.00 0.00 0.00
PRECIP DURATION 8
PRECIP BEGIN 6 PM
PRECIP END 6 AM
MIXING HGT (FT-AGL) 440 3970 430 4130
TRANSPORT WND (KTS) SE 7 NE 11 NE 9 NE 15
VENT RATE (KT-FT) 3080 43670 3870 61950
MAX ADI EARLY 7 POOR 40 FAIR 15 GEN POOR 35 FAIR
MAX ADI LATE 11 POOR 47 GEN GOOD 11 POOR 44 GEN GOOD
MAX LVORI EARLY 9 3 5 4
MAX LVORI LATE 9 3 5 4
MIN VSBY EARLY 0 FOG 3 FOG 10 9
MIN VSBY LATE 0 FOG 10 10 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 70 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 50. NORTHEAST WINDS
10 TO 15 MPH.
WEDNESDAY
PARTLY SUNNY. HIGHS IN THE LOWER 60S. NORTHEAST
WINDS 10 TO 15 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 50. NORTHEAST WINDS
5 TO 10 MPH.
THURSDAY AND THURSDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 50.
HIGHS IN THE LOWER 60S. NORTH WINDS 10 TO 15 MPH.
FRIDAY THROUGH SUNDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS.
LOWS IN THE LOWER 50S. HIGHS IN THE MID 60S. NORTHEAST WINDS
10 TO 15 MPH.
MAZ007-210800-
EASTERN ESSEX MA-
INCLUDING THE CITY OF GLOUCESTER
407 PM EDT SUN SEP 20 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER CLOUDY PCLDY MCLDY PCLDY
PRECIP TYPE RAIN NONE NONE NONE
CHANCE PRECIP (%) 100 10 10
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 53 (+5) 67 (+6) 49 62
RH % (24H TREND) 100 (0) 48 (-1) 93 58
20FT WND AM(MPH) N 9 G19 NE 10 G18
20FT WND PM(MPH) LGT/VAR NE 7 G18 NE 5 NE 11 G18
PRECIP AMOUNT 0.32 0.00 0.00 0.00
PRECIP DURATION 8
PRECIP BEGIN 6 PM
PRECIP END 6 AM
MIXING HGT (FT-AGL) 430 3230 400 3690
TRANSPORT WND (KTS) SE 10 NE 13 NE 8 NE 14
VENT RATE (KT-FT) 4300 41990 3200 51660
MAX ADI EARLY 10 POOR 40 FAIR 10 POOR 35 FAIR
MAX ADI LATE 14 GEN POOR 40 FAIR 16 GEN POOR 4 VERY POOR
MAX LVORI EARLY 9 3 4 4
MAX LVORI LATE 9 3 4 4
MIN VSBY EARLY 1 FOG 4 FOG 10 9
MIN VSBY LATE 0 FOG 10 10 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 70 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 50S. NORTHEAST
WINDS 15 TO 20 MPH.
WEDNESDAY AND WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER
50S. HIGHS IN THE LOWER 60S. NORTHEAST WINDS 15 TO 20 MPH.
THURSDAY AND THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER
50S. HIGHS IN THE LOWER 60S. NORTHEAST WINDS 15 TO 20 MPH.
FRIDAY THROUGH SUNDAY
WINDY. MOSTLY CLOUDY WITH A CHANCE OF
SHOWERS. LOWS IN THE LOWER 50S. HIGHS IN THE MID 60S. NORTHEAST
WINDS 20 TO 30 MPH.
MAZ006-210800-
WESTERN ESSEX MA-
INCLUDING THE CITY OF LAWRENCE
407 PM EDT SUN SEP 20 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER CLOUDY PCLDY MCLDY PCLDY
PRECIP TYPE RAIN NONE NONE NONE
CHANCE PRECIP (%) 100 10 10
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 53 (+8) 67 (+8) 48 61
RH % (24H TREND) 100 (0) 47 (-2) 93 62
20FT WND AM(MPH) N 5 NE 7
20FT WND PM(MPH) LGT/VAR NE 5 LGT/VAR NE 8
PRECIP AMOUNT 0.31 0.00 0.00 0.00
PRECIP DURATION 7
PRECIP BEGIN 6 PM
PRECIP END 6 AM
MIXING HGT (FT-AGL) 430 4440 400 4300
TRANSPORT WND (KTS) E 7 NE 11 NE 10 NE 14
VENT RATE (KT-FT) 3010 48840 4000 60200
MAX ADI EARLY 4 VERY POOR 55 GEN GOOD 9 POOR 39 FAIR
MAX ADI LATE 8 POOR 62 GOOD 8 POOR 44 GEN GOOD
MAX LVORI EARLY 9 3 6 3
MAX LVORI LATE 9 3 6 3
MIN VSBY EARLY 0 FOG 2 FOG 10 9
MIN VSBY LATE 0 FOG 10 10 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 70 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. NORTHEAST
WINDS 15 TO 20 MPH.
WEDNESDAY AND WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER
40S. HIGHS IN THE LOWER 60S. NORTHEAST WINDS 10 TO 15 MPH.
THURSDAY AND THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER
40S. HIGHS IN THE LOWER 60S. NORTH WINDS 10 TO 15 MPH.
FRIDAY THROUGH SUNDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS.
LOWS IN THE UPPER 40S. HIGHS IN THE MID 60S. NORTHEAST WINDS
10 TO 15 MPH.
MAZ005-210800-
CENTRAL MIDDLESEX MA-
INCLUDING THE CITIES OF FRAMINGHAM AND LOWELL
407 PM EDT SUN SEP 20 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER CLOUDY PCLDY MCLDY MCLDY
PRECIP TYPE RAIN NONE NONE NONE
CHANCE PRECIP (%) 100 10 10
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 53 (+8) 67 (+8) 47 62
RH % (24H TREND) 100 (0) 47 (-2) 96 60
20FT WND AM(MPH) N 5 NE 6
20FT WND PM(MPH) LGT/VAR NE 5 LGT/VAR NE 8
PRECIP AMOUNT 0.26 0.00 0.00 0.00
PRECIP DURATION 7
PRECIP BEGIN 6 PM
PRECIP END 6 AM
MIXING HGT (FT-AGL) 430 4550 420 4670
TRANSPORT WND (KTS) N 10 N 10 N 7 NE 14
VENT RATE (KT-FT) 4300 45500 2940 65380
MAX ADI EARLY 10 POOR 56 GEN GOOD 15 GEN POOR 40 FAIR
MAX ADI LATE 9 POOR 65 GOOD 7 POOR 46 GEN GOOD
MAX LVORI EARLY 9 3 6 2
MAX LVORI LATE 9 3 6 2
MIN VSBY EARLY 0 FOG 3 FOG 10 9
MIN VSBY LATE 0 FOG 10 10 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 70 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. NORTHEAST
WINDS 15 TO 20 MPH.
WEDNESDAY
PARTLY SUNNY. HIGHS IN THE LOWER 60S. NORTHEAST
WINDS 10 TO 15 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 40S. NORTHEAST
WINDS 5 TO 10 MPH.
THURSDAY AND THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER
40S. HIGHS IN THE LOWER 60S. NORTH WINDS 5 TO 10 MPH.
FRIDAY THROUGH SUNDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS.
