657
FNUS51 KBOX 210809
FWFBOX
FIRE WEATHER PLANNING FORECAST FOR SOUTHERN NEW ENGLAND
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
409 AM EDT TUE APR 21 2026
DISCUSSION
AFTER A CHILLY START, FULL SUNSHINE WILL TAP INTO VERY DRY AIR
TODAY AND BRING RELATIVE HUMIDITIES AWAY FROM THE COASTLINES TO
AROUND 20 TO 25 PERCENT. HIGH TEMPERATURES IN THE 40S TO LOWER
50S, TO GO ALONG WITH WINDS BECOMING SOUTHERLY AROUND 5-10 MPH.
INCREASING CLOUDINESS TONIGHT BRINGS OVERCAST CONDITIONS FOR
WEDNESDAY, WITH PERIODS OF RAIN SHOWERS, ESPECIALLY IN CT AND RI.
MINIMUM RELATIVE HUMIDITIES ON WEDNESDAY TO REMAIN ABOVE
65 PERCENT.
OUTLOOK...THURSDAY THROUGH SATURDAY
AN UPPER LEVEL LOW TO OUR NORTHEAST WILL MAINTAIN A COOLER AND
UNSETTLED WEATHER PATTERN FOR LATE IN THE WEEK INTO THE WEEKEND.
BEST CHANCES FOR SCATTERED DIURNAL SHOWERS ON THURSDAY IS ACROSS
EASTERN MA AND RI. OTHERWISE, THE PERIOD IS GENERALLY DRY WITH
TEMPERATURES NEAR TO SLIGHTLY COOLER THAN NORMAL.
MAZ015-212000-
SUFFOLK MA-
INCLUDING THE CITY OF BOSTON
409 AM EDT TUE APR 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLEAR PCLDY MCLDY
PRECIP TYPE NONE NONE RAIN
CHANCE PRECIP (%) 10 60
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 49 (-2) 35 (+2) 46
RH % (24H TREND) 23 (-14) 82 (+3) 65
20FT WND AM(MPH) LGT/VAR S 7
20FT WND PM(MPH) SE 6 S 8 S 7
PRECIP AMOUNT 0.00 0.00 0.04
PRECIP DURATION 4
PRECIP BEGIN 6 AM
PRECIP END 6 PM
MIXING HGT (FT-AGL) 6930 940 2900
TRANSPORT WND (KTS) W 6 S 15 S 14
VENT RATE (KT-FT) 41580 14100 40600
MAX ADI EARLY 39 FAIR 42 GEN GOOD 41 GEN GOOD
MAX ADI LATE 48 GEN GOOD 12 POOR 42 GEN GOOD
MAX LVORI EARLY 1 3 3
MAX LVORI LATE 1 3 3
MIN VSBY EARLY 9 7 7
MIN VSBY LATE 10 7 5 FOG
SUNSHINE HOURS N/A N/A N/A
CWR 0 0 10
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
WEDNESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN. LOWS IN
THE LOWER 40S. SOUTH WINDS 5 TO 10 MPH.
THURSDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
MID 50S. NORTHWEST WINDS 5 TO 10 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 40. NORTHWEST WINDS
5 TO 10 MPH.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE MID 50S. NORTHWEST WINDS
AROUND 5 MPH, BECOMING NORTHEAST IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S. SOUTHEAST
WINDS AROUND 5 MPH, BECOMING NORTHWEST AFTER MIDNIGHT.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE MID 50S. NORTHEAST WINDS
AROUND 5 MPH.
SATURDAY NIGHT THROUGH MONDAY
MOSTLY CLOUDY. LOWS IN THE LOWER
40S. HIGHS IN THE MID 50S. EAST WINDS 5 TO 10 MPH.
MAZ016-212000-
EASTERN NORFOLK MA-
INCLUDING THE CITY OF QUINCY
409 AM EDT TUE APR 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLEAR PCLDY MCLDY
PRECIP TYPE NONE NONE RAIN
CHANCE PRECIP (%) 10 70
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 48 (-3) 35 (+2) 47
RH % (24H TREND) 24 (-16) 85 (+6) 65
20FT WND AM(MPH) LGT/VAR S 8
20FT WND PM(MPH) SE 5 S 8 S 7
PRECIP AMOUNT 0.00 0.00 0.05
PRECIP DURATION 4
PRECIP BEGIN 6 AM
PRECIP END 6 PM
MIXING HGT (FT-AGL) 6820 780 2960
TRANSPORT WND (KTS) W 6 S 13 S 14
VENT RATE (KT-FT) 40920 10140 41440
MAX ADI EARLY 40 FAIR 51 GEN GOOD 40 FAIR
MAX ADI LATE 51 GEN GOOD 11 POOR 41 GEN GOOD
MAX LVORI EARLY 1 4 3
MAX LVORI LATE 1 4 3
MIN VSBY EARLY 9 7 7
MIN VSBY LATE 10 7 5 FOG
SUNSHINE HOURS N/A N/A N/A
CWR 0 0 10
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
WEDNESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN. LOWS
AROUND 40. SOUTH WINDS AROUND 5 MPH.
THURSDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
MID 50S. NORTHWEST WINDS 5 TO 10 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 40. NORTHWEST WINDS
5 TO 10 MPH.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE MID 50S. NORTH WINDS AROUND
5 MPH, BECOMING NORTHEAST IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S. SOUTHEAST
WINDS AROUND 5 MPH, BECOMING NORTHWEST AFTER MIDNIGHT.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE MID 50S. NORTHEAST WINDS
AROUND 5 MPH.
SATURDAY NIGHT THROUGH MONDAY
MOSTLY CLOUDY. LOWS AROUND 40.
HIGHS IN THE MID 50S. EAST WINDS 5 TO 10 MPH.
