156
FNUS51 KBOX 210810
FWFBOX
FIRE WEATHER PLANNING FORECAST FOR SOUTHERN NEW ENGLAND
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
409 AM EDT THU MAY 21 2026
DISCUSSION
THURSDAY SHOWERS LINGER IN THE MORNING, LASTING LONGEST OVER CT,
RI, AND SOUTHEAST MA, DRYING OUT THROUGH THE DAY. TEMPERATURES
WILL BE MUCH COOLER. DRY AND SUNNY WEATHER EXPECTED ON FRIDAY.
THURSDAY MINIMUM RELATIVE HUMIDITY WILL BE 30 TO 45 PERCENT,
EXCEPT 50 TO 60 PERCENT ALONG THE IMMEDIATE SOUTH COAST AND
CAPE/ISLANDS. FRIDAY MINIMUM RELATIVE HUMIDITY WILL BE 20 TO
35 PERCENT, EXCEPT 30 TO 45 PERCENT ALONG THE IMMEDIATE SOUTH
COAST AND CAPE/ISLANDS.
OUTLOOK...SATURDAY THROUGH WEDNESDAY
AN APPROACHING FRONTAL BOUNDARY FROM THE SOUTH WILL BRING AN
INCREASING RISK FOR SHOWERS ON SATURDAY, SPREADING FROM SW TO NE
THROUGH THE DAY BEFORE WIDESPREAD RAIN COMES OVERNIGHT AND
SUNDAY. DRYING OUT MONDAY INTO NEXT WEEK WITH WARMING
TEMPERATURES.
MAZ015-212000-
SUFFOLK MA-
INCLUDING THE CITY OF BOSTON
409 AM EDT THU MAY 21 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 10
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 66 (-25) 44 (-16) 65
RH % (24H TREND) 37 (-3) 79 (+3) 29
20FT WND AM(MPH) NE 5 NE 5
20FT WND PM(MPH) E 5 LGT/VAR E 7
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT (FT-AGL) 3820 470 5400
TRANSPORT WND (KTS) NE 6 N 11 E 8
VENT RATE (KT-FT) 22920 5170 43200
MAX ADI EARLY 27 FAIR 13 GEN POOR 56 GEN GOOD
MAX ADI LATE 26 FAIR 11 POOR 49 GEN GOOD
MAX LVORI EARLY 2 3 2
MAX LVORI LATE 2 3 2
MIN VSBY EARLY 9 9 9
MIN VSBY LATE 9 9 9
SUNSHINE HOURS N/A N/A N/A
CWR 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 50. SOUTHEAST WINDS
5 TO 10 MPH, BECOMING SOUTHWEST AFTER MIDNIGHT.
SATURDAY
MOSTLY CLOUDY. HIGHS IN THE LOWER 60S. EAST WINDS
5 TO 10 MPH.
SATURDAY NIGHT AND SUNDAY
SHOWERS. LOWS IN THE UPPER 40S.
HIGHS IN THE UPPER 50S. EAST WINDS 10 TO 15 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY WITH SHOWERS LIKELY. LOWS AROUND
50. EAST WINDS 10 TO 15 MPH.
MONDAY AND MONDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF
SHOWERS. LOWS IN THE LOWER 50S. HIGHS IN THE UPPER 60S. WEST
WINDS AROUND 5 MPH.
TUESDAY THROUGH WEDNESDAY
PARTLY CLOUDY. LOWS IN THE MID 50S.
HIGHS IN THE UPPER 70S. NORTHWEST WINDS 5 TO 10 MPH.
MAZ016-212000-
EASTERN NORFOLK MA-
INCLUDING THE CITY OF QUINCY
409 AM EDT THU MAY 21 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY PCLDY MCLEAR
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 10
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 66 (-25) 46 (-13) 64
RH % (24H TREND) 40 (+1) 77 (+4) 29
20FT WND AM(MPH) NE 5 NE 5
20FT WND PM(MPH) LGT/VAR LGT/VAR E 6
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT (FT-AGL) 3790 490 5240
TRANSPORT WND (KTS) N 6 S 5 NE 8
VENT RATE (KT-FT) 22740 2450 41920
MAX ADI EARLY 35 FAIR 14 GEN POOR 55 GEN GOOD
MAX ADI LATE 30 FAIR 13 GEN POOR 50 GEN GOOD
MAX LVORI EARLY 2 3 2
MAX LVORI LATE 2 3 2
MIN VSBY EARLY 9 9 9
MIN VSBY LATE 9 9 9
SUNSHINE HOURS N/A N/A N/A
CWR 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. SOUTHEAST
WINDS AROUND 5 MPH, BECOMING WEST AFTER MIDNIGHT.
SATURDAY
MOSTLY CLOUDY. HIGHS IN THE LOWER 60S. EAST WINDS
AROUND 5 MPH.
SATURDAY NIGHT AND SUNDAY
SHOWERS. LOWS IN THE UPPER 40S.
HIGHS IN THE UPPER 50S. EAST WINDS 5 TO 10 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY WITH SHOWERS LIKELY. LOWS AROUND
50. EAST WINDS 5 TO 10 MPH.
MONDAY AND MONDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF
SHOWERS. LOWS IN THE LOWER 50S. HIGHS IN THE UPPER 60S. WEST
WINDS AROUND 5 MPH.
TUESDAY THROUGH WEDNESDAY
PARTLY CLOUDY. LOWS IN THE MID 50S.
HIGHS IN THE UPPER 70S. NORTHWEST WINDS 5 TO 10 MPH.
MAZ013-212000-
WESTERN NORFOLK MA-
INCLUDING THE CITIES OF FOXBOROUGH AND NORWOOD
409 AM EDT THU MAY 21 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY PCLDY MCLEAR
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 20
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 66 (-27) 42 (-17) 67
RH % (24H TREND) 34 (-6) 86 (+8) 26
20FT WND AM(MPH) LGT/VAR LGT/VAR
20FT WND PM(MPH) LGT/VAR LGT/VAR E 5
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT (FT-AGL) 5050 410 7010
TRANSPORT WND (KTS) NW 7 N 9 NE 7
VENT RATE (KT-FT) 35350 3690 49070
MAX ADI EARLY 37 FAIR 34 FAIR 64 GOOD
MAX ADI LATE 53 GEN GOOD 10 POOR 65 GOOD
MAX LVORI EARLY 1 3 1
MAX LVORI LATE 1 3 1
MIN VSBY EARLY 9 9 9
MIN VSBY LATE 9 9 9
SUNSHINE HOURS N/A N/A N/A
CWR 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. SOUTHEAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT AND VARIABLE.
SATURDAY
MOSTLY CLOUDY. HIGHS IN THE MID 60S. EAST WINDS
AROUND 5 MPH.
SATURDAY NIGHT AND SUNDAY
SHOWERS. LOWS IN THE MID 40S. HIGHS
IN THE UPPER 50S. EAST WINDS 5 TO 10 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY WITH SHOWERS LIKELY. LOWS IN THE
UPPER 40S. EAST WINDS AROUND 5 MPH.
MONDAY AND MONDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF
SHOWERS. WARMER. LOWS 48 TO 53. HIGHS IN THE UPPER 60S. WEST
WINDS AROUND 5 MPH.
TUESDAY THROUGH WEDNESDAY
PARTLY CLOUDY. LOWS IN THE MID 50S.
HIGHS IN THE UPPER 70S. NORTHWEST WINDS AROUND 5 MPH.
MAZ014-212000-
SOUTHEAST MIDDLESEX MA-
INCLUDING THE CITY OF CAMBRIDGE
409 AM EDT THU MAY 21 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 10
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 67 (-25) 41 (-20) 65
RH % (24H TREND) 34 (-3) 82 (+9) 28
20FT WND AM(MPH) LGT/VAR LGT/VAR
20FT WND PM(MPH) LGT/VAR LGT/VAR E 6
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT (FT-AGL) 4720 400 6480
TRANSPORT WND (KTS) NW 7 N 9 E 9
VENT RATE (KT-FT) 33040 3600 58320
MAX ADI EARLY 39 FAIR 33 FAIR 59 GEN GOOD
MAX ADI LATE 45 GEN GOOD 10 POOR 70 GOOD
MAX LVORI EARLY 1 3 1
MAX LVORI LATE 1 3 1
MIN VSBY EARLY 9 9 9
MIN VSBY LATE 9 9 9
SUNSHINE HOURS N/A N/A N/A
CWR 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. SOUTHEAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT AND VARIABLE.
SATURDAY
MOSTLY CLOUDY. HIGHS IN THE MID 60S. EAST WINDS
AROUND 5 MPH.
SATURDAY NIGHT AND SUNDAY
SHOWERS. LOWS IN THE UPPER 40S.
HIGHS IN THE UPPER 50S. EAST WINDS 5 TO 10 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY WITH SHOWERS LIKELY. LOWS AROUND
50. EAST WINDS 5 TO 10 MPH.
MONDAY AND MONDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF
SHOWERS. WARMER. LOWS IN THE LOWER 50S. HIGHS IN THE UPPER 60S.
WEST WINDS AROUND 5 MPH.
TUESDAY THROUGH WEDNESDAY
PARTLY CLOUDY. LOWS IN THE MID 50S.
HIGHS IN THE UPPER 70S. NORTHWEST WINDS AROUND 5 MPH.