LOWS IN THE UPPER 40S. HIGHS IN THE MID 60S. NORTHEAST WINDS
10 TO 15 MPH.
MAZ012-210800-
SOUTHERN WORCESTER MA-
INCLUDING THE CITIES OF MILFORD AND WORCESTER
407 PM EDT SUN SEP 20 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLDY MCLDY MCLDY MCLDY
PRECIP TYPE RAIN NONE NONE SHOWERS
CHANCE PRECIP (%) 100 10 20
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 52 (+4) 65 (+6) 48 61
RH % (24H TREND) 100 (0) 50 (+3) 100 62
20FT WND AM(MPH) N 7 NE 7
20FT WND PM(MPH) LGT/VAR NE 6 LGT/VAR NE 8
PRECIP AMOUNT 0.23 0.00 0.00 0.01
PRECIP DURATION 6 0
PRECIP BEGIN 6 PM 10 AM
PRECIP END 6 AM 2 PM
MIXING HGT (FT-AGL) 420 4140 420 4460
TRANSPORT WND (KTS) N 9 NE 11 NE 10 NE 15
VENT RATE (KT-FT) 3780 45540 4200 66900
MAX ADI EARLY 4 VERY POOR 38 FAIR 16 GEN POOR 43 GEN GOOD
MAX ADI LATE 12 POOR 61 GOOD 9 POOR 49 GEN GOOD
MAX LVORI EARLY 9 3 7 3
MAX LVORI LATE 9 3 7 3
MIN VSBY EARLY 0 FOG 3 FOG 10 9
MIN VSBY LATE 1 FOG 10 10 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 60 0 0 10
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 40S. NORTHEAST
WINDS 5 TO 10 MPH.
WEDNESDAY THROUGH THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE
UPPER 40S. HIGHS IN THE LOWER 60S. NORTHEAST WINDS 10 TO 15 MPH.
FRIDAY THROUGH SUNDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS.
LOWS IN THE UPPER 40S. HIGHS IN THE MID 60S. NORTHEAST WINDS
10 TO 15 MPH.
MAZ004-210800-
NORTHERN WORCESTER MA-
INCLUDING THE CITIES OF BARRE AND FITCHBURG
407 PM EDT SUN SEP 20 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLDY PCLDY MCLDY MCLDY
PRECIP TYPE RAIN NONE NONE NONE
CHANCE PRECIP (%) 100 10
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 48 (+1) 65 (+9) 44 61
RH % (24H TREND) 100 (0) 52 (+4) 100 56
20FT WND AM(MPH) N 6 NE 6
20FT WND PM(MPH) LGT/VAR NE 5 LGT/VAR NE 7
PRECIP AMOUNT 0.22 0.00 0.00 0.00
PRECIP DURATION 5
PRECIP BEGIN 6 PM
PRECIP END 4 AM
MIXING HGT (FT-AGL) 420 4490 420 4750
TRANSPORT WND (KTS) N 8 N 10 NE 8 NE 13
VENT RATE (KT-FT) 3360 44900 3360 61750
MAX ADI EARLY 4 VERY POOR 45 GEN GOOD 15 GEN POOR 37 FAIR
MAX ADI LATE 9 POOR 62 GOOD 9 POOR 44 GEN GOOD
MAX LVORI EARLY 9 3 6 3
MAX LVORI LATE 9 3 6 3
MIN VSBY EARLY 0 FOG 1 FOG 10 9
MIN VSBY LATE 1 FOG 10 10 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 60 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 40S. NORTHEAST
WINDS 5 TO 10 MPH.
WEDNESDAY
PARTLY SUNNY. HIGHS AROUND 60. NORTHEAST WINDS 10 TO
15 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 40S.
NORTHEAST WINDS 10 TO 15 MPH.
THURSDAY AND THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID
40S. HIGHS IN THE LOWER 60S. NORTHEAST WINDS 10 TO 15 MPH.
FRIDAY THROUGH SUNDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS.
LOWS IN THE UPPER 40S. HIGHS IN THE MID 60S. NORTHEAST WINDS
15 TO 20 MPH.
MAZ026-210800-
NORTHERN MIDDLESEX MA-
INCLUDING THE CITY OF AYER
407 PM EDT SUN SEP 20 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER CLOUDY PCLDY MCLDY MCLDY
PRECIP TYPE RAIN NONE NONE NONE
CHANCE PRECIP (%) 100 10
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 50 (+5) 66 (+11) 45 62
RH % (24H TREND) 100 (0) 54 (+4) 93 64
20FT WND AM(MPH) LGT/VAR NE 5
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR NE 6
PRECIP AMOUNT 0.27 0.00 0.00 0.00
PRECIP DURATION 5
PRECIP BEGIN 6 PM
PRECIP END 4 AM
MIXING HGT (FT-AGL) 420 4750 410 4820
TRANSPORT WND (KTS) NE 6 N 9 N 8 NE 12
VENT RATE (KT-FT) 2520 42750 3280 57840
MAX ADI EARLY 8 POOR 52 GEN GOOD 17 GEN POOR 36 FAIR
MAX ADI LATE 8 POOR 62 GOOD 6 VERY POOR 41 GEN GOOD
MAX LVORI EARLY 9 3 6 3
MAX LVORI LATE 9 3 6 3
MIN VSBY EARLY 0 FOG 2 FOG 10 9
MIN VSBY LATE 2 FOG 10 10 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 70 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 40S. NORTHEAST
WINDS 5 TO 10 MPH.
WEDNESDAY
PARTLY SUNNY. HIGHS IN THE LOWER 60S. NORTHEAST
WINDS 5 TO 10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 40S.
NORTHEAST WINDS 5 TO 10 MPH.
THURSDAY
PARTLY SUNNY. HIGHS IN THE LOWER 60S. NORTHEAST WINDS
5 TO 10 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 40S. NORTHEAST
WINDS 5 TO 10 MPH.
FRIDAY THROUGH SUNDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS.
LOWS IN THE UPPER 40S. HIGHS IN THE MID 60S. NORTHEAST WINDS
10 TO 15 MPH.
MAZ002-210800-
WESTERN FRANKLIN MA-
INCLUDING THE CITY OF CHARLEMONT
407 PM EDT SUN SEP 20 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLDY PCLDY MCLDY MCLDY
PRECIP TYPE RAIN NONE NONE NONE
CHANCE PRECIP (%) 100 10
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 46 (0) 62 (+8) 43 61
RH % (24H TREND) 100 (0) 51 (+5) 86 58
20FT WND AM(MPH) N 5 NE 5
20FT WND PM(MPH) LGT/VAR NE 5 NE 5 NE 5
PRECIP AMOUNT 0.12 0.00 0.00 0.00
PRECIP DURATION 2
PRECIP BEGIN 6 PM
PRECIP END 12 AM
MIXING HGT (FT-AGL) 420 3820 420 5120
TRANSPORT WND (KTS) N 9 N 10 NE 8 NE 11
VENT RATE (KT-FT) 3780 38200 3360 56320
MAX ADI EARLY 6 VERY POOR 51 GEN GOOD 18 GEN POOR 29 FAIR
MAX ADI LATE 7 POOR 57 GEN GOOD 6 VERY POOR 60 GEN GOOD
MAX LVORI EARLY 9 3 5 3
MAX LVORI LATE 9 3 5 3
MIN VSBY EARLY 0 FOG 1 FOG 10 9
MIN VSBY LATE 2 FOG 10 10 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 70 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 40S. NORTHEAST
WINDS 5 TO 10 MPH.
WEDNESDAY AND WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER
40S. HIGHS IN THE UPPER 50S. NORTHEAST WINDS 5 TO 10 MPH.
THURSDAY THROUGH FRIDAY
MOSTLY CLOUDY. LOWS IN THE LOWER 40S.
HIGHS IN THE LOWER 60S. NORTHEAST WINDS 5 TO 10 MPH.
FRIDAY NIGHT THROUGH SATURDAY NIGHT
MOSTLY CLOUDY WITH A
CHANCE OF SHOWERS. LOWS IN THE UPPER 40S. HIGHS IN THE LOWER 60S.
NORTH WINDS 10 TO 15 MPH.
SUNDAY
MOSTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE MID
60S. NORTH WINDS 5 TO 10 MPH.