MAZ013-212000-
WESTERN NORFOLK MA-
INCLUDING THE CITIES OF FOXBOROUGH AND NORWOOD
409 AM EDT TUE APR 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLEAR PCLDY MCLDY
PRECIP TYPE NONE NONE RAIN
CHANCE PRECIP (%) 10 70
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 50 (-1) 35 (+6) 46
RH % (24H TREND) 21 (-14) 85 (+7) 63
20FT WND AM(MPH) LGT/VAR S 6
20FT WND PM(MPH) LGT/VAR S 6 S 6
PRECIP AMOUNT 0.00 0.00 0.10
PRECIP DURATION 6
PRECIP BEGIN 6 AM
PRECIP END 6 PM
MIXING HGT (FT-AGL) 7350 650 2780
TRANSPORT WND (KTS) W 6 S 12 S 14
VENT RATE (KT-FT) 44100 7800 38920
MAX ADI EARLY 44 GEN GOOD 52 GEN GOOD 35 FAIR
MAX ADI LATE 63 GOOD 9 POOR 37 FAIR
MAX LVORI EARLY 1 4 3
MAX LVORI LATE 1 4 3
MIN VSBY EARLY 9 7 5 FOG
MIN VSBY LATE 10 7 5 FOG
SUNSHINE HOURS N/A N/A N/A
CWR 0 0 10
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
WEDNESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN. LOWS IN
THE UPPER 30S. SOUTH WINDS AROUND 5 MPH.
THURSDAY
PARTLY SUNNY. HIGHS IN THE UPPER 50S. NORTHWEST WINDS
5 TO 10 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S. NORTHWEST
WINDS AROUND 5 MPH.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 50S. NORTH WINDS
AROUND 5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 30S. EAST WINDS
AROUND 5 MPH, BECOMING NORTHWEST AFTER MIDNIGHT.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 50S. NORTHEAST WINDS
AROUND 5 MPH.
SATURDAY NIGHT THROUGH MONDAY
MOSTLY CLOUDY. LOWS IN THE UPPER
30S. HIGHS IN THE UPPER 50S. NORTHEAST WINDS AROUND 5 MPH.
MAZ014-212000-
SOUTHEAST MIDDLESEX MA-
INCLUDING THE CITY OF CAMBRIDGE
409 AM EDT TUE APR 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLEAR PCLDY MCLDY
PRECIP TYPE NONE NONE RAIN
CHANCE PRECIP (%) 10 60
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 49 (-2) 34 (+4) 46
RH % (24H TREND) 23 (-12) 85 (+10) 70
20FT WND AM(MPH) LGT/VAR S 6
20FT WND PM(MPH) SE 5 S 6 S 7
PRECIP AMOUNT 0.00 0.00 0.06
PRECIP DURATION 4
PRECIP BEGIN 6 AM
PRECIP END 6 PM
MIXING HGT (FT-AGL) 7160 620 2790
TRANSPORT WND (KTS) W 6 S 14 S 13
VENT RATE (KT-FT) 42960 8680 36270
MAX ADI EARLY 45 GEN GOOD 42 GEN GOOD 1 VERY POOR
MAX ADI LATE 58 GEN GOOD 10 POOR 1 VERY POOR
MAX LVORI EARLY 1 3 4
MAX LVORI LATE 1 3 4
MIN VSBY EARLY 9 7 5 FOG
MIN VSBY LATE 10 7 5 FOG
SUNSHINE HOURS N/A N/A N/A
CWR 0 0 10
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
WEDNESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN. LOWS
AROUND 40. SOUTH WINDS AROUND 5 MPH.
THURSDAY
PARTLY SUNNY. HIGHS IN THE UPPER 50S. NORTHWEST WINDS
5 TO 10 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 40. NORTHWEST WINDS
AROUND 5 MPH.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE MID 50S. NORTH WINDS AROUND
5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S. EAST WINDS
AROUND 5 MPH, BECOMING NORTHWEST AFTER MIDNIGHT.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE MID 50S. NORTHEAST WINDS
AROUND 5 MPH.
SATURDAY NIGHT THROUGH MONDAY
MOSTLY CLOUDY. LOWS AROUND 40.
HIGHS IN THE UPPER 50S. EAST WINDS AROUND 5 MPH.
MAZ007-212000-
EASTERN ESSEX MA-
INCLUDING THE CITY OF GLOUCESTER
409 AM EDT TUE APR 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLEAR PCLDY MCLDY
PRECIP TYPE NONE NONE RAIN
CHANCE PRECIP (%) 10 40
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 46 (-4) 35 (+4) 46
RH % (24H TREND) 25 (-14) 85 (+6) 68
20FT WND AM(MPH) LGT/VAR S 8
20FT WND PM(MPH) SE 6 S 8 S 8
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT (FT-AGL) 6770 650 2760
TRANSPORT WND (KTS) W 8 S 16 S 14
VENT RATE (KT-FT) 54160 10400 38640
MAX ADI EARLY 41 GEN GOOD 35 FAIR 1 VERY POOR
MAX ADI LATE 54 GEN GOOD 12 POOR 1 VERY POOR
MAX LVORI EARLY 1 3 4
MAX LVORI LATE 1 3 4
MIN VSBY EARLY 9 7 7
MIN VSBY LATE 10 7 7
SUNSHINE HOURS N/A N/A N/A
CWR 0 0 10
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
WEDNESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN. LOWS IN
THE UPPER 30S. SOUTH WINDS 5 TO 10 MPH.
THURSDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
LOWER 50S. WEST WINDS 5 TO 10 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S. NORTHWEST
WINDS 5 TO 10 MPH.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 50S. NORTHWEST WINDS
5 TO 10 MPH, BECOMING EAST IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S. SOUTHEAST
WINDS AROUND 5 MPH, BECOMING NORTH AFTER MIDNIGHT.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 50S. NORTHEAST WINDS
5 TO 10 MPH.
SATURDAY NIGHT THROUGH MONDAY
MOSTLY CLOUDY. LOWS AROUND 40.
HIGHS IN THE MID 50S. EAST WINDS 5 TO 10 MPH.
MAZ006-212000-
WESTERN ESSEX MA-
INCLUDING THE CITY OF LAWRENCE
409 AM EDT TUE APR 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLEAR PCLDY MCLDY
PRECIP TYPE NONE NONE RAIN
CHANCE PRECIP (%) 10 40
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 48 (-3) 34 (+5) 46
RH % (24H TREND) 21 (-16) 85 (+3) 68
20FT WND AM(MPH) LGT/VAR S 5
20FT WND PM(MPH) LGT/VAR S 5 S 5
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT (FT-AGL) 7410 580 2680
TRANSPORT WND (KTS) W 7 S 12 S 11
VENT RATE (KT-FT) 51870 6960 29480
MAX ADI EARLY 45 GEN GOOD 48 GEN GOOD 1 VERY POOR
MAX ADI LATE 68 GOOD 9 POOR 1 VERY POOR
MAX LVORI EARLY 1 3 4
MAX LVORI LATE 1 3 4
MIN VSBY EARLY 9 7 7
MIN VSBY LATE 10 7 7
SUNSHINE HOURS N/A N/A N/A
CWR 0 0 10
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
WEDNESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN. LOWS IN
THE UPPER 30S. SOUTH WINDS AROUND 5 MPH.
THURSDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
MID 50S. NORTHWEST WINDS 5 TO 10 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S. NORTHWEST
WINDS AROUND 5 MPH.
FRIDAY AND FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 30S.
HIGHS IN THE MID 50S. NORTH WINDS AROUND 5 MPH.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE MID 50S. NORTHEAST WINDS
AROUND 5 MPH.
SATURDAY NIGHT THROUGH MONDAY
MOSTLY CLOUDY. LOWS IN THE UPPER
30S. HIGHS IN THE UPPER 50S. EAST WINDS AROUND 5 MPH.
MAZ005-212000-
CENTRAL MIDDLESEX MA-
INCLUDING THE CITIES OF FRAMINGHAM AND LOWELL
409 AM EDT TUE APR 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLEAR PCLDY MCLDY
PRECIP TYPE NONE NONE RAIN
CHANCE PRECIP (%) 10 60
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 50 (-1) 34 (+6) 46
RH % (24H TREND) 18 (-16) 89 (+7) 68
20FT WND AM(MPH) LGT/VAR S 5
20FT WND PM(MPH) LGT/VAR S 5 S 5
PRECIP AMOUNT 0.00 0.00 0.08
PRECIP DURATION 6
PRECIP BEGIN 6 AM
PRECIP END 6 PM
MIXING HGT (FT-AGL) 7510 630 2690
TRANSPORT WND (KTS) SW 8 S 12 S 12
VENT RATE (KT-FT) 60080 7560 32280
MAX ADI EARLY 45 GEN GOOD 54 GEN GOOD 3 VERY POOR
MAX ADI LATE 67 GOOD 10 POOR 1 VERY POOR
MAX LVORI EARLY 1 4 4
MAX LVORI LATE 1 4 4
MIN VSBY EARLY 9 7 5 FOG
MIN VSBY LATE 10 7 5 FOG
SUNSHINE HOURS N/A N/A N/A
CWR 0 0 10
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
WEDNESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN. LOWS IN
THE UPPER 30S. SOUTH WINDS AROUND 5 MPH.
THURSDAY
PARTLY SUNNY. HIGHS IN THE UPPER 50S. NORTHWEST WINDS
5 TO 10 MPH.
THURSDAY NIGHT THROUGH FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE
UPPER 30S. HIGHS IN THE UPPER 50S. NORTH WINDS 5 TO 10 MPH.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 50S. NORTHEAST WINDS
AROUND 5 MPH.
SATURDAY NIGHT THROUGH MONDAY
MOSTLY CLOUDY. LOWS IN THE UPPER
30S. HIGHS AROUND 60. EAST WINDS AROUND 5 MPH.
MAZ012-212000-
SOUTHERN WORCESTER MA-
INCLUDING THE CITIES OF MILFORD AND WORCESTER
409 AM EDT TUE APR 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLEAR PCLDY MCLDY
PRECIP TYPE NONE NONE RAIN
CHANCE PRECIP (%) 20 70
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 50 (+1) 34 (+5) 45
RH % (24H TREND) 21 (-14) 89 (+7) 70
20FT WND AM(MPH) LGT/VAR S 6
20FT WND PM(MPH) LGT/VAR S 5 S 5
PRECIP AMOUNT 0.00 0.00 0.10
PRECIP DURATION 6
PRECIP BEGIN 6 AM
PRECIP END 6 PM
MIXING HGT (FT-AGL) 7140 640 2530
TRANSPORT WND (KTS) W 7 S 12 S 10
VENT RATE (KT-FT) 49980 7680 25300
MAX ADI EARLY 43 GEN GOOD 55 GEN GOOD 32 FAIR
MAX ADI LATE 63 GOOD 9 POOR 32 FAIR
MAX LVORI EARLY 1 4 4
MAX LVORI LATE 1 4 4
MIN VSBY EARLY 9 7 5 FOG
MIN VSBY LATE 10 7 5 FOG
SUNSHINE HOURS N/A N/A N/A
CWR 0 0 10
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
WEDNESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN. LOWS IN
THE UPPER 30S. SOUTHEAST WINDS AROUND 5 MPH, BECOMING SOUTHWEST
AFTER MIDNIGHT.
THURSDAY
PARTLY SUNNY. HIGHS IN THE UPPER 50S. NORTHWEST WINDS
5 TO 10 MPH.
THURSDAY NIGHT THROUGH FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE
UPPER 30S. HIGHS IN THE UPPER 50S. NORTHEAST WINDS 5 TO 10 MPH.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 50S. EAST WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE UPPER 30S. SOUTHEAST WINDS AROUND 5 MPH, BECOMING NORTHEAST
AFTER MIDNIGHT.
SUNDAY THROUGH MONDAY
MOSTLY CLOUDY. LOWS IN THE UPPER 30S.
HIGHS AROUND 60. EAST WINDS AROUND 5 MPH.
MAZ004-212000-
NORTHERN WORCESTER MA-
INCLUDING THE CITIES OF BARRE AND FITCHBURG
409 AM EDT TUE APR 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLEAR PCLDY MCLDY
PRECIP TYPE NONE NONE RAIN
CHANCE PRECIP (%) 20 80
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 49 (+2) 32 (+6) 44
RH % (24H TREND) 21 (-13) 92 (+4) 68
20FT WND AM(MPH) LGT/VAR S 6
20FT WND PM(MPH) LGT/VAR S 5 S 5
PRECIP AMOUNT 0.00 0.00 0.10
PRECIP DURATION 7
PRECIP BEGIN 6 AM
PRECIP END 6 PM
MIXING HGT (FT-AGL) 7000 460 2510
TRANSPORT WND (KTS) W 8 S 8 S 10
VENT RATE (KT-FT) 56000 3680 25100
MAX ADI EARLY 44 GEN GOOD 61 GOOD 3 VERY POOR
MAX ADI LATE 68 GOOD 9 POOR 1 VERY POOR
MAX LVORI EARLY 1 4 6
MAX LVORI LATE 1 4 6
MIN VSBY EARLY 9 7 2 FOG
MIN VSBY LATE 10 7 5 FOG
SUNSHINE HOURS N/A N/A N/A
CWR 0 0 10
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
WEDNESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 30S. SOUTH
WINDS AROUND 5 MPH, BECOMING SOUTHWEST AFTER MIDNIGHT.