MAZ007-212000-
EASTERN ESSEX MA-
INCLUDING THE CITY OF GLOUCESTER
409 AM EDT THU MAY 21 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 10
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 66 (-22) 41 (-17) 64
RH % (24H TREND) 38 (-1) 86 (-1) 32
20FT WND AM(MPH) LGT/VAR NE 5
20FT WND PM(MPH) LGT/VAR LGT/VAR E 5
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT (FT-AGL) 3720 370 4340
TRANSPORT WND (KTS) N 7 N 10 NE 9
VENT RATE (KT-FT) 26040 3700 39060
MAX ADI EARLY 26 FAIR 11 POOR 46 GEN GOOD
MAX ADI LATE 25 FAIR 11 POOR 42 GEN GOOD
MAX LVORI EARLY 2 3 2
MAX LVORI LATE 2 3 2
MIN VSBY EARLY 9 9 9
MIN VSBY LATE 9 9 9
SUNSHINE HOURS N/A N/A N/A
CWR 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. SOUTH WINDS
5 TO 10 MPH, BECOMING WEST AFTER MIDNIGHT.
SATURDAY
MOSTLY CLOUDY. HIGHS IN THE LOWER 60S. NORTHEAST
WINDS AROUND 5 MPH, BECOMING EAST IN THE AFTERNOON.
SATURDAY NIGHT
CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN THE
UPPER 40S. SOUTHEAST WINDS 5 TO 10 MPH.
SUNDAY
CLOUDY WITH SHOWERS LIKELY. HIGHS IN THE UPPER 50S.
EAST WINDS 10 TO 15 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY WITH SHOWERS LIKELY. LOWS IN THE
UPPER 40S. EAST WINDS 10 TO 15 MPH.
MONDAY AND MONDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF
SHOWERS. LOWS IN THE LOWER 50S. HIGHS IN THE MID 60S. WEST WINDS
5 TO 10 MPH.
TUESDAY THROUGH WEDNESDAY
PARTLY CLOUDY. LOWS IN THE MID 50S.
HIGHS IN THE MID 70S. NORTHWEST WINDS 5 TO 10 MPH.
MAZ006-212000-
WESTERN ESSEX MA-
INCLUDING THE CITY OF LAWRENCE
409 AM EDT THU MAY 21 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 10
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 67 (-24) 41 (-19) 67
RH % (24H TREND) 28 (-8) 82 (+6) 26
20FT WND AM(MPH) LGT/VAR LGT/VAR
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT (FT-AGL) 5340 380 7380
TRANSPORT WND (KTS) NW 9 N 8 SE 9
VENT RATE (KT-FT) 48060 3040 66420
MAX ADI EARLY 49 GEN GOOD 46 GEN GOOD 58 GEN GOOD
MAX ADI LATE 67 GOOD 9 POOR 77 GOOD
MAX LVORI EARLY 1 3 1
MAX LVORI LATE 1 3 1
MIN VSBY EARLY 9 9 9
MIN VSBY LATE 9 9 9
SUNSHINE HOURS N/A N/A N/A
CWR 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. SOUTH WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT AND VARIABLE.
SATURDAY
MOSTLY CLOUDY. HIGHS IN THE MID 60S. EAST WINDS
AROUND 5 MPH.
SATURDAY NIGHT
CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN THE
MID 40S. SOUTHEAST WINDS AROUND 5 MPH.
SUNDAY AND SUNDAY NIGHT
MOSTLY CLOUDY WITH SHOWERS LIKELY.
LOWS IN THE UPPER 40S. HIGHS IN THE MID 50S. EAST WINDS 5 TO
10 MPH.
MONDAY AND MONDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF
SHOWERS. WARMER. LOWS 47 TO 52. HIGHS IN THE UPPER 60S. WEST
WINDS AROUND 5 MPH.
TUESDAY THROUGH WEDNESDAY
PARTLY CLOUDY. LOWS IN THE MID 50S.
HIGHS IN THE UPPER 70S. NORTHWEST WINDS AROUND 5 MPH.
MAZ005-212000-
CENTRAL MIDDLESEX MA-
INCLUDING THE CITIES OF FRAMINGHAM AND LOWELL
409 AM EDT THU MAY 21 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 10
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 67 (-25) 40 (-19) 68
RH % (24H TREND) 30 (-6) 85 (+9) 25
20FT WND AM(MPH) LGT/VAR LGT/VAR
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT (FT-AGL) 5280 380 7430
TRANSPORT WND (KTS) NW 9 N 8 NE 7
VENT RATE (KT-FT) 47520 3040 52010
MAX ADI EARLY 45 GEN GOOD 47 GEN GOOD 58 GEN GOOD
MAX ADI LATE 64 GOOD 9 POOR 70 GOOD
MAX LVORI EARLY 1 3 1
MAX LVORI LATE 1 3 1
MIN VSBY EARLY 9 9 9
MIN VSBY LATE 9 9 9
SUNSHINE HOURS N/A N/A N/A
CWR 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. SOUTHEAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT AND VARIABLE.
SATURDAY
MOSTLY CLOUDY. HIGHS IN THE MID 60S. EAST WINDS 5 TO
10 MPH.
SATURDAY NIGHT AND SUNDAY
SHOWERS. LOWS IN THE MID 40S. HIGHS
IN THE UPPER 50S. EAST WINDS 5 TO 10 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY WITH SHOWERS LIKELY. LOWS IN THE
UPPER 40S. NORTHEAST WINDS 5 TO 10 MPH.
MONDAY AND MONDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF
SHOWERS. WARMER. LOWS 48 TO 53. HIGHS IN THE UPPER 60S. WEST
WINDS AROUND 5 MPH.
TUESDAY THROUGH WEDNESDAY
PARTLY CLOUDY. LOWS IN THE MID 50S.
HIGHS AROUND 80. NORTHWEST WINDS AROUND 5 MPH.
MAZ012-212000-
SOUTHERN WORCESTER MA-
INCLUDING THE CITIES OF MILFORD AND WORCESTER
409 AM EDT THU MAY 21 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY PCLDY MCLEAR
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 20
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 67 (-25) 42 (-16) 69
RH % (24H TREND) 30 (-10) 82 (+4) 25
20FT WND AM(MPH) LGT/VAR LGT/VAR
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT (FT-AGL) 4860 420 7220
TRANSPORT WND (KTS) NW 7 NE 9 NE 6
VENT RATE (KT-FT) 34020 3780 43320
MAX ADI EARLY 35 FAIR 42 GEN GOOD 58 GEN GOOD
MAX ADI LATE 54 GEN GOOD 11 POOR 64 GOOD
MAX LVORI EARLY 1 3 1
MAX LVORI LATE 1 3 1
MIN VSBY EARLY 9 9 9
MIN VSBY LATE 9 9 9
SUNSHINE HOURS N/A N/A N/A
CWR 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. SOUTHEAST
WINDS AROUND 5 MPH, BECOMING WEST AFTER MIDNIGHT.
SATURDAY
MOSTLY CLOUDY. HIGHS IN THE MID 60S. EAST WINDS 5 TO
10 MPH.
SATURDAY NIGHT
CLOUDY WITH SHOWERS LIKELY. LOWS IN THE MID
40S. EAST WINDS 5 TO 10 MPH.
SUNDAY AND SUNDAY NIGHT
SHOWERS. LOWS IN THE UPPER 40S. HIGHS
IN THE UPPER 50S. NORTHEAST WINDS 5 TO 10 MPH.
MONDAY AND MONDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF
SHOWERS. WARMER. LOWS 48 TO 53. HIGHS AROUND 70. WEST WINDS
AROUND 5 MPH.
TUESDAY THROUGH WEDNESDAY
PARTLY CLOUDY. LOWS IN THE MID 50S.
HIGHS IN THE LOWER 80S. NORTHWEST WINDS 5 TO 10 MPH.
MAZ004-212000-
NORTHERN WORCESTER MA-
INCLUDING THE CITIES OF BARRE AND FITCHBURG
409 AM EDT THU MAY 21 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 10
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 66 (-22) 39 (-17) 69
RH % (24H TREND) 28 (-7) 89 (+8) 23
20FT WND AM(MPH) LGT/VAR LGT/VAR
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT (FT-AGL) 4820 400 7440
TRANSPORT WND (KTS) NW 9 NE 8 N 6
VENT RATE (KT-FT) 43380 3200 44640
MAX ADI EARLY 36 FAIR 48 GEN GOOD 55 GEN GOOD
MAX ADI LATE 59 GEN GOOD 9 POOR 59 GEN GOOD
MAX LVORI EARLY 1 3 1
MAX LVORI LATE 1 3 1
MIN VSBY EARLY 9 9 9
MIN VSBY LATE 9 9 9
SUNSHINE HOURS N/A N/A N/A
CWR 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 40S. SOUTHEAST
WINDS AROUND 5 MPH, BECOMING WEST AFTER MIDNIGHT.
SATURDAY
MOSTLY CLOUDY. HIGHS IN THE LOWER 60S. EAST WINDS
5 TO 10 MPH.
SATURDAY NIGHT
CLOUDY WITH SHOWERS LIKELY. LOWS IN THE MID
40S. EAST WINDS 5 TO 10 MPH.