MAZ003-210800-
EASTERN FRANKLIN MA-
INCLUDING THE CITIES OF GREENFIELD AND ORANGE
407 PM EDT SUN SEP 20 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLDY PCLDY MCLDY MCLDY
PRECIP TYPE RAIN NONE NONE NONE
CHANCE PRECIP (%) 100 10
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 47 (+1) 63 (+6) 45 63
RH % (24H TREND) 100 (0) 51 (+6) 93 54
20FT WND AM(MPH) N 6 NE 5
20FT WND PM(MPH) LGT/VAR N 6 N 5 NE 6
PRECIP AMOUNT 0.16 0.00 0.00 0.00
PRECIP DURATION 3
PRECIP BEGIN 6 PM
PRECIP END 2 AM
MIXING HGT (FT-AGL) 420 4360 410 5430
TRANSPORT WND (KTS) N 10 N 11 N 8 NE 11
VENT RATE (KT-FT) 4200 47960 3280 59730
MAX ADI EARLY 6 VERY POOR 52 GEN GOOD 16 GEN POOR 32 FAIR
MAX ADI LATE 9 POOR 63 GOOD 6 VERY POOR 70 GOOD
MAX LVORI EARLY 9 3 5 2
MAX LVORI LATE 9 3 5 2
MIN VSBY EARLY 2 FOG 1 FOG 10 9
MIN VSBY LATE 1 FOG 10 10 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 70 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 40S. NORTHEAST
WINDS 5 TO 10 MPH.
WEDNESDAY
PARTLY SUNNY. HIGHS IN THE LOWER 60S. NORTHEAST
WINDS 5 TO 10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 40S.
NORTHEAST WINDS 10 TO 15 MPH.
THURSDAY AND THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID
40S. HIGHS IN THE LOWER 60S. NORTH WINDS 10 TO 15 MPH.
FRIDAY THROUGH SUNDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS.
LOWS IN THE UPPER 40S. HIGHS IN THE MID 60S. NORTHEAST WINDS
15 TO 20 MPH.
MAZ008-210800-
WESTERN HAMPSHIRE MA-
INCLUDING THE CITY OF CHESTERFIELD
407 PM EDT SUN SEP 20 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLDY PCLDY MCLDY MCLDY
PRECIP TYPE RAIN NONE NONE NONE
CHANCE PRECIP (%) 90 10
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 48 (+1) 63 (+7) 43 60
RH % (24H TREND) 100 (0) 50 (+2) 89 60
20FT WND AM(MPH) N 6 NE 6
20FT WND PM(MPH) LGT/VAR NE 5 NE 5 NE 6
PRECIP AMOUNT 0.15 0.00 0.00 0.00
PRECIP DURATION 3
PRECIP BEGIN 6 PM
PRECIP END 1 AM
MIXING HGT (FT-AGL) 430 3860 420 5040
TRANSPORT WND (KTS) N 6 N 10 NE 9 NE 12
VENT RATE (KT-FT) 2580 38600 3780 60480
MAX ADI EARLY 7 POOR 40 FAIR 18 GEN POOR 33 FAIR
MAX ADI LATE 8 POOR 59 GEN GOOD 7 POOR 41 GEN GOOD
MAX LVORI EARLY 9 3 5 3
MAX LVORI LATE 9 3 5 3
MIN VSBY EARLY 0 FOG 1 FOG 10 9
MIN VSBY LATE 2 FOG 10 10 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 70 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 40S. NORTHEAST
WINDS 5 TO 10 MPH.
WEDNESDAY
PARTLY SUNNY. HIGHS IN THE UPPER 50S. NORTHEAST
WINDS 5 TO 10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 40S.
NORTHEAST WINDS 5 TO 10 MPH.
THURSDAY AND THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID
40S. HIGHS AROUND 60. NORTH WINDS 5 TO 10 MPH.
FRIDAY THROUGH SUNDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS.
LOWS IN THE UPPER 40S. HIGHS 61 TO 66. NORTHEAST WINDS 10 TO
15 MPH.
MAZ010-210800-
EASTERN HAMPSHIRE MA-
INCLUDING THE CITIES OF AMHERST AND NORTHAMPTON
407 PM EDT SUN SEP 20 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLDY PCLDY MCLDY MCLDY
PRECIP TYPE RAIN NONE NONE NONE
CHANCE PRECIP (%) 80 10
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 48 (0) 64 (+5) 47 64
RH % (24H TREND) 100 (0) 50 (+5) 93 54
20FT WND AM(MPH) N 7 NE 6
20FT WND PM(MPH) LGT/VAR N 6 N 5 NE 7
PRECIP AMOUNT 0.19 0.00 0.00 0.00
PRECIP DURATION 3
PRECIP BEGIN 6 PM
PRECIP END 2 AM
MIXING HGT (FT-AGL) 410 4350 410 5290
TRANSPORT WND (KTS) N 7 N 10 NE 7 NE 12
VENT RATE (KT-FT) 2870 43500 2870 63480
MAX ADI EARLY 4 VERY POOR 37 FAIR 13 GEN POOR 35 FAIR
MAX ADI LATE 11 POOR 62 GOOD 7 POOR 43 GEN GOOD
MAX LVORI EARLY 9 3 5 3
MAX LVORI LATE 9 3 5 3
MIN VSBY EARLY 2 FOG 1 FOG 10 9
MIN VSBY LATE 2 FOG 10 10 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 70 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 40S. NORTHEAST
WINDS 5 TO 10 MPH.
WEDNESDAY
PARTLY SUNNY. HIGHS IN THE LOWER 60S. NORTHEAST
WINDS 5 TO 10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 40S. NORTHEAST
WINDS 10 TO 15 MPH.
THURSDAY AND THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID
40S. HIGHS IN THE MID 60S. NORTH WINDS 10 TO 15 MPH.
FRIDAY THROUGH SUNDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS.
LOWS IN THE UPPER 40S. HIGHS IN THE UPPER 60S. NORTH WINDS 15 TO
20 MPH.
MAZ009-210800-
WESTERN HAMPDEN MA-
INCLUDING THE CITY OF BLANDFORD
407 PM EDT SUN SEP 20 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLDY PCLDY MCLDY MCLDY
PRECIP TYPE RAIN NONE NONE NONE
CHANCE PRECIP (%) 70 10 20
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 50 (+1) 63 (+6) 45 60
RH % (24H TREND) 100 (0) 50 (0) 89 64
20FT WND AM(MPH) N 7 NE 6
20FT WND PM(MPH) LGT/VAR NE 6 NE 5 NE 7
PRECIP AMOUNT 0.14 0.00 0.00 0.00
PRECIP DURATION 3
PRECIP BEGIN 6 PM
PRECIP END 2 AM
MIXING HGT (FT-AGL) 430 3890 420 4820
TRANSPORT WND (KTS) NE 4 N 10 NE 9 NE 13
VENT RATE (KT-FT) 1720 38900 3780 62660
MAX ADI EARLY 6 VERY POOR 37 FAIR 18 GEN POOR 34 FAIR
MAX ADI LATE 8 POOR 58 GEN GOOD 7 POOR 44 GEN GOOD
MAX LVORI EARLY 9 3 5 3
MAX LVORI LATE 9 3 5 3
MIN VSBY EARLY 0 FOG 1 FOG 10 9
MIN VSBY LATE 3 FOG 10 10 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 60 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 40S. NORTHEAST
WINDS 5 TO 10 MPH.
WEDNESDAY
PARTLY SUNNY. HIGHS AROUND 60. NORTHEAST WINDS 5 TO
10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 40S. NORTHEAST
WINDS 10 TO 15 MPH.
THURSDAY AND THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID
40S. HIGHS IN THE LOWER 60S. NORTHEAST WINDS 10 TO 15 MPH.
FRIDAY THROUGH SUNDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS.