THURSDAY THROUGH FRIDAY
PARTLY CLOUDY. LOWS IN THE MID 30S.
HIGHS IN THE MID 50S. NORTH WINDS 5 TO 10 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 30S. NORTHEAST
WINDS AROUND 5 MPH.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 50S. EAST WINDS
AROUND 5 MPH.
SATURDAY NIGHT THROUGH MONDAY
MOSTLY CLOUDY. LOWS IN THE UPPER
30S. HIGHS IN THE UPPER 50S. EAST WINDS 5 TO 10 MPH.
MAZ026-212000-
NORTHERN MIDDLESEX MA-
INCLUDING THE CITY OF AYER
409 AM EDT TUE APR 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLEAR PCLDY MCLDY
PRECIP TYPE NONE NONE RAIN
CHANCE PRECIP (%) 20 70
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 51 (+2) 33 (+6) 45
RH % (24H TREND) 19 (-15) 82 (+1) 73
20FT WND AM(MPH) LGT/VAR LGT/VAR
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.09
PRECIP DURATION 7
PRECIP BEGIN 6 AM
PRECIP END 6 PM
MIXING HGT (FT-AGL) 7630 450 2670
TRANSPORT WND (KTS) W 8 S 10 S 9
VENT RATE (KT-FT) 61040 4500 24030
MAX ADI EARLY 46 GEN GOOD 64 GOOD 17 GEN POOR
MAX ADI LATE 81 GOOD 6 VERY POOR 1 VERY POOR
MAX LVORI EARLY 1 4 6
MAX LVORI LATE 1 4 6
MIN VSBY EARLY 9 7 3 FOG
MIN VSBY LATE 10 7 5 FOG
SUNSHINE HOURS N/A N/A N/A
CWR 0 0 10
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
WEDNESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN. LOWS IN
THE UPPER 30S. SOUTH WINDS AROUND 5 MPH, BECOMING SOUTHWEST AFTER
MIDNIGHT.
THURSDAY THROUGH FRIDAY
PARTLY CLOUDY. LOWS IN THE UPPER 30S.
HIGHS IN THE UPPER 50S. NORTH WINDS 5 TO 10 MPH.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 30S. NORTH WINDS
AROUND 5 MPH.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 50S. EAST WINDS
AROUND 5 MPH.
SATURDAY NIGHT THROUGH MONDAY
MOSTLY CLOUDY. LOWS IN THE UPPER
30S. HIGHS AROUND 60. EAST WINDS AROUND 5 MPH.
MAZ002-212000-
WESTERN FRANKLIN MA-
INCLUDING THE CITY OF CHARLEMONT
409 AM EDT TUE APR 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLEAR MCLDY MCLDY
PRECIP TYPE NONE SNOW/RAIN SNOW/RAIN
CHANCE PRECIP (%) 10 40 70
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 48 (+5) 31 (+6) 44
RH % (24H TREND) 22 (-14) 92 (+8) 70
20FT WND AM(MPH) LGT/VAR LGT/VAR
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.04 0.10
PRECIP DURATION 1 7
PRECIP BEGIN 1 AM CONTINUING
PRECIP END CONTINUING 6 PM
MIXING HGT (FT-AGL) 6640 190 2540
TRANSPORT WND (KTS) W 8 S 6 S 7
VENT RATE (KT-FT) 53120 1140 17780
MAX ADI EARLY 56 GEN GOOD 60 GEN GOOD 1 VERY POOR
MAX ADI LATE 73 GOOD 8 POOR 12 POOR
MAX LVORI EARLY 1 5 6
MAX LVORI LATE 1 5 6
MIN VSBY EARLY 9 7 2 SNOW
MIN VSBY LATE 10 7 5 SNOW
SUNSHINE HOURS N/A N/A N/A
CWR 0 20 20
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
WEDNESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 30S. SOUTHEAST
WINDS AROUND 5 MPH, BECOMING SOUTHWEST AFTER MIDNIGHT.
THURSDAY THROUGH FRIDAY
PARTLY CLOUDY. LOWS IN THE MID 30S.
HIGHS IN THE MID 50S. NORTH WINDS 5 TO 10 MPH.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 30S. NORTHEAST
WINDS AROUND 5 MPH.
SATURDAY
MOSTLY SUNNY WITH A CHANCE OF RAIN SHOWERS. HIGHS IN
THE MID 50S. EAST WINDS AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS.
LOWS IN THE MID 30S. EAST WINDS AROUND 5 MPH.
SUNDAY THROUGH MONDAY
MOSTLY CLOUDY. LOWS IN THE UPPER 30S.
HIGHS IN THE UPPER 50S. EAST WINDS AROUND 5 MPH.
MAZ003-212000-
EASTERN FRANKLIN MA-
INCLUDING THE CITIES OF GREENFIELD AND ORANGE
409 AM EDT TUE APR 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLEAR MCLDY MCLDY
PRECIP TYPE NONE RAIN RAIN
CHANCE PRECIP (%) 10 30 70
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 50 (+4) 32 (+7) 45
RH % (24H TREND) 20 (-15) 96 (+4) 73
20FT WND AM(MPH) LGT/VAR S 5
20FT WND PM(MPH) LGT/VAR LGT/VAR S 5
PRECIP AMOUNT 0.00 0.03 0.11
PRECIP DURATION 1 7
PRECIP BEGIN 1 AM CONTINUING
PRECIP END CONTINUING 6 PM
MIXING HGT (FT-AGL) 7030 300 2790
TRANSPORT WND (KTS) W 7 S 7 S 9
VENT RATE (KT-FT) 49210 2100 25110
MAX ADI EARLY 44 GEN GOOD 64 GOOD 1 VERY POOR
MAX ADI LATE 68 GOOD 9 POOR 1 VERY POOR
MAX LVORI EARLY 1 5 6
MAX LVORI LATE 1 5 6
MIN VSBY EARLY 9 7 2 FOG
MIN VSBY LATE 10 7 5 FOG
SUNSHINE HOURS N/A N/A N/A
CWR 0 20 20
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
WEDNESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 30S. SOUTHEAST
WINDS AROUND 5 MPH, BECOMING SOUTHWEST AFTER MIDNIGHT.