SUNDAY AND SUNDAY NIGHT
SHOWERS. LOWS IN THE MID 40S. HIGHS IN
THE MID 50S. NORTHEAST WINDS 5 TO 10 MPH.
MONDAY AND MONDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF
SHOWERS. WARMER. LOWS 46 TO 52. HIGHS IN THE UPPER 60S. NORTHWEST
WINDS AROUND 5 MPH.
TUESDAY THROUGH WEDNESDAY
PARTLY CLOUDY. LOWS IN THE MID 50S.
HIGHS IN THE UPPER 70S. NORTHWEST WINDS 5 TO 10 MPH.
MAZ026-212000-
NORTHERN MIDDLESEX MA-
INCLUDING THE CITY OF AYER
409 AM EDT THU MAY 21 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 10
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 68 (-22) 40 (-17) 69
RH % (24H TREND) 32 (-5) 76 (+5) 25
20FT WND AM(MPH) LGT/VAR LGT/VAR
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT (FT-AGL) 5250 390 7350
TRANSPORT WND (KTS) NW 9 N 7 N 6
VENT RATE (KT-FT) 47250 2730 44100
MAX ADI EARLY 47 GEN GOOD 57 GEN GOOD 51 GEN GOOD
MAX ADI LATE 67 GOOD 8 POOR 60 GEN GOOD
MAX LVORI EARLY 1 3 1
MAX LVORI LATE 1 3 1
MIN VSBY EARLY 9 9 9
MIN VSBY LATE 9 9 9
SUNSHINE HOURS N/A N/A N/A
CWR 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 40S. SOUTH WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT AND VARIABLE.
SATURDAY
MOSTLY CLOUDY. HIGHS IN THE MID 60S. EAST WINDS
AROUND 5 MPH.
SATURDAY NIGHT
CLOUDY WITH SHOWERS LIKELY. LOWS IN THE MID
40S. EAST WINDS AROUND 5 MPH.
SUNDAY
SHOWERS. HIGHS IN THE MID 50S. EAST WINDS 5 TO 10 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY WITH SHOWERS LIKELY. LOWS IN THE
MID 40S. NORTHEAST WINDS AROUND 5 MPH.
MONDAY AND MONDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF
SHOWERS. WARMER. LOWS 46 TO 52. HIGHS IN THE UPPER 60S. NORTHWEST
WINDS AROUND 5 MPH.
TUESDAY THROUGH WEDNESDAY
PARTLY CLOUDY. LOWS IN THE MID 50S.
HIGHS IN THE UPPER 70S. NORTHWEST WINDS AROUND 5 MPH.
MAZ002-212000-
WESTERN FRANKLIN MA-
INCLUDING THE CITY OF CHARLEMONT
409 AM EDT THU MAY 21 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 10
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 66 (-17) 36 (-19) 69
RH % (24H TREND) 27 (-5) 85 (+7) 21
20FT WND AM(MPH) LGT/VAR LGT/VAR
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT (FT-AGL) 5110 410 6800
TRANSPORT WND (KTS) NW 9 N 8 NE 7
VENT RATE (KT-FT) 45990 3280 47600
MAX ADI EARLY 41 GEN GOOD 51 GEN GOOD 48 GEN GOOD
MAX ADI LATE 60 GEN GOOD 9 POOR 65 GOOD
MAX LVORI EARLY 1 3 1
MAX LVORI LATE 1 3 1
MIN VSBY EARLY 9 9 9
MIN VSBY LATE 9 9 9
SUNSHINE HOURS N/A N/A N/A
CWR 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 40S. EAST WINDS
AROUND 5 MPH.
SATURDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. HIGHS IN THE
LOWER 60S. EAST WINDS AROUND 5 MPH.
SATURDAY NIGHT
SHOWERS. LOWS IN THE LOWER 40S. SOUTHEAST WINDS
10 TO 15 MPH.
SUNDAY
SHOWERS. HIGHS IN THE MID 50S. EAST WINDS 10 TO 15 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE MID 40S. NORTHEAST WINDS 5 TO 10 MPH.
MONDAY AND MONDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF
SHOWERS. WARMER. LOWS 46 TO 52. HIGHS IN THE UPPER 60S. NORTHWEST
WINDS AROUND 5 MPH.
TUESDAY THROUGH WEDNESDAY
PARTLY CLOUDY. LOWS IN THE LOWER
50S. HIGHS IN THE UPPER 70S. NORTHWEST WINDS AROUND 5 MPH.
MAZ003-212000-
EASTERN FRANKLIN MA-
INCLUDING THE CITIES OF GREENFIELD AND ORANGE
409 AM EDT THU MAY 21 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 10
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 69 (-19) 35 (-21) 71
RH % (24H TREND) 28 (-5) 96 (+12) 23
20FT WND AM(MPH) N 5 LGT/VAR
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT (FT-AGL) 5150 380 7180
TRANSPORT WND (KTS) NW 9 N 7 N 6
VENT RATE (KT-FT) 46350 2660 43080
MAX ADI EARLY 41 GEN GOOD 54 GEN GOOD 49 GEN GOOD
MAX ADI LATE 61 GOOD 8 POOR 62 GOOD
MAX LVORI EARLY 1 3 1
MAX LVORI LATE 1 3 1
MIN VSBY EARLY 9 9 9
MIN VSBY LATE 9 9 9
SUNSHINE HOURS N/A N/A N/A
CWR 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 40S. SOUTHEAST
WINDS AROUND 5 MPH.
SATURDAY
MOSTLY CLOUDY. HIGHS IN THE MID 60S. NORTHEAST WINDS
AROUND 5 MPH, BECOMING SOUTHEAST AROUND 5 MPH IN THE AFTERNOON.
SATURDAY NIGHT
CLOUDY WITH SHOWERS LIKELY. LOWS IN THE MID
40S. SOUTHEAST WINDS 5 TO 10 MPH.
SUNDAY
SHOWERS. HIGHS IN THE MID 50S. EAST WINDS 5 TO 10 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE UPPER 40S. NORTHEAST WINDS 5 TO 10 MPH.
MONDAY AND MONDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF
SHOWERS. WARMER. LOWS 47 TO 52. HIGHS IN THE LOWER 70S. NORTHWEST
WINDS AROUND 5 MPH.
TUESDAY AND TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S.
HIGHS AROUND 80. NORTHWEST WINDS AROUND 5 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE LOWER 80S. NORTHWEST WINDS 5 TO
10 MPH.
MAZ008-212000-
WESTERN HAMPSHIRE MA-
INCLUDING THE CITY OF CHESTERFIELD
409 AM EDT THU MAY 21 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 10
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 66 (-19) 37 (-19) 69
RH % (24H TREND) 30 (-4) 79 (+1) 25
20FT WND AM(MPH) LGT/VAR LGT/VAR
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT (FT-AGL) 4710 430 6750
TRANSPORT WND (KTS) NW 8 N 9 NE 7
VENT RATE (KT-FT) 37680 3870 47250
MAX ADI EARLY 40 FAIR 42 GEN GOOD 53 GEN GOOD
MAX ADI LATE 54 GEN GOOD 10 POOR 62 GOOD
MAX LVORI EARLY 1 3 1
MAX LVORI LATE 1 3 1
MIN VSBY EARLY 9 9 9
MIN VSBY LATE 9 9 9
SUNSHINE HOURS N/A N/A N/A
CWR 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 40S. EAST WINDS
AROUND 5 MPH.
SATURDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. HIGHS IN THE
LOWER 60S. EAST WINDS AROUND 5 MPH.
SATURDAY NIGHT
SHOWERS. LOWS IN THE LOWER 40S. SOUTHEAST WINDS
5 TO 10 MPH.
SUNDAY
SHOWERS. HIGHS IN THE MID 50S. EAST WINDS 5 TO 10 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE MID 40S. NORTHEAST WINDS 5 TO 10 MPH.
MONDAY AND MONDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF
SHOWERS. WARMER. LOWS 46 TO 52. HIGHS AROUND 70. NORTHWEST WINDS
AROUND 5 MPH.
TUESDAY AND TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S.
HIGHS IN THE UPPER 70S. WEST WINDS AROUND 5 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS
AROUND 5 MPH.
MAZ010-212000-
EASTERN HAMPSHIRE MA-
INCLUDING THE CITIES OF AMHERST AND NORTHAMPTON
409 AM EDT THU MAY 21 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 10
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 69 (-21) 37 (-21) 72
RH % (24H TREND) 32 (-1) 89 (+5) 25
20FT WND AM(MPH) N 5 LGT/VAR
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT (FT-AGL) 4840 410 7200
TRANSPORT WND (KTS) NW 7 N 8 NE 6
VENT RATE (KT-FT) 33880 3280 43200
MAX ADI EARLY 37 FAIR 37 FAIR 54 GEN GOOD
MAX ADI LATE 49 GEN GOOD 9 POOR 59 GEN GOOD
MAX LVORI EARLY 1 3 1
MAX LVORI LATE 1 3 1
MIN VSBY EARLY 9 9 9
MIN VSBY LATE 9 9 9
SUNSHINE HOURS N/A N/A N/A
CWR 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. SOUTHEAST
WINDS AROUND 5 MPH.