LOWS IN THE UPPER 40S. HIGHS IN THE MID 60S. NORTH WINDS 10 TO
15 MPH.
MAZ011-210800-
EASTERN HAMPDEN MA-
INCLUDING THE CITY OF SPRINGFIELD
407 PM EDT SUN SEP 20 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLDY MCLDY MCLDY MCLDY
PRECIP TYPE RAIN NONE NONE SHOWERS
CHANCE PRECIP (%) 70 10 20
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 50 (0) 65 (+4) 48 64
RH % (24H TREND) 100 (0) 47 (+4) 96 52
20FT WND AM(MPH) N 7 NE 6
20FT WND PM(MPH) LGT/VAR N 6 NE 5 NE 7
PRECIP AMOUNT 0.17 0.00 0.00 0.00
PRECIP DURATION 3
PRECIP BEGIN 6 PM
PRECIP END 3 AM
MIXING HGT (FT-AGL) 410 4370 410 5170
TRANSPORT WND (KTS) N 6 N 10 NE 7 NE 13
VENT RATE (KT-FT) 2460 43700 2870 67210
MAX ADI EARLY 4 VERY POOR 37 FAIR 15 GEN POOR 36 FAIR
MAX ADI LATE 11 POOR 60 GEN GOOD 8 POOR 45 GEN GOOD
MAX LVORI EARLY 9 3 5 3
MAX LVORI LATE 9 3 5 3
MIN VSBY EARLY 1 FOG 2 FOG 10 9
MIN VSBY LATE 2 FOG 10 10 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 60 0 0 10
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 40S. NORTHEAST
WINDS 5 TO 10 MPH.
WEDNESDAY
PARTLY SUNNY. HIGHS IN THE LOWER 60S. NORTHEAST
WINDS 10 TO 15 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 40S. NORTHEAST
WINDS 5 TO 10 MPH.
THURSDAY AND THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID
40S. HIGHS IN THE MID 60S. NORTH WINDS 10 TO 15 MPH.
FRIDAY THROUGH SUNDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS.
LOWS IN THE UPPER 40S. HIGHS IN THE UPPER 60S. NORTH WINDS 10 TO
15 MPH.
CTZ002-210800-
HARTFORD CT-
INCLUDING THE CITIES OF HARTFORD AND WINDSOR LOCKS
407 PM EDT SUN SEP 20 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLDY MCLDY MCLDY MCLDY
PRECIP TYPE RAIN NONE NONE SHOWERS
CHANCE PRECIP (%) 60 10 20
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 52 (0) 67 (+3) 49 64
RH % (24H TREND) 100 (0) 50 (+4) 96 60
20FT WND AM(MPH) N 8 G18 NE 7
20FT WND PM(MPH) LGT/VAR NE 6 NE 5 NE 8
PRECIP AMOUNT 0.18 0.00 0.00 0.03
PRECIP DURATION 3 1
PRECIP BEGIN 6 PM 6 AM
PRECIP END 3 AM 6 PM
MIXING HGT (FT-AGL) 440 4280 430 5050
TRANSPORT WND (KTS) NE 5 N 11 NE 9 NE 14
VENT RATE (KT-FT) 2200 47080 3870 70700
MAX ADI EARLY 4 VERY POOR 39 FAIR 17 GEN POOR 37 FAIR
MAX ADI LATE 12 POOR 63 GOOD 9 POOR 47 GEN GOOD
MAX LVORI EARLY 9 3 5 3
MAX LVORI LATE 9 3 5 3
MIN VSBY EARLY 1 FOG 10 10 9
MIN VSBY LATE 3 FOG 10 10 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 60 0 0 10
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. NORTHEAST
WINDS 5 TO 10 MPH.
WEDNESDAY THROUGH THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE
UPPER 40S. HIGHS IN THE MID 60S. NORTH WINDS 10 TO 15 MPH.
FRIDAY THROUGH SUNDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS.
LOWS IN THE UPPER 40S. HIGHS 64 TO 69. NORTH WINDS 10 TO 15 MPH.
CTZ003-210800-
TOLLAND CT-
INCLUDING THE CITIES OF UNION AND VERNON
407 PM EDT SUN SEP 20 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLDY MCLDY MCLDY MCLDY
PRECIP TYPE RAIN NONE NONE SHOWERS
CHANCE PRECIP (%) 70 10 30
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 50 (-1) 66 (+4) 48 62
RH % (24H TREND) 100 (0) 52 (+3) 100 60
20FT WND AM(MPH) N 7 NE 7
20FT WND PM(MPH) LGT/VAR NE 6 NE 5 NE 8
PRECIP AMOUNT 0.17 0.00 0.00 0.02
PRECIP DURATION 4 1
PRECIP BEGIN 6 PM 6 AM
PRECIP END 4 AM 6 PM
MIXING HGT (FT-AGL) 420 4120 440 4580
TRANSPORT WND (KTS) N 8 NE 11 NE 9 NE 14
VENT RATE (KT-FT) 3360 45320 3960 64120
MAX ADI EARLY 6 VERY POOR 37 FAIR 15 GEN POOR 39 FAIR
MAX ADI LATE 11 POOR 40 FAIR 9 POOR 48 GEN GOOD
MAX LVORI EARLY 9 3 6 3
MAX LVORI LATE 9 3 6 3
MIN VSBY EARLY 1 FOG 2 FOG 10 9
MIN VSBY LATE 1 FOG 10 10 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 50 0 0 10
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. NORTHEAST
WINDS 5 TO 10 MPH.
WEDNESDAY THROUGH THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE
UPPER 40S. HIGHS IN THE LOWER 60S. NORTHEAST WINDS 10 TO 15 MPH.
FRIDAY THROUGH SUNDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS.
LOWS IN THE UPPER 40S. HIGHS IN THE MID 60S. NORTH WINDS 10 TO
15 MPH.
CTZ004-210800-
WINDHAM CT-
INCLUDING THE CITIES OF PUTNAM AND WILLIMANTIC
407 PM EDT SUN SEP 20 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLDY MCLDY MCLDY MCLDY
PRECIP TYPE RAIN NONE NONE SHOWERS
CHANCE PRECIP (%) 70 10 10 20
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 53 (+4) 66 (+4) 48 62
RH % (24H TREND) 100 (0) 52 (+3) 100 65
20FT WND AM(MPH) N 8 NE 7
20FT WND PM(MPH) LGT/VAR NE 7 LGT/VAR NE 9
PRECIP AMOUNT 0.21 0.00 0.00 0.03
PRECIP DURATION 5 1
PRECIP BEGIN 6 PM 6 AM
PRECIP END 6 AM 6 PM
MIXING HGT (FT-AGL) 450 3960 450 4330
TRANSPORT WND (KTS) SE 6 NE 12 NE 8 NE 16
VENT RATE (KT-FT) 2700 47520 3600 69280
MAX ADI EARLY 5 VERY POOR 13 GEN POOR 17 GEN POOR 34 FAIR
MAX ADI LATE 12 POOR 62 GOOD 11 POOR 52 GEN GOOD
MAX LVORI EARLY 9 3 7 4
MAX LVORI LATE 9 3 7 4
MIN VSBY EARLY 1 FOG 2 FOG 10 9
MIN VSBY LATE 1 FOG 10 10 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 50 0 0 10
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. NORTHEAST
WINDS 5 TO 10 MPH.
WEDNESDAY THROUGH THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE
UPPER 40S. HIGHS IN THE LOWER 60S. NORTHEAST WINDS 10 TO 15 MPH.
FRIDAY THROUGH SUNDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS.
LOWS IN THE UPPER 40S. HIGHS 63 TO 68. NORTHEAST WINDS 10 TO
15 MPH.
RIZ001-210800-
NORTHWEST PROVIDENCE RI-
INCLUDING THE CITIES OF FOSTER AND SMITHFIELD
407 PM EDT SUN SEP 20 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLDY MCLDY MCLDY MCLDY
PRECIP TYPE RAIN NONE NONE SHOWERS
CHANCE PRECIP (%) 100 10 10 20
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 53 (+5) 66 (+3) 49 61
RH % (24H TREND) 100 (0) 52 (+3) 96 64
20FT WND AM(MPH) N 8 NE 7
20FT WND PM(MPH) LGT/VAR NE 7 LGT/VAR NE 9
PRECIP AMOUNT 0.21 0.00 0.00 0.03
PRECIP DURATION 6 1
PRECIP BEGIN 6 PM 10 AM
PRECIP END 6 AM 6 PM
MIXING HGT (FT-AGL) 460 3690 430 4310
TRANSPORT WND (KTS) SE 7 NE 13 NE 9 NE 16
VENT RATE (KT-FT) 3220 47970 3870 68960
MAX ADI EARLY 6 VERY POOR 38 FAIR 19 GEN POOR 44 GEN GOOD
MAX ADI LATE 13 GEN POOR 42 GEN GOOD 11 POOR 49 GEN GOOD
MAX LVORI EARLY 9 3 6 4
MAX LVORI LATE 9 3 6 4
MIN VSBY EARLY 0 FOG 3 FOG 10 9
MIN VSBY LATE 0 FOG 10 10 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 50 0 0 10
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. NORTHEAST
WINDS 5 TO 10 MPH.