THURSDAY THROUGH FRIDAY
PARTLY CLOUDY. LOWS IN THE UPPER 30S.
HIGHS IN THE UPPER 50S. NORTH WINDS 5 TO 10 MPH.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 30S. NORTHEAST
WINDS AROUND 5 MPH.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 50S. EAST WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE UPPER 30S. SOUTHEAST WINDS AROUND 5 MPH.
SUNDAY THROUGH MONDAY
MOSTLY CLOUDY. LOWS IN THE UPPER 30S.
HIGHS AROUND 60. EAST WINDS AROUND 5 MPH.
MAZ008-212000-
WESTERN HAMPSHIRE MA-
INCLUDING THE CITY OF CHESTERFIELD
409 AM EDT TUE APR 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLEAR MCLDY MCLDY
PRECIP TYPE NONE SNOW SNOW/RAIN
CHANCE PRECIP (%) 10 40 70
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 49 (+5) 32 (+6) 44
RH % (24H TREND) 21 (-14) 92 (+11) 76
20FT WND AM(MPH) LGT/VAR S 5
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.04 0.10
PRECIP DURATION 1 7
PRECIP BEGIN 1 AM CONTINUING
PRECIP END CONTINUING 6 PM
MIXING HGT (FT-AGL) 6520 330 2350
TRANSPORT WND (KTS) W 8 S 9 S 9
VENT RATE (KT-FT) 52160 2970 21150
MAX ADI EARLY 53 GEN GOOD 58 GEN GOOD 9 POOR
MAX ADI LATE 68 GOOD 10 POOR 8 POOR
MAX LVORI EARLY 1 5 6
MAX LVORI LATE 1 5 6
MIN VSBY EARLY 9 7 2 SNOW
MIN VSBY LATE 10 7 5 SNOW
SUNSHINE HOURS N/A N/A N/A
CWR 0 20 20
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
WEDNESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 30S. SOUTHEAST
WINDS AROUND 5 MPH, BECOMING WEST AFTER MIDNIGHT.
THURSDAY THROUGH FRIDAY
PARTLY CLOUDY. LOWS IN THE MID 30S.
HIGHS IN THE MID 50S. NORTHWEST WINDS 5 TO 10 MPH.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 30S. NORTHEAST
WINDS AROUND 5 MPH.
SATURDAY AND SATURDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF RAIN
SHOWERS. LOWS IN THE MID 30S. HIGHS IN THE MID 50S. EAST WINDS
AROUND 5 MPH.
SUNDAY THROUGH MONDAY
MOSTLY CLOUDY. LOWS IN THE UPPER 30S.
HIGHS IN THE UPPER 50S. EAST WINDS AROUND 5 MPH.
MAZ010-212000-
EASTERN HAMPSHIRE MA-
INCLUDING THE CITIES OF AMHERST AND NORTHAMPTON
409 AM EDT TUE APR 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLEAR MCLDY CLOUDY
PRECIP TYPE NONE RAIN RAIN
CHANCE PRECIP (%) 10 30 80
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 52 (+4) 33 (+7) 46
RH % (24H TREND) 20 (-12) 96 (+11) 71
20FT WND AM(MPH) LGT/VAR S 5
20FT WND PM(MPH) LGT/VAR S 6 S 5
PRECIP AMOUNT 0.00 0.03 0.11
PRECIP DURATION 1 7
PRECIP BEGIN 1 AM CONTINUING
PRECIP END CONTINUING 6 PM
MIXING HGT (FT-AGL) 7140 580 2790
TRANSPORT WND (KTS) W 7 S 7 S 12
VENT RATE (KT-FT) 49980 4060 33480
MAX ADI EARLY 43 GEN GOOD 66 GOOD 35 FAIR
MAX ADI LATE 67 GOOD 9 POOR 33 FAIR
MAX LVORI EARLY 1 4 3
MAX LVORI LATE 1 4 3
MIN VSBY EARLY 9 7 4 FOG
MIN VSBY LATE 10 7 5 FOG
SUNSHINE HOURS N/A N/A N/A
CWR 0 20 20
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
WEDNESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 30S.
SOUTHEAST WINDS AROUND 5 MPH, BECOMING SOUTHWEST AFTER MIDNIGHT.
THURSDAY THROUGH FRIDAY
PARTLY CLOUDY. LOWS IN THE UPPER 30S.
HIGHS IN THE UPPER 50S. NORTH WINDS 5 TO 10 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 30S. NORTHEAST
WINDS AROUND 5 MPH.
SATURDAY AND SATURDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF RAIN
SHOWERS. LOWS IN THE UPPER 30S. HIGHS IN THE UPPER 50S. EAST
WINDS AROUND 5 MPH.
SUNDAY THROUGH MONDAY
MOSTLY CLOUDY. LOWS IN THE UPPER 30S.
HIGHS IN THE LOWER 60S. EAST WINDS AROUND 5 MPH.
MAZ009-212000-
WESTERN HAMPDEN MA-
INCLUDING THE CITY OF BLANDFORD
409 AM EDT TUE APR 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLEAR MCLDY MCLDY
PRECIP TYPE NONE SNOW/RAIN SNOW/RAIN
CHANCE PRECIP (%) 10 40 80
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 49 (+4) 33 (+7) 45
RH % (24H TREND) 20 (-15) 96 (+11) 74
20FT WND AM(MPH) LGT/VAR S 6
20FT WND PM(MPH) LGT/VAR S 5 LGT/VAR
PRECIP AMOUNT 0.00 0.05 0.10
PRECIP DURATION 1 8
PRECIP BEGIN 12 AM CONTINUING
PRECIP END CONTINUING 6 PM
MIXING HGT (FT-AGL) 6470 360 2320
TRANSPORT WND (KTS) W 7 S 6 S 10
VENT RATE (KT-FT) 45290 2160 23200
MAX ADI EARLY 49 GEN GOOD 56 GEN GOOD 29 FAIR
MAX ADI LATE 66 GOOD 10 POOR 27 FAIR
MAX LVORI EARLY 1 5 4
MAX LVORI LATE 1 5 4
MIN VSBY EARLY 9 7 2 SNOW
MIN VSBY LATE 10 7 5 SNOW
SUNSHINE HOURS N/A N/A N/A
CWR 0 20 20
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
WEDNESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 30S. SOUTHEAST
WINDS AROUND 5 MPH, BECOMING WEST AFTER MIDNIGHT.