SATURDAY
CLOUDY WITH A CHANCE OF SHOWERS. HIGHS IN THE MID
60S. NORTHEAST WINDS AROUND 5 MPH, BECOMING SOUTHEAST AROUND
5 MPH IN THE AFTERNOON.
SATURDAY NIGHT
SHOWERS. LOWS IN THE MID 40S. EAST WINDS 5 TO
10 MPH.
SUNDAY
SHOWERS. HIGHS IN THE UPPER 50S. EAST WINDS 5 TO
10 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE UPPER 40S. NORTHEAST WINDS 5 TO 10 MPH.
MONDAY AND MONDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF
SHOWERS. WARMER. LOWS 49 TO 54. HIGHS IN THE LOWER 70S. NORTHWEST
WINDS AROUND 5 MPH.
TUESDAY AND TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S.
HIGHS IN THE LOWER 80S. NORTHWEST WINDS AROUND 5 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE LOWER 80S. NORTHWEST WINDS 5 TO
10 MPH.
MAZ009-212000-
WESTERN HAMPDEN MA-
INCLUDING THE CITY OF BLANDFORD
409 AM EDT THU MAY 21 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 10
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 67 (-20) 39 (-17) 70
RH % (24H TREND) 32 (-4) 73 (0) 27
20FT WND AM(MPH) LGT/VAR LGT/VAR
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT (FT-AGL) 4640 430 6480
TRANSPORT WND (KTS) NW 8 N 7 NE 8
VENT RATE (KT-FT) 37120 3010 51840
MAX ADI EARLY 36 FAIR 34 FAIR 52 GEN GOOD
MAX ADI LATE 50 GEN GOOD 11 POOR 71 GOOD
MAX LVORI EARLY 1 3 1
MAX LVORI LATE 1 3 1
MIN VSBY EARLY 9 9 9
MIN VSBY LATE 9 9 9
SUNSHINE HOURS N/A N/A N/A
CWR 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 40S. SOUTHEAST
WINDS AROUND 5 MPH.
SATURDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. HIGHS IN THE
LOWER 60S. EAST WINDS AROUND 5 MPH.
SATURDAY NIGHT
SHOWERS. LOWS IN THE LOWER 40S. EAST WINDS 5 TO
10 MPH.
SUNDAY
SHOWERS. HIGHS IN THE MID 50S. EAST WINDS 5 TO 10 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE UPPER 40S. NORTHEAST WINDS 5 TO 10 MPH.
MONDAY AND MONDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF
SHOWERS. WARMER. LOWS 47 TO 53. HIGHS IN THE LOWER 70S. NORTHWEST
WINDS AROUND 5 MPH.
TUESDAY AND TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S.
HIGHS IN THE UPPER 70S. WEST WINDS AROUND 5 MPH.
WEDNESDAY
SUNNY. HIGHS AROUND 80. NORTHWEST WINDS AROUND
5 MPH.
MAZ011-212000-
EASTERN HAMPDEN MA-
INCLUDING THE CITY OF SPRINGFIELD
409 AM EDT THU MAY 21 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 20
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 68 (-23) 41 (-17) 72
RH % (24H TREND) 31 (-4) 86 (+2) 24
20FT WND AM(MPH) N 5 NE 5
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT (FT-AGL) 4610 410 7190
TRANSPORT WND (KTS) NW 7 NE 8 NE 6
VENT RATE (KT-FT) 32270 3280 43140
MAX ADI EARLY 35 FAIR 32 FAIR 54 GEN GOOD
MAX ADI LATE 46 GEN GOOD 10 POOR 59 GEN GOOD
MAX LVORI EARLY 1 3 1
MAX LVORI LATE 1 3 1
MIN VSBY EARLY 9 9 9
MIN VSBY LATE 9 9 9
SUNSHINE HOURS N/A N/A N/A
CWR 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. SOUTHEAST
WINDS AROUND 5 MPH.
SATURDAY
CLOUDY WITH A CHANCE OF SHOWERS. HIGHS IN THE MID
60S. EAST WINDS AROUND 5 MPH.
SATURDAY NIGHT
SHOWERS. LOWS IN THE MID 40S. EAST WINDS 5 TO
10 MPH.
SUNDAY
SHOWERS. HIGHS IN THE UPPER 50S. EAST WINDS 5 TO
10 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE UPPER 40S. NORTHEAST WINDS 5 TO 10 MPH.
MONDAY AND MONDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF
SHOWERS. WARMER. LOWS 49 TO 54. HIGHS IN THE LOWER 70S. WEST
WINDS AROUND 5 MPH.
TUESDAY AND TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S.
HIGHS IN THE LOWER 80S. WEST WINDS AROUND 5 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE LOWER 80S. NORTHWEST WINDS 5 TO
10 MPH.
CTZ002-212000-
HARTFORD CT-
INCLUDING THE CITIES OF HARTFORD AND WINDSOR LOCKS
409 AM EDT THU MAY 21 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY PCLDY MCLEAR
PRECIP TYPE SHOWERS NONE NONE
CHANCE PRECIP (%) 20
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 68 (-24) 43 (-16) 71
RH % (24H TREND) 36 (-4) 83 (+7) 25
20FT WND AM(MPH) N 5 LGT/VAR
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.03 0.00 0.00
PRECIP DURATION 1
PRECIP BEGIN 6 AM
PRECIP END 11 AM
MIXING HGT (FT-AGL) 4400 410 7370
TRANSPORT WND (KTS) NW 6 NE 5 E 8
VENT RATE (KT-FT) 26400 2050 58960
MAX ADI EARLY 37 FAIR 26 FAIR 59 GEN GOOD
MAX ADI LATE 37 FAIR 10 POOR 74 GOOD
MAX LVORI EARLY 1 3 1
MAX LVORI LATE 1 3 1
MIN VSBY EARLY 9 9 9
MIN VSBY LATE 9 9 9
SUNSHINE HOURS N/A N/A N/A
CWR 10 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. SOUTH WINDS
AROUND 5 MPH, BECOMING NORTHEAST AFTER MIDNIGHT.
SATURDAY
CLOUDY WITH A CHANCE OF SHOWERS. HIGHS IN THE LOWER
60S. EAST WINDS 5 TO 10 MPH.
SATURDAY NIGHT
SHOWERS. LOWS IN THE MID 40S. EAST WINDS 5 TO
10 MPH.
SUNDAY
SHOWERS. HIGHS AROUND 60. EAST WINDS 5 TO 10 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS
AROUND 50. NORTHEAST WINDS 5 TO 10 MPH.
MONDAY AND MONDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF
SHOWERS. WARMER. LOWS 50 TO 55. HIGHS IN THE LOWER 70S. NORTHWEST
WINDS AROUND 5 MPH.
TUESDAY THROUGH WEDNESDAY
PARTLY CLOUDY. LOWS IN THE UPPER
50S. HIGHS IN THE LOWER 80S. NORTHWEST WINDS AROUND 5 MPH.
CTZ003-212000-
TOLLAND CT-
INCLUDING THE CITIES OF UNION AND VERNON
409 AM EDT THU MAY 21 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY PCLDY MCLEAR
PRECIP TYPE SHOWERS NONE NONE
CHANCE PRECIP (%) 20
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 66 (-26) 42 (-16) 70
RH % (24H TREND) 40 (-2) 83 (+5) 29
20FT WND AM(MPH) N 5 LGT/VAR
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.02 0.00 0.00
PRECIP DURATION 1
PRECIP BEGIN 6 AM
PRECIP END 11 AM
MIXING HGT (FT-AGL) 4250 400 7220
TRANSPORT WND (KTS) NW 7 N 5 E 7
VENT RATE (KT-FT) 29750 2000 50540
MAX ADI EARLY 28 FAIR 25 FAIR 57 GEN GOOD
MAX ADI LATE 40 FAIR 11 POOR 68 GOOD
MAX LVORI EARLY 2 3 1
MAX LVORI LATE 2 3 1
MIN VSBY EARLY 9 9 9
MIN VSBY LATE 9 9 9
SUNSHINE HOURS N/A N/A N/A
CWR 10 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. SOUTHEAST
WINDS AROUND 5 MPH, BECOMING EAST AFTER MIDNIGHT.
SATURDAY
CLOUDY WITH A CHANCE OF SHOWERS. HIGHS IN THE LOWER
60S. EAST WINDS AROUND 5 MPH.
SATURDAY NIGHT
SHOWERS. LOWS IN THE MID 40S. EAST WINDS 5 TO
10 MPH.
SUNDAY
SHOWERS. HIGHS IN THE UPPER 50S. EAST WINDS 5 TO
10 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS
AROUND 50. NORTHEAST WINDS 5 TO 10 MPH.
MONDAY AND MONDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF
SHOWERS. WARMER. LOWS 50 TO 55. HIGHS IN THE LOWER 70S. WEST
WINDS AROUND 5 MPH.
TUESDAY THROUGH WEDNESDAY
PARTLY CLOUDY. LOWS IN THE MID 50S.
HIGHS IN THE LOWER 80S. NORTHWEST WINDS AROUND 5 MPH.