WEDNESDAY THROUGH THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE
UPPER 40S. HIGHS IN THE LOWER 60S. NORTHEAST WINDS 10 TO 15 MPH.
FRIDAY THROUGH SUNDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS.
LOWS IN THE UPPER 40S. HIGHS 62 TO 67. NORTHEAST WINDS 10 TO
15 MPH.
RIZ002-210800-
SOUTHEAST PROVIDENCE RI-
INCLUDING THE CITY OF PROVIDENCE
407 PM EDT SUN SEP 20 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLDY MCLDY MCLDY MCLDY
PRECIP TYPE RAIN NONE NONE SHOWERS
CHANCE PRECIP (%) 90 20 10 20
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 55 (+4) 67 (+3) 51 62
RH % (24H TREND) 100 (0) 50 (-3) 100 64
20FT WND AM(MPH) N 9 NE 8
20FT WND PM(MPH) LGT/VAR NE 8 NE 5 NE 9
PRECIP AMOUNT 0.20 0.00 0.00 0.03
PRECIP DURATION 6 1
PRECIP BEGIN 6 PM 11 AM
PRECIP END 6 AM 6 PM
MIXING HGT (FT-AGL) 430 3420 430 4530
TRANSPORT WND (KTS) SE 7 NE 14 NE 9 NE 16
VENT RATE (KT-FT) 3010 47880 3870 72480
MAX ADI EARLY 7 POOR 14 GEN POOR 24 FAIR 39 FAIR
MAX ADI LATE 13 GEN POOR 43 GEN GOOD 10 POOR 1 VERY POOR
MAX LVORI EARLY 9 6 6 4
MAX LVORI LATE 9 6 6 4
MIN VSBY EARLY 2 FOG 6 FOG 10 9
MIN VSBY LATE 1 FOG 10 10 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 50 0 0 10
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. NORTHEAST
WINDS 5 TO 10 MPH.
WEDNESDAY THROUGH THURSDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND
50. HIGHS IN THE LOWER 60S. NORTHEAST WINDS 10 TO 15 MPH.
FRIDAY THROUGH SUNDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS.
LOWS IN THE LOWER 50S. HIGHS 63 TO 68. NORTH WINDS 15 TO 20 MPH.
RIZ003-210800-
WESTERN KENT RI-
INCLUDING THE CITIES OF COVENTRY AND WEST GREENWICH
407 PM EDT SUN SEP 20 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLDY MCLDY MCLDY MCLDY
PRECIP TYPE RAIN NONE NONE SHOWERS
CHANCE PRECIP (%) 70 20 10 20
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 53 (+3) 66 (+3) 50 61
RH % (24H TREND) 100 (0) 52 (-1) 96 67
20FT WND AM(MPH) N 9 NE 9
20FT WND PM(MPH) LGT/VAR NE 8 NE 6 NE 10
PRECIP AMOUNT 0.19 0.00 0.00 0.05
PRECIP DURATION 6 1
PRECIP BEGIN 6 PM 6 AM
PRECIP END 6 AM 6 PM
MIXING HGT (FT-AGL) 450 3420 420 4270
TRANSPORT WND (KTS) N 8 NE 14 NE 10 NE 17
VENT RATE (KT-FT) 3600 47880 4200 72590
MAX ADI EARLY 7 POOR 14 GEN POOR 22 FAIR 27 FAIR
MAX ADI LATE 13 GEN POOR 42 GEN GOOD 11 POOR 1 VERY POOR
MAX LVORI EARLY 10 6 7 4
MAX LVORI LATE 10 6 7 4
MIN VSBY EARLY 2 FOG 4 FOG 10 9
MIN VSBY LATE 2 FOG 10 10 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 50 0 0 10
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. NORTHEAST
WINDS 5 TO 10 MPH.
WEDNESDAY THROUGH THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE
UPPER 40S. HIGHS IN THE LOWER 60S. NORTHEAST WINDS 10 TO 15 MPH.
FRIDAY THROUGH SUNDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS.
LOWS IN THE UPPER 40S. HIGHS 62 TO 67. NORTH WINDS 10 TO 15 MPH.
RIZ004-210800-
EASTERN KENT RI-
INCLUDING THE CITIES OF EAST GREENWICH, WARWICK, AND WEST WARWICK
407 PM EDT SUN SEP 20 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLDY MCLDY MCLDY MCLDY
PRECIP TYPE RAIN RAIN NONE SHOWERS
CHANCE PRECIP (%) 70 30 10 20
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 55 (+3) 67 (+2) 51 63
RH % (24H TREND) 100 (0) 52 (+1) 96 62
20FT WND AM(MPH) N 10 G18 NE 9
20FT WND PM(MPH) LGT/VAR NE 9 G17 NE 6 NE 11
PRECIP AMOUNT 0.22 0.03 0.00 0.02
PRECIP DURATION 6 0 1
PRECIP BEGIN 6 PM CONTINUING 6 AM
PRECIP END CONTINUING 8 AM 6 PM
MIXING HGT (FT-AGL) 440 3310 430 4540
TRANSPORT WND (KTS) S 8 NE 15 NE 9 NE 17
VENT RATE (KT-FT) 3520 49650 3870 77180
MAX ADI EARLY 8 POOR 15 GEN POOR 23 FAIR 13 GEN POOR
MAX ADI LATE 14 GEN POOR 46 GEN GOOD 11 POOR 1 VERY POOR
MAX LVORI EARLY 9 6 6 4
MAX LVORI LATE 9 6 6 4
MIN VSBY EARLY 3 FOG 8 10 9
MIN VSBY LATE 2 FOG 10 10 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 50 20 0 10
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 50. NORTHEAST WINDS
5 TO 10 MPH.
WEDNESDAY THROUGH THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE
LOWER 50S. HIGHS IN THE LOWER 60S. NORTHEAST WINDS 15 TO 20 MPH.
FRIDAY THROUGH SUNDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS.
LOWS IN THE LOWER 50S. HIGHS 63 TO 68. NORTH WINDS 15 TO 20 MPH.
RIZ005-210800-
BRISTOL RI-
INCLUDING THE CITY OF BRISTOL
407 PM EDT SUN SEP 20 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLDY MCLDY MCLDY MCLDY
PRECIP TYPE RAIN RAIN NONE SHOWERS
CHANCE PRECIP (%) 80 30 10 20
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 56 (+3) 66 (+1) 53 63
RH % (24H TREND) 100 (0) 56 (+5) 93 67
20FT WND AM(MPH) N 10 G19 NE 9
20FT WND PM(MPH) SE 5 NE 9 G19 NE 7 NE 11 G17
PRECIP AMOUNT 0.21 0.03 0.00 0.00
PRECIP DURATION 6 0
PRECIP BEGIN 6 PM CONTINUING
PRECIP END CONTINUING 8 AM
MIXING HGT (FT-AGL) 420 3310 420 4390
TRANSPORT WND (KTS) S 8 NE 15 NE 10 NE 17
VENT RATE (KT-FT) 3360 49650 4200 74630
MAX ADI EARLY 11 POOR 14 GEN POOR 23 FAIR 10 POOR
MAX ADI LATE 13 GEN POOR 47 GEN GOOD 10 POOR 1 VERY POOR
MAX LVORI EARLY 9 6 5 4
MAX LVORI LATE 9 6 5 4
MIN VSBY EARLY 3 FOG 5 FOG 10 9
MIN VSBY LATE 2 FOG 10 10 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 40 30 0 10
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 50S. NORTHEAST
WINDS 5 TO 10 MPH.