THURSDAY THROUGH FRIDAY
PARTLY CLOUDY. LOWS IN THE UPPER 30S.
HIGHS IN THE UPPER 50S. NORTHWEST WINDS 5 TO 10 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 30S. NORTHEAST
WINDS AROUND 5 MPH.
SATURDAY AND SATURDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF RAIN
SHOWERS. LOWS IN THE MID 30S. HIGHS IN THE MID 50S. EAST WINDS
AROUND 5 MPH.
SUNDAY THROUGH MONDAY
MOSTLY CLOUDY. LOWS IN THE UPPER 30S.
HIGHS AROUND 60. EAST WINDS AROUND 5 MPH.
MAZ011-212000-
EASTERN HAMPDEN MA-
INCLUDING THE CITY OF SPRINGFIELD
409 AM EDT TUE APR 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLEAR MCLDY CLOUDY
PRECIP TYPE NONE RAIN RAIN
CHANCE PRECIP (%) 10 30 80
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 52 (+3) 34 (+7) 47
RH % (24H TREND) 20 (-12) 92 (+7) 71
20FT WND AM(MPH) LGT/VAR S 6
20FT WND PM(MPH) LGT/VAR S 6 S 5 G17
PRECIP AMOUNT 0.00 0.03 0.10
PRECIP DURATION 1 7
PRECIP BEGIN 1 AM CONTINUING
PRECIP END CONTINUING 6 PM
MIXING HGT (FT-AGL) 7020 560 2770
TRANSPORT WND (KTS) W 7 S 12 S 13
VENT RATE (KT-FT) 49140 6720 36010
MAX ADI EARLY 42 GEN GOOD 62 GOOD 36 FAIR
MAX ADI LATE 66 GOOD 10 POOR 36 FAIR
MAX LVORI EARLY 1 4 3
MAX LVORI LATE 1 4 3
MIN VSBY EARLY 9 7 4 FOG
MIN VSBY LATE 10 7 5 FOG
SUNSHINE HOURS N/A N/A N/A
CWR 0 20 20
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
WEDNESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 30S.
SOUTHEAST WINDS AROUND 5 MPH, BECOMING SOUTHWEST AFTER MIDNIGHT.
THURSDAY THROUGH FRIDAY
PARTLY CLOUDY. LOWS IN THE UPPER 30S.
HIGHS IN THE UPPER 50S. NORTH WINDS 5 TO 10 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 30S. NORTHEAST
WINDS AROUND 5 MPH.
SATURDAY AND SATURDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF
SHOWERS. LOWS IN THE UPPER 30S. HIGHS IN THE UPPER 50S. EAST
WINDS AROUND 5 MPH.
SUNDAY THROUGH MONDAY
MOSTLY CLOUDY. LOWS IN THE UPPER 30S.
HIGHS IN THE LOWER 60S. EAST WINDS AROUND 5 MPH.
CTZ002-212000-
HARTFORD CT-
INCLUDING THE CITIES OF HARTFORD AND WINDSOR LOCKS
409 AM EDT TUE APR 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLEAR MCLDY CLOUDY
PRECIP TYPE NONE RAIN RAIN
CHANCE PRECIP (%) 10 40 80
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 52 (+2) 35 (+6) 48
RH % (24H TREND) 20 (-14) 96 (+14) 68
20FT WND AM(MPH) LGT/VAR S 6
20FT WND PM(MPH) SW 5 S 7 S 5
PRECIP AMOUNT 0.00 0.04 0.10
PRECIP DURATION 1 8
PRECIP BEGIN 1 AM CONTINUING
PRECIP END CONTINUING 6 PM
MIXING HGT (FT-AGL) 6960 680 2630
TRANSPORT WND (KTS) W 7 S 13 S 15
VENT RATE (KT-FT) 48720 8840 39450
MAX ADI EARLY 35 FAIR 67 GOOD 38 FAIR
MAX ADI LATE 74 GOOD 11 POOR 36 FAIR
MAX LVORI EARLY 1 4 3
MAX LVORI LATE 1 4 3
MIN VSBY EARLY 9 7 4 FOG
MIN VSBY LATE 10 7 5 FOG
SUNSHINE HOURS N/A N/A N/A
CWR 0 20 20
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
WEDNESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 30S. EAST
WINDS AROUND 5 MPH, BECOMING NORTH AFTER MIDNIGHT.
THURSDAY THROUGH FRIDAY
PARTLY CLOUDY. LOWS AROUND 40. HIGHS
IN THE LOWER 60S. NORTH WINDS 5 TO 10 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S. NORTHEAST
WINDS AROUND 5 MPH.
SATURDAY THROUGH SUNDAY
MOSTLY CLOUDY WITH A CHANCE OF
SHOWERS. LOWS AROUND 40. HIGHS IN THE UPPER 50S. EAST WINDS
AROUND 5 MPH.
SUNDAY NIGHT AND MONDAY
MOSTLY CLOUDY. LOWS AROUND 40. HIGHS
IN THE LOWER 60S. EAST WINDS AROUND 5 MPH.
CTZ003-212000-
TOLLAND CT-
INCLUDING THE CITIES OF UNION AND VERNON
409 AM EDT TUE APR 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLEAR MCLDY CLOUDY
PRECIP TYPE NONE RAIN RAIN
CHANCE PRECIP (%) 10 30 80
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 50 (+1) 34 (+6) 46
RH % (24H TREND) 21 (-14) 92 (+10) 71
20FT WND AM(MPH) LGT/VAR S 7
20FT WND PM(MPH) LGT/VAR S 6 S 6 G17
PRECIP AMOUNT 0.00 0.02 0.12
PRECIP DURATION 0 7
PRECIP BEGIN 3 AM CONTINUING
PRECIP END CONTINUING 6 PM
MIXING HGT (FT-AGL) 6660 510 2570
TRANSPORT WND (KTS) W 7 S 11 S 12
VENT RATE (KT-FT) 46620 5610 30840
MAX ADI EARLY 37 FAIR 60 GEN GOOD 35 FAIR
MAX ADI LATE 68 GOOD 10 POOR 35 FAIR
MAX LVORI EARLY 1 4 3
MAX LVORI LATE 1 4 3
MIN VSBY EARLY 9 7 4 FOG
MIN VSBY LATE 10 7 5 FOG
SUNSHINE HOURS N/A N/A N/A
CWR 0 20 20
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
WEDNESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 30S.