CTZ004-212000-
WINDHAM CT-
INCLUDING THE CITIES OF PUTNAM AND WILLIMANTIC
409 AM EDT THU MAY 21 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY PCLDY MCLEAR
PRECIP TYPE SHOWERS NONE NONE
CHANCE PRECIP (%) 20
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 67 (-25) 44 (-14) 69
RH % (24H TREND) 39 (-1) 86 (+5) 28
20FT WND AM(MPH) LGT/VAR NE 5
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.03 0.00 0.00
PRECIP DURATION 1
PRECIP BEGIN 6 AM
PRECIP END 12 PM
MIXING HGT (FT-AGL) 4470 420 7200
TRANSPORT WND (KTS) NW 6 NE 5 NE 7
VENT RATE (KT-FT) 26820 2100 50400
MAX ADI EARLY 30 FAIR 25 FAIR 60 GEN GOOD
MAX ADI LATE 40 FAIR 11 POOR 69 GOOD
MAX LVORI EARLY 2 3 1
MAX LVORI LATE 2 3 1
MIN VSBY EARLY 9 9 9
MIN VSBY LATE 9 9 9
SUNSHINE HOURS N/A N/A N/A
CWR 10 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 40S. SOUTHEAST
WINDS AROUND 5 MPH, BECOMING EAST AFTER MIDNIGHT.
SATURDAY
CLOUDY WITH A CHANCE OF SHOWERS. HIGHS IN THE LOWER
60S. EAST WINDS AROUND 5 MPH.
SATURDAY NIGHT
SHOWERS. LOWS IN THE MID 40S. EAST WINDS 5 TO
10 MPH.
SUNDAY
SHOWERS. HIGHS IN THE UPPER 50S. EAST WINDS 5 TO
10 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS
AROUND 50. NORTHEAST WINDS 5 TO 10 MPH.
MONDAY AND MONDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF
SHOWERS. WARMER. LOWS IN THE LOWER 50S. HIGHS IN THE LOWER 70S.
NORTHWEST WINDS AROUND 5 MPH.
TUESDAY THROUGH WEDNESDAY
PARTLY CLOUDY. LOWS IN THE MID 50S.
HIGHS IN THE LOWER 80S. NORTHWEST WINDS AROUND 5 MPH.
RIZ001-212000-
NORTHWEST PROVIDENCE RI-
INCLUDING THE CITIES OF FOSTER AND SMITHFIELD
409 AM EDT THU MAY 21 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY PCLDY MCLEAR
PRECIP TYPE SHOWERS NONE NONE
CHANCE PRECIP (%) 20
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 66 (-26) 43 (-16) 67
RH % (24H TREND) 40 (-1) 86 (+8) 29
20FT WND AM(MPH) N 5 NE 5
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.03 0.00 0.00
PRECIP DURATION 1
PRECIP BEGIN 6 AM
PRECIP END 11 AM
MIXING HGT (FT-AGL) 4810 420 7260
TRANSPORT WND (KTS) NW 7 SE 5 NE 7
VENT RATE (KT-FT) 33670 2100 50820
MAX ADI EARLY 36 FAIR 26 FAIR 63 GOOD
MAX ADI LATE 46 GEN GOOD 11 POOR 69 GOOD
MAX LVORI EARLY 1 3 1
MAX LVORI LATE 1 3 1
MIN VSBY EARLY 9 9 9
MIN VSBY LATE 9 9 9
SUNSHINE HOURS N/A N/A N/A
CWR 10 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. SOUTHEAST
WINDS AROUND 5 MPH, BECOMING NORTH AFTER MIDNIGHT.
SATURDAY
MOSTLY CLOUDY. HIGHS IN THE LOWER 60S. EAST WINDS
AROUND 5 MPH.
SATURDAY NIGHT
CLOUDY WITH SHOWERS LIKELY. LOWS IN THE MID
40S. EAST WINDS 5 TO 10 MPH.
SUNDAY AND SUNDAY NIGHT
SHOWERS. LOWS IN THE UPPER 40S. HIGHS
IN THE UPPER 50S. NORTHEAST WINDS 5 TO 10 MPH.
MONDAY AND MONDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF
SHOWERS. WARMER. LOWS IN THE LOWER 50S. HIGHS AROUND 70. WEST
WINDS AROUND 5 MPH.
TUESDAY THROUGH WEDNESDAY
PARTLY CLOUDY. LOWS IN THE MID 50S.
HIGHS AROUND 80. NORTHWEST WINDS AROUND 5 MPH.
RIZ002-212000-
SOUTHEAST PROVIDENCE RI-
INCLUDING THE CITY OF PROVIDENCE
409 AM EDT THU MAY 21 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS NONE NONE
CHANCE PRECIP (%) 20
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 67 (-26) 45 (-14) 68
RH % (24H TREND) 45 (+5) 86 (+8) 33
20FT WND AM(MPH) N 5 NE 5
20FT WND PM(MPH) LGT/VAR LGT/VAR E 5
PRECIP AMOUNT 0.04 0.00 0.00
PRECIP DURATION 1
PRECIP BEGIN 6 AM
PRECIP END 12 PM
MIXING HGT (FT-AGL) 4430 460 6970
TRANSPORT WND (KTS) NW 7 N 9 E 8
VENT RATE (KT-FT) 31010 4140 55760
MAX ADI EARLY 45 GEN GOOD 22 FAIR 64 GOOD
MAX ADI LATE 41 GEN GOOD 11 POOR 71 GOOD
MAX LVORI EARLY 2 4 1
MAX LVORI LATE 2 4 1
MIN VSBY EARLY 9 9 9
MIN VSBY LATE 9 9 9
SUNSHINE HOURS N/A N/A N/A
CWR 20 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. SOUTHEAST
WINDS AROUND 5 MPH, BECOMING NORTHEAST AFTER MIDNIGHT.
SATURDAY
MOSTLY CLOUDY. HIGHS IN THE MID 60S. EAST WINDS 5 TO
10 MPH.
SATURDAY NIGHT AND SUNDAY
SHOWERS. LOWS IN THE UPPER 40S.
HIGHS AROUND 60. EAST WINDS 5 TO 10 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY WITH SHOWERS LIKELY. LOWS AROUND
50. NORTHEAST WINDS 5 TO 10 MPH.
MONDAY AND MONDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF
SHOWERS. WARMER. LOWS IN THE LOWER 50S. HIGHS IN THE LOWER 70S.
WEST WINDS AROUND 5 MPH.
TUESDAY THROUGH WEDNESDAY
PARTLY CLOUDY. LOWS IN THE MID 50S.
HIGHS AROUND 80. NORTHWEST WINDS 5 TO 10 MPH.
RIZ003-212000-
WESTERN KENT RI-
INCLUDING THE CITIES OF COVENTRY AND WEST GREENWICH
409 AM EDT THU MAY 21 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS NONE NONE
CHANCE PRECIP (%) 30
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 65 (-26) 46 (-13) 66
RH % (24H TREND) 46 (+5) 86 (+8) 34
20FT WND AM(MPH) N 5 NE 6
20FT WND PM(MPH) LGT/VAR LGT/VAR E 5
PRECIP AMOUNT 0.05 0.00 0.00
PRECIP DURATION 1
PRECIP BEGIN 6 AM
PRECIP END 1 PM
MIXING HGT (FT-AGL) 4170 420 6610
TRANSPORT WND (KTS) NW 6 SW 3 NE 9
VENT RATE (KT-FT) 25020 1260 59490
MAX ADI EARLY 30 FAIR 18 GEN POOR 61 GOOD
MAX ADI LATE 35 FAIR 11 POOR 72 GOOD
MAX LVORI EARLY 2 5 1
MAX LVORI LATE 2 5 1
MIN VSBY EARLY 9 9 9
MIN VSBY LATE 9 9 9
SUNSHINE HOURS N/A N/A N/A
CWR 20 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. SOUTHEAST
WINDS AROUND 5 MPH, BECOMING NORTHEAST AFTER MIDNIGHT.
SATURDAY
MOSTLY CLOUDY. HIGHS IN THE LOWER 60S. EAST WINDS
AROUND 5 MPH.
SATURDAY NIGHT
CLOUDY WITH SHOWERS LIKELY. LOWS IN THE UPPER
40S. EAST WINDS 5 TO 10 MPH.
SUNDAY AND SUNDAY NIGHT
SHOWERS. LOWS IN THE UPPER 40S. HIGHS
IN THE UPPER 50S. NORTHEAST WINDS 5 TO 10 MPH.
MONDAY AND MONDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF
SHOWERS. WARMER. LOWS IN THE LOWER 50S. HIGHS AROUND 70. WEST
WINDS AROUND 5 MPH.
TUESDAY THROUGH WEDNESDAY
PARTLY CLOUDY. LOWS IN THE MID 50S.
HIGHS IN THE UPPER 70S. NORTHWEST WINDS AROUND 5 MPH.
RIZ004-212000-
EASTERN KENT RI-
INCLUDING THE CITIES OF EAST GREENWICH, WARWICK, AND WEST WARWICK
409 AM EDT THU MAY 21 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS NONE NONE
CHANCE PRECIP (%) 30
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 67 (-24) 47 (-12) 68
RH % (24H TREND) 41 (0) 83 (-1) 30
20FT WND AM(MPH) N 6 NE 6
20FT WND PM(MPH) LGT/VAR LGT/VAR E 6
PRECIP AMOUNT 0.04 0.00 0.00
PRECIP DURATION 1
PRECIP BEGIN 6 AM
PRECIP END 1 PM
MIXING HGT (FT-AGL) 3870 460 6360
TRANSPORT WND (KTS) N 6 NW 4 E 9
VENT RATE (KT-FT) 23220 1840 57240
MAX ADI EARLY 32 FAIR 19 GEN POOR 63 GOOD
MAX ADI LATE 30 FAIR 11 POOR 69 GOOD
MAX LVORI EARLY 2 4 1
MAX LVORI LATE 2 4 1
MIN VSBY EARLY 9 9 9
MIN VSBY LATE 9 9 9
SUNSHINE HOURS N/A N/A N/A
CWR 20 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. SOUTHEAST
WINDS AROUND 5 MPH.