WEDNESDAY THROUGH THURSDAY
MOSTLY CLOUDY. LOWS IN THE LOWER
50S. HIGHS IN THE MID 60S. NORTHEAST WINDS 15 TO 20 MPH.
THURSDAY NIGHT THROUGH SUNDAY
MOSTLY CLOUDY WITH A CHANCE OF
SHOWERS. LOWS IN THE LOWER 50S. HIGHS IN THE MID 60S. NORTH WINDS
15 TO 20 MPH.
RIZ006-210800-
WASHINGTON RI-
INCLUDING THE CITIES OF NARRAGANSETT AND WESTERLY
407 PM EDT SUN SEP 20 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLDY MCLDY MCLDY MCLDY
PRECIP TYPE RAIN RAIN NONE SHOWERS
CHANCE PRECIP (%) 70 30 10 30
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 54 (+1) 66 (+1) 50 63
RH % (24H TREND) 100 (0) 52 (-1) 100 65
20FT WND AM(MPH) N 10 G22 NE 10 G21
20FT WND PM(MPH) LGT/VAR NE 10 G21 NE 7 G17 NE 12 G23
PRECIP AMOUNT 0.18 0.02 0.00 0.03
PRECIP DURATION 6 0 1
PRECIP BEGIN 6 PM CONTINUING 6 AM
PRECIP END CONTINUING 8 AM 6 PM
MIXING HGT (FT-AGL) 430 3250 420 4350
TRANSPORT WND (KTS) S 10 NE 14 NE 12 NE 17
VENT RATE (KT-FT) 4300 45500 5040 73950
MAX ADI EARLY 8 POOR 15 GEN POOR 22 FAIR 11 POOR
MAX ADI LATE 13 GEN POOR 44 GEN GOOD 12 POOR 1 VERY POOR
MAX LVORI EARLY 9 6 6 4
MAX LVORI LATE 9 6 6 4
MIN VSBY EARLY 3 FOG 5 FOG 10 9
MIN VSBY LATE 2 FOG 10 10 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 40 20 0 10
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 50. NORTHEAST WINDS
15 TO 20 MPH.
WEDNESDAY THROUGH THURSDAY NIGHT
BREEZY. MOSTLY CLOUDY. LOWS
AROUND 50. HIGHS IN THE MID 60S. NORTHEAST WINDS 15 TO 25 MPH.
FRIDAY THROUGH SUNDAY
BREEZY. MOSTLY CLOUDY WITH A CHANCE OF
SHOWERS. LOWS IN THE LOWER 50S. HIGHS IN THE MID 60S. NORTH WINDS
20 TO 25 MPH.
RIZ007-210800-
NEWPORT RI-
INCLUDING THE CITY OF NEWPORT
407 PM EDT SUN SEP 20 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLDY MCLDY MCLDY MCLDY
PRECIP TYPE RAIN RAIN NONE SHOWERS
CHANCE PRECIP (%) 90 40 10 30
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 56 (+2) 65 (0) 54 63
RH % (24H TREND) 100 (0) 58 (+5) 93 65
20FT WND AM(MPH) N 11 G22 NE 11 G21
20FT WND PM(MPH) SE 6 NE 11 G21 NE 8 G17 NE 13 G22
PRECIP AMOUNT 0.19 0.03 0.00 0.01
PRECIP DURATION 7 1 1
PRECIP BEGIN 6 PM CONTINUING 6 AM
PRECIP END CONTINUING 9 AM 6 PM
MIXING HGT (FT-AGL) 440 3040 430 4310
TRANSPORT WND (KTS) SE 12 NE 15 NE 10 NE 17
VENT RATE (KT-FT) 5280 45600 4300 73270
MAX ADI EARLY 12 POOR 15 GEN POOR 22 FAIR 11 POOR
MAX ADI LATE 12 POOR 40 FAIR 12 POOR 1 VERY POOR
MAX LVORI EARLY 9 6 5 4
MAX LVORI LATE 9 6 5 4
MIN VSBY EARLY 3 FOG 3 FOG 10 9
MIN VSBY LATE 2 FOG 10 10 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 40 30 0 10
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 50S. NORTHEAST
WINDS 15 TO 20 MPH.
WEDNESDAY THROUGH THURSDAY
BREEZY. MOSTLY CLOUDY. LOWS IN THE
MID 50S. HIGHS IN THE MID 60S. NORTHEAST WINDS 15 TO 25 MPH.
THURSDAY NIGHT THROUGH SUNDAY
BREEZY. MOSTLY CLOUDY WITH A
CHANCE OF SHOWERS. LOWS IN THE MID 50S. HIGHS IN THE MID 60S.
NORTH WINDS 20 TO 25 MPH.
RIZ008-210800-
BLOCK ISLAND RI-
INCLUDING THE CITY OF NEW SHOREHAM
407 PM EDT SUN SEP 20 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLDY MCLDY MCLDY MCLDY
PRECIP TYPE RAIN RAIN RAIN SHOWERS
CHANCE PRECIP (%) 70 40 20 40
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 58 (0) 65 (-1) 60 64
RH % (24H TREND) 100 (0) 58 (+2) 84 73
20FT WND AM(MPH) N 15 G23 NE 16 G24
20FT WND PM(MPH) SE 8 NE 15 G23 NE 13 G20 NE 18 G25
PRECIP AMOUNT 0.20 0.03 0.02 0.01
PRECIP DURATION 7 1 0 2
PRECIP BEGIN 6 PM CONTINUING 4 AM CONTINUING
PRECIP END CONTINUING 9 AM CONTINUING 6 PM
MIXING HGT (FT-AGL) 750 3000 1680 4300
TRANSPORT WND (KTS) W 9 NE 17 NE 18 NE 22
VENT RATE (KT-FT) 6750 51000 30240 94600
MAX ADI EARLY 15 GEN POOR 17 GEN POOR 28 FAIR 27 FAIR
MAX ADI LATE 13 GEN POOR 1 VERY POOR 28 FAIR 1 VERY POOR
MAX LVORI EARLY 9 6 3 4
MAX LVORI LATE 9 6 3 4
MIN VSBY EARLY 5 FOG 10 10 9
MIN VSBY LATE 3 FOG 10 10 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 50 30 10 10
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
TUESDAY NIGHT
BREEZY. MOSTLY CLOUDY WITH A CHANCE OF SHOWERS.
LOWS IN THE UPPER 50S. NORTHEAST WINDS 20 TO 25 MPH.
WEDNESDAY THROUGH THURSDAY
BREEZY. MOSTLY CLOUDY. LOWS IN THE
UPPER 50S. HIGHS IN THE MID 60S. NORTHEAST WINDS 20 TO 25 MPH.
THURSDAY NIGHT THROUGH SUNDAY
WINDY. MOSTLY CLOUDY WITH A
CHANCE OF SHOWERS. LOWS IN THE UPPER 50S. HIGHS IN THE MID 60S.
NORTH WINDS 20 TO 30 MPH.
MAZ017-210800-
NORTHERN BRISTOL MA-
INCLUDING THE CITY OF TAUNTON
407 PM EDT SUN SEP 20 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLDY MCLDY MCLDY MCLDY
PRECIP TYPE RAIN RAIN NONE SHOWERS
CHANCE PRECIP (%) 90 30 20
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 55 (+9) 65 (+2) 49 62
RH % (24H TREND) 100 (0) 50 (+1) 96 67
20FT WND AM(MPH) N 8 NE 7
20FT WND PM(MPH) LGT/VAR NE 7 LGT/VAR NE 9
PRECIP AMOUNT 0.18 0.02 0.00 0.01
PRECIP DURATION 7 0 1
PRECIP BEGIN 6 PM CONTINUING 11 AM
PRECIP END CONTINUING 8 AM 6 PM
MIXING HGT (FT-AGL) 430 3300 420 4340
TRANSPORT WND (KTS) S 7 NE 15 NE 9 NE 16
VENT RATE (KT-FT) 3010 49500 3780 69440
MAX ADI EARLY 8 POOR 13 GEN POOR 25 FAIR 41 GEN GOOD
MAX ADI LATE 12 POOR 49 GEN GOOD 8 POOR 49 GEN GOOD
MAX LVORI EARLY 9 5 7 4
MAX LVORI LATE 9 5 7 4
MIN VSBY EARLY 2 FOG 4 FOG 10 9
MIN VSBY LATE 1 FOG 10 10 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 50 20 0 10
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. NORTHEAST
WINDS 20 TO 25 MPH.