SOUTHEAST WINDS AROUND 5 MPH, BECOMING NORTHEAST AFTER MIDNIGHT.
THURSDAY
PARTLY SUNNY. HIGHS AROUND 60. NORTHWEST WINDS 5 TO
10 MPH.
THURSDAY NIGHT AND FRIDAY
PARTLY CLOUDY. LOWS AROUND 40. HIGHS
IN THE UPPER 50S. NORTH WINDS 5 TO 10 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S. EAST WINDS
AROUND 5 MPH.
SATURDAY AND SATURDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF RAIN
SHOWERS. LOWS IN THE UPPER 30S. HIGHS IN THE UPPER 50S. EAST
WINDS AROUND 5 MPH.
SUNDAY THROUGH MONDAY
MOSTLY CLOUDY. LOWS IN THE UPPER 30S.
HIGHS IN THE LOWER 60S. EAST WINDS AROUND 5 MPH.
CTZ004-212000-
WINDHAM CT-
INCLUDING THE CITIES OF PUTNAM AND WILLIMANTIC
409 AM EDT TUE APR 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLEAR PCLDY CLOUDY
PRECIP TYPE NONE NONE RAIN
CHANCE PRECIP (%) 20 80
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 50 (0) 34 (+5) 46
RH % (24H TREND) 21 (-17) 92 (+10) 70
20FT WND AM(MPH) LGT/VAR S 6
20FT WND PM(MPH) LGT/VAR S 5 S 5
PRECIP AMOUNT 0.00 0.00 0.12
PRECIP DURATION 7
PRECIP BEGIN 6 AM
PRECIP END 6 PM
MIXING HGT (FT-AGL) 6890 610 2570
TRANSPORT WND (KTS) W 6 S 11 S 13
VENT RATE (KT-FT) 41340 6710 33410
MAX ADI EARLY 40 FAIR 56 GEN GOOD 33 FAIR
MAX ADI LATE 65 GOOD 8 POOR 34 FAIR
MAX LVORI EARLY 1 4 4
MAX LVORI LATE 1 4 4
MIN VSBY EARLY 9 7 5 FOG
MIN VSBY LATE 10 7 5 FOG
SUNSHINE HOURS N/A N/A N/A
CWR 0 0 20
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
WEDNESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN. LOWS IN
THE UPPER 30S. SOUTHEAST WINDS AROUND 5 MPH, BECOMING NORTHEAST
AFTER MIDNIGHT.
THURSDAY
PARTLY SUNNY. HIGHS IN THE UPPER 50S. NORTHWEST WINDS
5 TO 10 MPH.
THURSDAY NIGHT AND FRIDAY
PARTLY CLOUDY. LOWS IN THE UPPER
30S. HIGHS IN THE UPPER 50S. NORTH WINDS 5 TO 10 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 30S. EAST WINDS
AROUND 5 MPH.
SATURDAY
PARTLY SUNNY. HIGHS IN THE UPPER 50S. EAST WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE UPPER 30S. SOUTHEAST WINDS AROUND 5 MPH, BECOMING EAST AFTER
MIDNIGHT.
SUNDAY THROUGH MONDAY
MOSTLY CLOUDY. LOWS IN THE UPPER 30S.
HIGHS IN THE LOWER 60S. EAST WINDS AROUND 5 MPH.
RIZ001-212000-
NORTHWEST PROVIDENCE RI-
INCLUDING THE CITIES OF FOSTER AND SMITHFIELD
409 AM EDT TUE APR 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLEAR PCLDY MCLDY
PRECIP TYPE NONE NONE RAIN
CHANCE PRECIP (%) 10 80
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 50 (0) 34 (+5) 46
RH % (24H TREND) 23 (-15) 85 (+3) 74
20FT WND AM(MPH) LGT/VAR S 6
20FT WND PM(MPH) LGT/VAR S 5 S 6
PRECIP AMOUNT 0.00 0.00 0.13
PRECIP DURATION 8
PRECIP BEGIN 6 AM
PRECIP END 6 PM
MIXING HGT (FT-AGL) 7120 630 2600
TRANSPORT WND (KTS) W 6 S 11 S 13
VENT RATE (KT-FT) 42720 6930 33800
MAX ADI EARLY 42 GEN GOOD 54 GEN GOOD 32 FAIR
MAX ADI LATE 65 GOOD 9 POOR 34 FAIR
MAX LVORI EARLY 1 4 4
MAX LVORI LATE 1 4 4
MIN VSBY EARLY 9 7 5 FOG
MIN VSBY LATE 10 7 5 FOG
SUNSHINE HOURS N/A N/A N/A
CWR 0 0 10
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
WEDNESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN. LOWS IN
THE UPPER 30S. SOUTHEAST WINDS AROUND 5 MPH.
THURSDAY
PARTLY SUNNY. HIGHS IN THE UPPER 50S. NORTHWEST WINDS
5 TO 10 MPH.
THURSDAY NIGHT AND FRIDAY
PARTLY CLOUDY. LOWS IN THE UPPER
30S. HIGHS IN THE UPPER 50S. NORTH WINDS AROUND 5 MPH.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 30S. EAST WINDS
AROUND 5 MPH, BECOMING NORTH AFTER MIDNIGHT.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 50S. EAST WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE UPPER 30S. SOUTHEAST WINDS AROUND 5 MPH, BECOMING NORTHEAST
AFTER MIDNIGHT.
SUNDAY THROUGH MONDAY
MOSTLY CLOUDY. LOWS IN THE UPPER 30S.
HIGHS AROUND 60. EAST WINDS AROUND 5 MPH.
RIZ002-212000-
SOUTHEAST PROVIDENCE RI-
INCLUDING THE CITY OF PROVIDENCE
409 AM EDT TUE APR 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLEAR PCLDY MCLDY
PRECIP TYPE NONE NONE RAIN
CHANCE PRECIP (%) 10 70
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 51 (0) 35 (+4) 47
RH % (24H TREND) 24 (-20) 82 (+4) 70
20FT WND AM(MPH) LGT/VAR S 6
20FT WND PM(MPH) S 5 S 6 S 7
PRECIP AMOUNT 0.00 0.00 0.12
PRECIP DURATION 8
PRECIP BEGIN 6 AM
PRECIP END CONTINUING
MIXING HGT (FT-AGL) 7310 660 2750
TRANSPORT WND (KTS) W 5 S 11 S 14
VENT RATE (KT-FT) 36550 7260 38500
MAX ADI EARLY 47 GEN GOOD 62 GOOD 36 FAIR
MAX ADI LATE 66 GOOD 8 POOR 37 FAIR
MAX LVORI EARLY 1 4 4
MAX LVORI LATE 1 4 4
MIN VSBY EARLY 9 7 5 FOG
MIN VSBY LATE 10 7 5 FOG
SUNSHINE HOURS N/A N/A N/A
CWR 0 0 10
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
WEDNESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN. LOWS IN
THE UPPER 30S. SOUTHEAST WINDS 5 TO 10 MPH.