SATURDAY
CLOUDY. HIGHS IN THE LOWER 60S. EAST WINDS 5 TO
10 MPH.
SATURDAY NIGHT AND SUNDAY
SHOWERS. LOWS IN THE UPPER 40S.
HIGHS AROUND 60. EAST WINDS 10 TO 15 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY WITH SHOWERS LIKELY. LOWS IN THE
LOWER 50S. NORTHEAST WINDS 5 TO 10 MPH.
MONDAY AND MONDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF
SHOWERS. WARMER. LOWS IN THE LOWER 50S. HIGHS IN THE LOWER 70S.
WEST WINDS AROUND 5 MPH.
TUESDAY THROUGH WEDNESDAY
PARTLY CLOUDY. LOWS IN THE MID 50S.
HIGHS IN THE UPPER 70S. NORTHWEST WINDS 5 TO 10 MPH.
RIZ005-212000-
BRISTOL RI-
INCLUDING THE CITY OF BRISTOL
409 AM EDT THU MAY 21 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS NONE NONE
CHANCE PRECIP (%) 30
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 66 (-22) 46 (-13) 66
RH % (24H TREND) 46 (-1) 93 (+6) 33
20FT WND AM(MPH) N 6 NE 7
20FT WND PM(MPH) LGT/VAR LGT/VAR E 7
PRECIP AMOUNT 0.04 0.00 0.00
PRECIP DURATION 1
PRECIP BEGIN 6 AM
PRECIP END 1 PM
MIXING HGT (FT-AGL) 3850 440 6390
TRANSPORT WND (KTS) N 6 SW 4 E 8
VENT RATE (KT-FT) 23100 1760 51120
MAX ADI EARLY 29 FAIR 18 GEN POOR 63 GOOD
MAX ADI LATE 29 FAIR 11 POOR 66 GOOD
MAX LVORI EARLY 2 5 1
MAX LVORI LATE 2 5 1
MIN VSBY EARLY 9 9 9
MIN VSBY LATE 9 9 9
SUNSHINE HOURS N/A N/A N/A
CWR 20 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. SOUTHEAST
WINDS 5 TO 10 MPH.
SATURDAY
CLOUDY. HIGHS IN THE LOWER 60S. EAST WINDS 5 TO
10 MPH.
SATURDAY NIGHT AND SUNDAY
SHOWERS. LOWS IN THE UPPER 40S.
HIGHS IN THE UPPER 50S. EAST WINDS 10 TO 15 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY WITH SHOWERS LIKELY. LOWS IN THE
LOWER 50S. NORTHEAST WINDS 10 TO 15 MPH.
MONDAY AND MONDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF
SHOWERS. LOWS IN THE LOWER 50S. HIGHS IN THE UPPER 60S. WEST
WINDS AROUND 5 MPH.
TUESDAY
PARTLY SUNNY. HIGHS IN THE MID 70S. NORTHWEST WINDS
5 TO 10 MPH.
TUESDAY NIGHT AND WEDNESDAY
PARTLY CLOUDY. LOWS IN THE MID
50S. HIGHS IN THE UPPER 70S. NORTHWEST WINDS 5 TO 10 MPH.
RIZ006-212000-
WASHINGTON RI-
INCLUDING THE CITIES OF NARRAGANSETT AND WESTERLY
409 AM EDT THU MAY 21 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS NONE NONE
CHANCE PRECIP (%) 30
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 66 (-20) 46 (-12) 68
RH % (24H TREND) 45 (+4) 96 (+6) 31
20FT WND AM(MPH) NE 5 NE 5
20FT WND PM(MPH) LGT/VAR LGT/VAR E 7
PRECIP AMOUNT 0.04 0.00 0.00
PRECIP DURATION 1
PRECIP BEGIN 6 AM
PRECIP END 3 PM
MIXING HGT (FT-AGL) 3360 410 5420
TRANSPORT WND (KTS) NE 6 NW 4 E 10
VENT RATE (KT-FT) 20160 1640 54200
MAX ADI EARLY 20 GEN POOR 12 POOR 62 GOOD
MAX ADI LATE 23 FAIR 11 POOR 64 GOOD
MAX LVORI EARLY 2 6 1
MAX LVORI LATE 2 6 1
MIN VSBY EARLY 9 8 9
MIN VSBY LATE 9 8 9
SUNSHINE HOURS N/A N/A N/A
CWR 20 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. EAST WINDS
5 TO 10 MPH.
SATURDAY
CLOUDY. HIGHS IN THE LOWER 60S. EAST WINDS 5 TO
10 MPH.
SATURDAY NIGHT AND SUNDAY
SHOWERS. LOWS IN THE UPPER 40S.
HIGHS IN THE LOWER 60S. EAST WINDS 10 TO 15 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY WITH SHOWERS LIKELY. LOWS IN THE
LOWER 50S. NORTHEAST WINDS 10 TO 15 MPH.
MONDAY AND MONDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF
SHOWERS. LOWS IN THE MID 50S. HIGHS AROUND 70. WEST WINDS AROUND
5 MPH.
TUESDAY
PARTLY SUNNY. HIGHS IN THE MID 70S. NORTHWEST WINDS
AROUND 5 MPH, BECOMING WEST AROUND 5 MPH IN THE AFTERNOON.
TUESDAY NIGHT AND WEDNESDAY
PARTLY CLOUDY. LOWS IN THE MID
50S. HIGHS IN THE UPPER 70S. WEST WINDS 5 TO 10 MPH.
RIZ007-212000-
NEWPORT RI-
INCLUDING THE CITY OF NEWPORT
409 AM EDT THU MAY 21 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS NONE NONE
CHANCE PRECIP (%) 30
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 66 (-16) 46 (-11) 66
RH % (24H TREND) 46 (-2) 93 (0) 32
20FT WND AM(MPH) NE 7 NE 7
20FT WND PM(MPH) E 5 LGT/VAR E 8
PRECIP AMOUNT 0.04 0.00 0.00
PRECIP DURATION 1
PRECIP BEGIN 6 AM
PRECIP END 2 PM
MIXING HGT (FT-AGL) 2990 470 4950
TRANSPORT WND (KTS) NE 7 S 4 NE 10
VENT RATE (KT-FT) 20930 1880 49500
MAX ADI EARLY 22 FAIR 13 GEN POOR 61 GOOD
MAX ADI LATE 22 FAIR 12 POOR 59 GEN GOOD
MAX LVORI EARLY 2 5 1
MAX LVORI LATE 2 5 1
MIN VSBY EARLY 9 9 9
MIN VSBY LATE 9 9 9
SUNSHINE HOURS N/A N/A N/A
CWR 20 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. EAST WINDS
5 TO 10 MPH.
SATURDAY
CLOUDY. HIGHS IN THE LOWER 60S. EAST WINDS 5 TO
10 MPH.
SATURDAY NIGHT AND SUNDAY
SHOWERS. LOWS AROUND 50. HIGHS IN
THE LOWER 60S. EAST WINDS 15 TO 20 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY WITH SHOWERS LIKELY. LOWS IN THE
LOWER 50S. EAST WINDS 10 TO 15 MPH.
MONDAY AND MONDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF
SHOWERS. LOWS IN THE LOWER 50S. HIGHS IN THE UPPER 60S. WEST
WINDS 5 TO 10 MPH.
TUESDAY
PARTLY SUNNY. HIGHS IN THE MID 70S. NORTHWEST WINDS
AROUND 5 MPH, BECOMING SOUTHWEST IN THE AFTERNOON.
TUESDAY NIGHT AND WEDNESDAY
PARTLY CLOUDY. LOWS IN THE MID
50S. HIGHS IN THE MID 70S. WEST WINDS 5 TO 10 MPH.
RIZ008-212000-
BLOCK ISLAND RI-
INCLUDING THE CITY OF NEW SHOREHAM
409 AM EDT THU MAY 21 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE SHOWERS NONE NONE
CHANCE PRECIP (%) 40 10
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 67 (-4) 50 (-5) 64
RH % (24H TREND) 54 (-12) 93 (-7) 45
20FT WND AM(MPH) NE 8 NE 9
20FT WND PM(MPH) E 7 LGT/VAR E 9
PRECIP AMOUNT 0.04 0.00 0.00
PRECIP DURATION 2
PRECIP BEGIN 6 AM
PRECIP END 5 PM
MIXING HGT (FT-AGL) 1080 830 2090
TRANSPORT WND (KTS) SE 7 NE 4 E 15
VENT RATE (KT-FT) 7560 3320 31350
MAX ADI EARLY 17 GEN POOR 12 POOR 34 FAIR
MAX ADI LATE 12 POOR 24 FAIR 28 FAIR
MAX LVORI EARLY 3 5 2
MAX LVORI LATE 3 5 2
MIN VSBY EARLY 9 8 9
MIN VSBY LATE 9 8 9
SUNSHINE HOURS N/A N/A N/A
CWR 20 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 50S. EAST WINDS
5 TO 10 MPH.
SATURDAY
CLOUDY WITH A CHANCE OF SHOWERS. HIGHS IN THE LOWER
60S. EAST WINDS 5 TO 10 MPH.