WEDNESDAY THROUGH THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE
UPPER 40S. HIGHS IN THE LOWER 60S. NORTHEAST WINDS 10 TO 15 MPH.
FRIDAY THROUGH SUNDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS.
LOWS IN THE UPPER 40S. HIGHS IN THE MID 60S. NORTHEAST WINDS
10 TO 15 MPH.
MAZ018-210800-
WESTERN PLYMOUTH MA-
INCLUDING THE CITY OF BROCKTON
407 PM EDT SUN SEP 20 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLDY MCLDY MCLDY MCLDY
PRECIP TYPE RAIN RAIN NONE SHOWERS
CHANCE PRECIP (%) 100 40 20
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 55 (+9) 63 (0) 49 63
RH % (24H TREND) 100 (0) 52 (-1) 96 65
20FT WND AM(MPH) N 9 G19 NE 9 G19
20FT WND PM(MPH) LGT/VAR NE 8 G19 NE 5 NE 10 G19
PRECIP AMOUNT 0.17 0.02 0.00 0.00
PRECIP DURATION 8 0
PRECIP BEGIN 6 PM CONTINUING
PRECIP END CONTINUING 8 AM
MIXING HGT (FT-AGL) 410 2840 420 4170
TRANSPORT WND (KTS) SE 7 NE 16 NE 9 NE 17
VENT RATE (KT-FT) 2870 45440 3780 70890
MAX ADI EARLY 8 POOR 13 GEN POOR 25 FAIR 13 GEN POOR
MAX ADI LATE 10 POOR 44 GEN GOOD 11 POOR 1 VERY POOR
MAX LVORI EARLY 9 6 6 4
MAX LVORI LATE 9 6 6 4
MIN VSBY EARLY 3 FOG 3 FOG 10 9
MIN VSBY LATE 1 FOG 10 10 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 40 30 0 10
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. NORTHEAST
WINDS 20 TO 25 MPH.
WEDNESDAY THROUGH THURSDAY
MOSTLY CLOUDY. LOWS IN THE UPPER
40S. HIGHS IN THE LOWER 60S. NORTHEAST WINDS 10 TO 15 MPH.
THURSDAY NIGHT THROUGH SUNDAY
MOSTLY CLOUDY WITH A CHANCE OF
SHOWERS. LOWS IN THE UPPER 40S. HIGHS IN THE MID 60S. NORTHEAST
WINDS 10 TO 15 MPH.
MAZ019-210800-
EASTERN PLYMOUTH MA-
INCLUDING THE CITY OF PLYMOUTH
407 PM EDT SUN SEP 20 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLDY MCLDY MCLDY MCLDY
PRECIP TYPE RAIN RAIN NONE SHOWERS
CHANCE PRECIP (%) 100 40 20
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 55 (+5) 62 (-2) 51 63
RH % (24H TREND) 100 (0) 60 (+7) 90 62
20FT WND AM(MPH) N 11 G23 NE 12 G21
20FT WND PM(MPH) LGT/VAR NE 11 G22 NE 7 G17 NE 13 G21
PRECIP AMOUNT 0.20 0.03 0.00 0.00
PRECIP DURATION 8 1
PRECIP BEGIN 6 PM CONTINUING
PRECIP END CONTINUING 9 AM
MIXING HGT (FT-AGL) 410 2750 510 3890
TRANSPORT WND (KTS) SE 10 NE 17 NE 12 NE 17
VENT RATE (KT-FT) 4100 46750 6120 66130
MAX ADI EARLY 10 POOR 1 VERY POOR 21 FAIR 20 GEN POOR
MAX ADI LATE 13 GEN POOR 43 GEN GOOD 21 FAIR 1 VERY POOR
MAX LVORI EARLY 9 6 4 4
MAX LVORI LATE 9 6 4 4
MIN VSBY EARLY 3 FOG 3 FOG 10 9
MIN VSBY LATE 1 FOG 10 10 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 40 30 0 10
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 50S. NORTHEAST
WINDS 20 TO 25 MPH.
WEDNESDAY THROUGH THURSDAY
BREEZY. MOSTLY CLOUDY. LOWS IN THE
LOWER 50S. HIGHS IN THE LOWER 60S. NORTHEAST WINDS 15 TO 25 MPH.
THURSDAY NIGHT THROUGH SUNDAY
WINDY. MOSTLY CLOUDY WITH A
CHANCE OF SHOWERS. LOWS IN THE LOWER 50S. HIGHS IN THE MID 60S.
NORTHEAST WINDS 20 TO 30 MPH.
MAZ020-210800-
SOUTHERN BRISTOL MA-
INCLUDING THE CITIES OF FALL RIVER AND NEW BEDFORD
407 PM EDT SUN SEP 20 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLDY MCLDY MCLDY MCLDY
PRECIP TYPE RAIN RAIN NONE SHOWERS
CHANCE PRECIP (%) 100 40 10 20
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 55 (+5) 64 (-1) 50 64
RH % (24H TREND) 100 (0) 54 (+1) 96 67
20FT WND AM(MPH) N 9 G23 NE 10 G22
20FT WND PM(MPH) SE 5 NE 10 G22 NE 7 G18 NE 11 G22
PRECIP AMOUNT 0.20 0.04 0.00 0.00
PRECIP DURATION 8 1
PRECIP BEGIN 6 PM CONTINUING
PRECIP END CONTINUING 9 AM
MIXING HGT (FT-AGL) 410 3100 410 4250
TRANSPORT WND (KTS) SE 9 NE 16 NE 10 NE 17
VENT RATE (KT-FT) 3690 49600 4100 72250
MAX ADI EARLY 9 POOR 13 GEN POOR 25 FAIR 10 POOR
MAX ADI LATE 10 POOR 46 GEN GOOD 10 POOR 1 VERY POOR
MAX LVORI EARLY 9 6 5 4
MAX LVORI LATE 9 6 5 4
MIN VSBY EARLY 3 FOG 3 FOG 10 9
MIN VSBY LATE 1 FOG 10 10 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 40 30 0 10
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 50. NORTHEAST WINDS
20 TO 25 MPH.
WEDNESDAY THROUGH THURSDAY
WINDY. MOSTLY CLOUDY. LOWS AROUND
50. HIGHS IN THE MID 60S. NORTHEAST WINDS 20 TO 30 MPH.
THURSDAY NIGHT THROUGH SUNDAY
WINDY. MOSTLY CLOUDY WITH A
CHANCE OF SHOWERS. LOWS IN THE LOWER 50S. HIGHS IN THE MID 60S.
NORTH WINDS 20 TO 30 MPH.