SATURDAY NIGHT THROUGH SUNDAY NIGHT
SHOWERS. LOWS IN THE LOWER
50S. HIGHS IN THE MID 60S. NORTHEAST WINDS 15 TO 20 MPH.
MONDAY AND MONDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF
SHOWERS. LOWS IN THE MID 50S. HIGHS IN THE MID 60S. WEST WINDS
AROUND 5 MPH.
TUESDAY
PARTLY SUNNY. HIGHS IN THE UPPER 60S. WEST WINDS
AROUND 5 MPH.
TUESDAY NIGHT AND WEDNESDAY
PARTLY CLOUDY. LOWS IN THE MID
50S. HIGHS IN THE UPPER 60S. SOUTHWEST WINDS 5 TO 10 MPH.
MAZ017-212000-
NORTHERN BRISTOL MA-
INCLUDING THE CITY OF TAUNTON
409 AM EDT THU MAY 21 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY PCLDY MCLEAR
PRECIP TYPE SHOWERS NONE NONE
CHANCE PRECIP (%) 20
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 66 (-27) 43 (-15) 66
RH % (24H TREND) 40 (-1) 96 (+15) 27
20FT WND AM(MPH) LGT/VAR LGT/VAR
20FT WND PM(MPH) LGT/VAR LGT/VAR E 5
PRECIP AMOUNT 0.03 0.00 0.00
PRECIP DURATION 1
PRECIP BEGIN 6 AM
PRECIP END 11 AM
MIXING HGT (FT-AGL) 4610 430 6760
TRANSPORT WND (KTS) NW 6 W 4 NE 8
VENT RATE (KT-FT) 27660 1720 54080
MAX ADI EARLY 39 FAIR 21 FAIR 64 GOOD
MAX ADI LATE 38 FAIR 11 POOR 68 GOOD
MAX LVORI EARLY 2 4 1
MAX LVORI LATE 2 4 1
MIN VSBY EARLY 9 9 9
MIN VSBY LATE 9 9 9
SUNSHINE HOURS N/A N/A N/A
CWR 10 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 40S. SOUTHEAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT AND VARIABLE.
SATURDAY
MOSTLY CLOUDY. HIGHS IN THE MID 60S. EAST WINDS
AROUND 5 MPH.
SATURDAY NIGHT AND SUNDAY
SHOWERS. LOWS IN THE MID 40S. HIGHS
IN THE UPPER 50S. EAST WINDS 5 TO 10 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY WITH SHOWERS LIKELY. LOWS IN THE
UPPER 40S. EAST WINDS 5 TO 10 MPH.
MONDAY AND MONDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF
SHOWERS. LOWS IN THE LOWER 50S. HIGHS IN THE UPPER 60S. WEST
WINDS AROUND 5 MPH.
TUESDAY THROUGH WEDNESDAY
PARTLY CLOUDY. LOWS IN THE MID 50S.
HIGHS IN THE UPPER 70S. NORTHWEST WINDS AROUND 5 MPH.
MAZ018-212000-
WESTERN PLYMOUTH MA-
INCLUDING THE CITY OF BROCKTON
409 AM EDT THU MAY 21 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS NONE NONE
CHANCE PRECIP (%) 20
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 64 (-28) 43 (-15) 63
RH % (24H TREND) 41 (0) 96 (+18) 30
20FT WND AM(MPH) LGT/VAR NE 5
20FT WND PM(MPH) LGT/VAR LGT/VAR NE 5
PRECIP AMOUNT 0.02 0.00 0.00
PRECIP DURATION 1
PRECIP BEGIN 6 AM
PRECIP END 11 AM
MIXING HGT (FT-AGL) 3670 390 5810
TRANSPORT WND (KTS) N 6 S 5 NE 9
VENT RATE (KT-FT) 22020 1950 52290
MAX ADI EARLY 41 GEN GOOD 17 GEN POOR 62 GOOD
MAX ADI LATE 28 FAIR 11 POOR 62 GOOD
MAX LVORI EARLY 2 4 2
MAX LVORI LATE 2 4 2
MIN VSBY EARLY 9 9 9
MIN VSBY LATE 9 9 9
SUNSHINE HOURS N/A N/A N/A
CWR 10 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 40S. SOUTHEAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT AND VARIABLE.
SATURDAY
CLOUDY. HIGHS IN THE LOWER 60S. EAST WINDS AROUND
5 MPH.
SATURDAY NIGHT AND SUNDAY
SHOWERS. LOWS IN THE MID 40S. HIGHS
IN THE UPPER 50S. EAST WINDS 5 TO 10 MPH.
SUNDAY NIGHT
SHOWERS. LOWS IN THE UPPER 40S. EAST WINDS 5 TO
10 MPH.
MONDAY
CLOUDY WITH A CHANCE OF SHOWERS. HIGHS IN THE UPPER
60S. NORTH WINDS AROUND 5 MPH, BECOMING NORTHWEST IN THE
AFTERNOON.
MONDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE LOWER 50S. SOUTHWEST WINDS AROUND 5 MPH.
TUESDAY
PARTLY SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS
AROUND 5 MPH.
TUESDAY NIGHT AND WEDNESDAY
PARTLY CLOUDY. LOWS IN THE MID
50S. HIGHS IN THE UPPER 70S. NORTHWEST WINDS AROUND 5 MPH.
MAZ019-212000-
EASTERN PLYMOUTH MA-
INCLUDING THE CITY OF PLYMOUTH
409 AM EDT THU MAY 21 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS NONE NONE
CHANCE PRECIP (%) 20
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 63 (-24) 44 (-13) 63
RH % (24H TREND) 44 (+3) 93 (+6) 33
20FT WND AM(MPH) NE 5 NE 6
20FT WND PM(MPH) LGT/VAR LGT/VAR E 6
PRECIP AMOUNT 0.02 0.00 0.00
PRECIP DURATION 1
PRECIP BEGIN 6 AM
PRECIP END 11 AM
MIXING HGT (FT-AGL) 2470 390 3690
TRANSPORT WND (KTS) NE 7 SE 6 NE 11
VENT RATE (KT-FT) 17290 2340 40590
MAX ADI EARLY 25 FAIR 10 POOR 49 GEN GOOD
MAX ADI LATE 21 FAIR 15 GEN POOR 43 GEN GOOD
MAX LVORI EARLY 2 4 2
MAX LVORI LATE 2 4 2
MIN VSBY EARLY 9 9 9
MIN VSBY LATE 9 9 9
SUNSHINE HOURS N/A N/A N/A
CWR 10 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. SOUTHEAST
WINDS AROUND 5 MPH, BECOMING SOUTHWEST AFTER MIDNIGHT.
SATURDAY
MOSTLY CLOUDY. HIGHS IN THE LOWER 60S. EAST WINDS
5 TO 10 MPH.
SATURDAY NIGHT AND SUNDAY
SHOWERS. LOWS IN THE UPPER 40S.
HIGHS IN THE UPPER 50S. EAST WINDS 10 TO 15 MPH.
SUNDAY NIGHT
SHOWERS. LOWS IN THE LOWER 50S. EAST WINDS 10 TO
15 MPH.
MONDAY AND MONDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF
SHOWERS. LOWS IN THE LOWER 50S. HIGHS IN THE UPPER 60S. WEST
WINDS 5 TO 10 MPH.
TUESDAY THROUGH WEDNESDAY
PARTLY CLOUDY. LOWS IN THE MID 50S.
HIGHS IN THE MID 70S. NORTH WINDS 5 TO 10 MPH.
MAZ020-212000-
SOUTHERN BRISTOL MA-
INCLUDING THE CITIES OF FALL RIVER AND NEW BEDFORD
409 AM EDT THU MAY 21 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS NONE NONE
CHANCE PRECIP (%) 30
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 67 (-19) 44 (-13) 67
RH % (24H TREND) 43 (-1) 96 (+9) 29
20FT WND AM(MPH) NE 6 NE 6
20FT WND PM(MPH) E 5 LGT/VAR E 7
PRECIP AMOUNT 0.04 0.00 0.00
PRECIP DURATION 1
PRECIP BEGIN 6 AM
PRECIP END 2 PM
MIXING HGT (FT-AGL) 3780 420 6380
TRANSPORT WND (KTS) NE 6 W 4 NE 9
VENT RATE (KT-FT) 22680 1680 57420
MAX ADI EARLY 26 FAIR 17 GEN POOR 66 GOOD
MAX ADI LATE 29 FAIR 11 POOR 66 GOOD
MAX LVORI EARLY 2 5 1
MAX LVORI LATE 2 5 1
MIN VSBY EARLY 9 9 9
MIN VSBY LATE 9 9 9
SUNSHINE HOURS N/A N/A N/A
CWR 10 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. EAST WINDS
5 TO 10 MPH.
SATURDAY
MOSTLY CLOUDY. HIGHS IN THE MID 60S. EAST WINDS 5 TO
10 MPH.
SATURDAY NIGHT AND SUNDAY
SHOWERS. LOWS IN THE UPPER 40S.