MAZ021-210800-
SOUTHERN PLYMOUTH MA-
INCLUDING THE CITY OF MATTAPOISETT
407 PM EDT SUN SEP 20 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLDY MCLDY MCLDY MCLDY
PRECIP TYPE RAIN RAIN NONE SHOWERS
CHANCE PRECIP (%) 100 50 10 20
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 55 (+7) 64 (-1) 50 64
RH % (24H TREND) 100 (0) 58 (+2) 93 68
20FT WND AM(MPH) N 10 G23 NE 10 G21
20FT WND PM(MPH) LGT/VAR NE 10 G22 NE 6 G18 NE 11 G21
PRECIP AMOUNT 0.20 0.06 0.00 0.00
PRECIP DURATION 9 1
PRECIP BEGIN 6 PM CONTINUING
PRECIP END CONTINUING 9 AM
MIXING HGT (FT-AGL) 410 2750 410 4270
TRANSPORT WND (KTS) SE 9 NE 17 NE 10 NE 17
VENT RATE (KT-FT) 3690 46750 4100 72590
MAX ADI EARLY 8 POOR 1 VERY POOR 26 FAIR 11 POOR
MAX ADI LATE 7 POOR 46 GEN GOOD 11 POOR 1 VERY POOR
MAX LVORI EARLY 9 6 5 4
MAX LVORI LATE 9 6 5 4
MIN VSBY EARLY 3 FOG 3 FOG 10 9
MIN VSBY LATE 1 FOG 10 10 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 50 40 0 10
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 50. NORTHEAST WINDS
20 TO 25 MPH.
WEDNESDAY THROUGH THURSDAY
BREEZY. MOSTLY CLOUDY. LOWS AROUND
50. HIGHS IN THE MID 60S. NORTHEAST WINDS 15 TO 25 MPH.
THURSDAY NIGHT THROUGH SUNDAY
BREEZY. MOSTLY CLOUDY WITH A
CHANCE OF SHOWERS. LOWS IN THE LOWER 50S. HIGHS IN THE MID 60S.
NORTHEAST WINDS 20 TO 25 MPH.
MAZ022-210800-
BARNSTABLE MA-
INCLUDING THE CITIES OF CHATHAM, FALMOUTH, AND PROVINCETOWN
407 PM EDT SUN SEP 20 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLDY MCLDY MCLDY MCLDY
PRECIP TYPE RAIN RAIN NONE SHOWERS
CHANCE PRECIP (%) 100 60 20
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 57 (+7) 61 (-4) 54 65
RH % (24H TREND) 100 (+4) 67 (+12) 90 63
20FT WND AM(MPH) NE 10 G22 NE 12 G22
20FT WND PM(MPH) SE 5 NE 12 G21 NE 9 G17 NE 13 G21
PRECIP AMOUNT 0.17 0.08 0.00 0.00
PRECIP DURATION 9 2
PRECIP BEGIN 6 PM CONTINUING
PRECIP END CONTINUING 11 AM
MIXING HGT (FT-AGL) 420 2470 740 4180
TRANSPORT WND (KTS) NW 7 NE 20 NE 14 NE 17
VENT RATE (KT-FT) 2940 49400 10360 71060
MAX ADI EARLY 12 POOR 1 VERY POOR 31 FAIR 1 VERY POOR
MAX ADI LATE 9 POOR 42 GEN GOOD 22 FAIR 1 VERY POOR
MAX LVORI EARLY 9 6 4 4
MAX LVORI LATE 9 6 4 4
MIN VSBY EARLY 4 FOG 2 FOG 10 9
MIN VSBY LATE 2 FOG 10 10 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 50 40 0 10
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 50S. NORTHEAST
WINDS 20 TO 25 MPH.
WEDNESDAY THROUGH THURSDAY
MOSTLY CLOUDY. LOWS IN THE MID 50S.
HIGHS IN THE MID 60S. NORTHEAST WINDS 15 TO 20 MPH.
THURSDAY NIGHT THROUGH SUNDAY
BREEZY. MOSTLY CLOUDY WITH A
CHANCE OF SHOWERS. LOWS IN THE MID 50S. HIGHS IN THE MID 60S.
NORTHEAST WINDS 20 TO 25 MPH.
MAZ023-210800-
DUKES MA-
INCLUDING THE CITY OF VINEYARD HAVEN
407 PM EDT SUN SEP 20 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLDY MCLDY MCLDY MCLDY
PRECIP TYPE RAIN RAIN NONE SHOWERS
CHANCE PRECIP (%) 100 60 10 30
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 59 (+7) 62 (-4) 56 64
RH % (24H TREND) 97 (+1) 62 (+9) 87 65
20FT WND AM(MPH) N 12 G25 NE 15 G23
20FT WND PM(MPH) SE 7 NE 14 G24 NE 12 G20 NE 16 G23
PRECIP AMOUNT 0.17 0.08 0.00 0.01
PRECIP DURATION 8 2 1
PRECIP BEGIN 6 PM CONTINUING 10 AM
PRECIP END CONTINUING 11 AM 6 PM
MIXING HGT (FT-AGL) 740 2730 1700 4180
TRANSPORT WND (KTS) S 10 NE 21 NE 16 NE 19
VENT RATE (KT-FT) 7400 57330 27200 79420
MAX ADI EARLY 21 FAIR 1 VERY POOR 28 FAIR 26 FAIR
MAX ADI LATE 13 GEN POOR 1 VERY POOR 26 FAIR 1 VERY POOR
MAX LVORI EARLY 9 7 3 5
MAX LVORI LATE 9 7 3 5
MIN VSBY EARLY 5 FOG 3 FOG 10 9
MIN VSBY LATE 2 FOG 10 10 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 50 40 0 10
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
TUESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE MID 50S. NORTHEAST WINDS 20 TO 25 MPH.
WEDNESDAY THROUGH THURSDAY
WINDY. MOSTLY CLOUDY. LOWS IN THE
MID 50S. HIGHS IN THE MID 60S. NORTHEAST WINDS 20 TO 30 MPH.
THURSDAY NIGHT THROUGH SUNDAY
WINDY. MOSTLY CLOUDY WITH A
CHANCE OF SHOWERS. LOWS IN THE MID 50S. HIGHS IN THE MID 60S.
NORTHEAST WINDS 20 TO 30 MPH.
MAZ024-210800-
NANTUCKET MA-
INCLUDING THE CITY OF NANTUCKET
407 PM EDT SUN SEP 20 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER CLOUDY MCLDY MCLDY MCLDY
PRECIP TYPE RAIN RAIN NONE SHOWERS
CHANCE PRECIP (%) 100 100 10 30
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 60 (+6) 62 (-3) 57 64
RH % (24H TREND) 100 (+10) 81 (+26) 90 73
20FT WND AM(MPH) NE 11 G23 NE 16 G23
20FT WND PM(MPH) SE 7 NE 15 G23 NE 14 G20 NE 16 G23
PRECIP AMOUNT 0.14 0.09 0.00 0.00
PRECIP DURATION 10 2
PRECIP BEGIN 6 PM CONTINUING
PRECIP END CONTINUING 12 PM
MIXING HGT (FT-AGL) 530 2600 2170 3920
TRANSPORT WND (KTS) S 9 NE 22 NE 19 NE 20
VENT RATE (KT-FT) 4770 57200 41230 78400
MAX ADI EARLY 18 GEN POOR 1 VERY POOR 32 FAIR 1 VERY POOR
MAX ADI LATE 12 POOR 1 VERY POOR 28 FAIR 1 VERY POOR
MAX LVORI EARLY 9 7 4 6
MAX LVORI LATE 9 7 4 6
MIN VSBY EARLY 6 FOG 3 FOG 10 9
MIN VSBY LATE 2 FOG 10 10 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 40 30 0 10
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
TUESDAY NIGHT
BREEZY. MOSTLY CLOUDY WITH A CHANCE OF SHOWERS.
LOWS IN THE UPPER 50S. NORTHEAST WINDS 20 TO 25 MPH.
WEDNESDAY THROUGH THURSDAY
WINDY. MOSTLY CLOUDY. LOWS IN THE
UPPER 50S. HIGHS IN THE MID 60S. NORTHEAST WINDS 20 TO 30 MPH.
THURSDAY NIGHT THROUGH SUNDAY
WINDY. MOSTLY CLOUDY WITH A
CHANCE OF SHOWERS. LOWS IN THE UPPER 50S. HIGHS IN THE MID 60S.
NORTHEAST WINDS 20 TO 30 MPH.
OUTLOOK 8 TO 14 DAYS
TEMPERATURES ABOVE NORMAL. PRECIPITATION ABOVE NORMAL.
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