HIGHS IN THE LOWER 60S. EAST WINDS 15 TO 20 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY WITH SHOWERS LIKELY. LOWS IN THE
LOWER 50S. EAST WINDS 10 TO 15 MPH.
MONDAY AND MONDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF
SHOWERS. LOWS IN THE LOWER 50S. HIGHS AROUND 70. WEST WINDS 5 TO
10 MPH.
TUESDAY
PARTLY SUNNY. HIGHS IN THE MID 70S. WEST WINDS 5 TO
10 MPH.
TUESDAY NIGHT AND WEDNESDAY
PARTLY CLOUDY. LOWS IN THE MID
50S. HIGHS IN THE UPPER 70S. WEST WINDS 5 TO 10 MPH.
MAZ021-212000-
SOUTHERN PLYMOUTH MA-
INCLUDING THE CITY OF MATTAPOISETT
409 AM EDT THU MAY 21 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS NONE NONE
CHANCE PRECIP (%) 20
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 66 (-19) 44 (-13) 65
RH % (24H TREND) 48 (+4) 96 (+9) 33
20FT WND AM(MPH) NE 5 NE 5
20FT WND PM(MPH) LGT/VAR LGT/VAR NE 6
PRECIP AMOUNT 0.04 0.00 0.00
PRECIP DURATION 1
PRECIP BEGIN 6 AM
PRECIP END 2 PM
MIXING HGT (FT-AGL) 3050 390 5480
TRANSPORT WND (KTS) NE 7 W 4 NE 10
VENT RATE (KT-FT) 21350 1560 54800
MAX ADI EARLY 35 FAIR 15 GEN POOR 66 GOOD
MAX ADI LATE 30 FAIR 11 POOR 66 GOOD
MAX LVORI EARLY 2 5 1
MAX LVORI LATE 2 5 1
MIN VSBY EARLY 9 9 9
MIN VSBY LATE 9 9 9
SUNSHINE HOURS N/A N/A N/A
CWR 10 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. EAST WINDS
AROUND 5 MPH.
SATURDAY
MOSTLY CLOUDY. HIGHS IN THE MID 60S. EAST WINDS 5 TO
10 MPH.
SATURDAY NIGHT AND SUNDAY
SHOWERS. LOWS IN THE UPPER 40S.
HIGHS IN THE LOWER 60S. EAST WINDS 10 TO 15 MPH.
SUNDAY NIGHT
SHOWERS. LOWS IN THE LOWER 50S. EAST WINDS 10 TO
15 MPH.
MONDAY AND MONDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF
SHOWERS. LOWS IN THE LOWER 50S. HIGHS IN THE UPPER 60S. WEST
WINDS AROUND 5 MPH.
TUESDAY
PARTLY SUNNY. HIGHS IN THE MID 70S. WEST WINDS AROUND
5 MPH.
TUESDAY NIGHT AND WEDNESDAY
PARTLY CLOUDY. LOWS IN THE MID
50S. HIGHS IN THE MID 70S. NORTHWEST WINDS 5 TO 10 MPH.
MAZ022-212000-
BARNSTABLE MA-
INCLUDING THE CITIES OF CHATHAM, FALMOUTH, AND PROVINCETOWN
409 AM EDT THU MAY 21 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS NONE NONE
CHANCE PRECIP (%) 20
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 66 (-14) 46 (-10) 64
RH % (24H TREND) 48 (-6) 96 (+3) 34
20FT WND AM(MPH) NE 6 NE 6
20FT WND PM(MPH) NE 5 LGT/VAR NE 6
PRECIP AMOUNT 0.03 0.00 0.00
PRECIP DURATION 1
PRECIP BEGIN 6 AM
PRECIP END 2 PM
MIXING HGT (FT-AGL) 2050 380 3870
TRANSPORT WND (KTS) NE 9 NW 4 NE 10
VENT RATE (KT-FT) 18450 1520 38700
MAX ADI EARLY 24 FAIR 11 POOR 53 GEN GOOD
MAX ADI LATE 22 FAIR 12 POOR 52 GEN GOOD
MAX LVORI EARLY 2 4 2
MAX LVORI LATE 2 4 2
MIN VSBY EARLY 9 9 9
MIN VSBY LATE 9 9 9
SUNSHINE HOURS N/A N/A N/A
CWR 10 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 50S. EAST WINDS
AROUND 5 MPH.
SATURDAY
MOSTLY CLOUDY. HIGHS IN THE MID 60S. EAST WINDS 5 TO
10 MPH.
SATURDAY NIGHT
CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN THE
LOWER 50S. EAST WINDS 10 TO 15 MPH.
SUNDAY AND SUNDAY NIGHT
SHOWERS. LOWS IN THE LOWER 50S. HIGHS
IN THE MID 60S. EAST WINDS 10 TO 15 MPH.
MONDAY AND MONDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF
SHOWERS. LOWS IN THE MID 50S. HIGHS IN THE UPPER 60S. WEST WINDS
5 TO 10 MPH.
TUESDAY
PARTLY SUNNY. HIGHS IN THE LOWER 70S. WEST WINDS
AROUND 5 MPH.
TUESDAY NIGHT AND WEDNESDAY
PARTLY CLOUDY. LOWS IN THE MID
50S. HIGHS IN THE LOWER 70S. NORTHWEST WINDS 5 TO 10 MPH.
MAZ023-212000-
DUKES MA-
INCLUDING THE CITY OF VINEYARD HAVEN
409 AM EDT THU MAY 21 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS NONE NONE
CHANCE PRECIP (%) 30 10
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 68 (-6) 45 (-11) 66
RH % (24H TREND) 46 (-11) 93 (0) 37
20FT WND AM(MPH) NE 9 NE 9
20FT WND PM(MPH) NE 7 LGT/VAR E 8
PRECIP AMOUNT 0.03 0.00 0.00
PRECIP DURATION 2
PRECIP BEGIN 6 AM
PRECIP END 4 PM
MIXING HGT (FT-AGL) 1680 680 3510
TRANSPORT WND (KTS) NE 12 N 6 NE 13
VENT RATE (KT-FT) 20160 4080 45630
MAX ADI EARLY 22 FAIR 16 GEN POOR 41 GEN GOOD
MAX ADI LATE 18 GEN POOR 16 GEN POOR 43 GEN GOOD
MAX LVORI EARLY 2 4 1
MAX LVORI LATE 2 4 1
MIN VSBY EARLY 9 8 9
MIN VSBY LATE 9 8 9
SUNSHINE HOURS N/A N/A N/A
CWR 10 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 50S. EAST WINDS
5 TO 10 MPH.
SATURDAY
MOSTLY CLOUDY. HIGHS IN THE MID 60S. EAST WINDS 5 TO
10 MPH.
SATURDAY NIGHT THROUGH SUNDAY NIGHT
SHOWERS. LOWS IN THE LOWER
50S. HIGHS IN THE MID 60S. EAST WINDS 15 TO 20 MPH.
MONDAY AND MONDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF
SHOWERS. LOWS IN THE MID 50S. HIGHS IN THE UPPER 60S. WEST WINDS
5 TO 10 MPH.
TUESDAY
PARTLY SUNNY. HIGHS AROUND 70. WEST WINDS 5 TO 10 MPH.
TUESDAY NIGHT AND WEDNESDAY
PARTLY CLOUDY. LOWS IN THE MID
50S. HIGHS IN THE LOWER 70S. SOUTHWEST WINDS 5 TO 10 MPH.
MAZ024-212000-
NANTUCKET MA-
INCLUDING THE CITY OF NANTUCKET
409 AM EDT THU MAY 21 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE SHOWERS NONE NONE
CHANCE PRECIP (%) 30 10
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 65 (-5) 46 (-10) 62
RH % (24H TREND) 56 (-14) 89 (-4) 47
20FT WND AM(MPH) NE 9 NE 9
20FT WND PM(MPH) NE 9 LGT/VAR NE 9
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT (FT-AGL) 1460 660 2000
TRANSPORT WND (KTS) NE 15 N 3 NE 16
VENT RATE (KT-FT) 21900 1980 32000
MAX ADI EARLY 24 FAIR 16 GEN POOR 37 FAIR
MAX ADI LATE 26 FAIR 22 FAIR 33 FAIR
MAX LVORI EARLY 3 4 2
MAX LVORI LATE 3 4 2
MIN VSBY EARLY 9 8 9
MIN VSBY LATE 9 8 9
SUNSHINE HOURS N/A N/A N/A
CWR 10 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 50S. EAST WINDS
5 TO 10 MPH.
SATURDAY
MOSTLY CLOUDY. HIGHS IN THE LOWER 60S. EAST WINDS
5 TO 10 MPH.
SATURDAY NIGHT THROUGH SUNDAY NIGHT
SHOWERS. LOWS IN THE LOWER
50S. HIGHS IN THE MID 60S. SOUTHEAST WINDS 15 TO 20 MPH.
MONDAY THROUGH TUESDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS.
LOWS IN THE MID 50S. HIGHS IN THE MID 60S. SOUTHWEST WINDS 5 TO
10 MPH.
TUESDAY NIGHT AND WEDNESDAY
PARTLY CLOUDY. LOWS IN THE MID
50S. HIGHS IN THE UPPER 60S. WEST WINDS 5 TO 10 MPH.
OUTLOOK 8 TO 14 DAYS
TEMPERATURES ABOVE NORMAL. PRECIPITATION BELOW NORMAL.
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