THURSDAY
PARTLY SUNNY. HIGHS IN THE UPPER 50S. NORTHWEST WINDS
5 TO 10 MPH.
THURSDAY NIGHT THROUGH FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE
UPPER 30S. HIGHS IN THE UPPER 50S. NORTH WINDS 5 TO 10 MPH.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 50S. EAST WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE UPPER 30S. SOUTHEAST WINDS AROUND 5 MPH, BECOMING NORTHEAST
AFTER MIDNIGHT.
SUNDAY THROUGH MONDAY
MOSTLY CLOUDY. LOWS IN THE UPPER 30S.
HIGHS IN THE UPPER 50S. EAST WINDS 5 TO 10 MPH.
RIZ003-212000-
WESTERN KENT RI-
INCLUDING THE CITIES OF COVENTRY AND WEST GREENWICH
409 AM EDT TUE APR 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLEAR PCLDY CLOUDY
PRECIP TYPE NONE NONE RAIN
CHANCE PRECIP (%) 10 80
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 49 (-1) 35 (+5) 45
RH % (24H TREND) 25 (-22) 85 (+7) 76
20FT WND AM(MPH) LGT/VAR S 6
20FT WND PM(MPH) S 5 S 6 S 6
PRECIP AMOUNT 0.00 0.00 0.13
PRECIP DURATION 8
PRECIP BEGIN 6 AM
PRECIP END CONTINUING
MIXING HGT (FT-AGL) 6980 540 2410
TRANSPORT WND (KTS) W 6 S 10 S 13
VENT RATE (KT-FT) 41880 5400 31330
MAX ADI EARLY 41 GEN GOOD 55 GEN GOOD 32 FAIR
MAX ADI LATE 56 GEN GOOD 8 POOR 34 FAIR
MAX LVORI EARLY 1 4 4
MAX LVORI LATE 1 4 4
MIN VSBY EARLY 9 7 5 FOG
MIN VSBY LATE 10 7 5 FOG
SUNSHINE HOURS N/A N/A N/A
CWR 0 0 10
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
WEDNESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN. LOWS IN
THE UPPER 30S. SOUTHEAST WINDS AROUND 5 MPH, BECOMING NORTHEAST
AFTER MIDNIGHT.
THURSDAY
PARTLY SUNNY. HIGHS IN THE UPPER 50S. NORTHWEST WINDS
5 TO 10 MPH.
THURSDAY NIGHT AND FRIDAY
PARTLY CLOUDY. LOWS AROUND 40. HIGHS
IN THE UPPER 50S. NORTH WINDS AROUND 5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 30S. EAST WINDS
AROUND 5 MPH, BECOMING NORTHEAST AFTER MIDNIGHT.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE MID 50S. NORTHEAST WINDS
AROUND 5 MPH, BECOMING SOUTHEAST AROUND 5 MPH IN THE AFTERNOON.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE UPPER 30S. SOUTHEAST WINDS AROUND 5 MPH, BECOMING NORTHEAST
AFTER MIDNIGHT.
SUNDAY THROUGH MONDAY
MOSTLY CLOUDY. LOWS IN THE UPPER 30S.
HIGHS IN THE UPPER 50S. EAST WINDS AROUND 5 MPH.
RIZ004-212000-
EASTERN KENT RI-
INCLUDING THE CITIES OF EAST GREENWICH, WARWICK, AND WEST WARWICK
409 AM EDT TUE APR 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLEAR PCLDY MCLDY
PRECIP TYPE NONE NONE RAIN
CHANCE PRECIP (%) 10 70
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 50 (-1) 36 (+3) 46
RH % (24H TREND) 24 (-23) 85 (+7) 70
20FT WND AM(MPH) LGT/VAR S 7
20FT WND PM(MPH) S 6 S 7 S 8
PRECIP AMOUNT 0.00 0.00 0.12
PRECIP DURATION 8
PRECIP BEGIN 6 AM
PRECIP END CONTINUING
MIXING HGT (FT-AGL) 7250 660 2570
TRANSPORT WND (KTS) W 7 S 11 S 15
VENT RATE (KT-FT) 50750 7260 38550
MAX ADI EARLY 47 GEN GOOD 58 GEN GOOD 36 FAIR
MAX ADI LATE 62 GOOD 9 POOR 25 FAIR
MAX LVORI EARLY 1 4 4
MAX LVORI LATE 1 4 4
MIN VSBY EARLY 9 7 5 FOG
MIN VSBY LATE 10 7 5 FOG
SUNSHINE HOURS N/A N/A N/A
CWR 0 0 10
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
WEDNESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN. LOWS
AROUND 40. SOUTHEAST WINDS 5 TO 10 MPH, BECOMING EAST AFTER
MIDNIGHT.
THURSDAY
PARTLY SUNNY. HIGHS IN THE UPPER 50S. NORTHWEST WINDS
5 TO 10 MPH.
THURSDAY NIGHT THROUGH FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE
UPPER 30S. HIGHS IN THE UPPER 50S. NORTHEAST WINDS 5 TO 10 MPH.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE MID 50S. NORTHEAST WINDS
AROUND 5 MPH, BECOMING SOUTHEAST AROUND 5 MPH IN THE AFTERNOON.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE UPPER 30S. SOUTHEAST WINDS AROUND 5 MPH, BECOMING NORTHEAST
AFTER MIDNIGHT.
SUNDAY THROUGH MONDAY
MOSTLY CLOUDY. LOWS IN THE UPPER 30S.
HIGHS IN THE UPPER 50S. EAST WINDS 5 TO 10 MPH.
RIZ005-212000-
BRISTOL RI-
INCLUDING THE CITY OF BRISTOL
409 AM EDT TUE APR 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLEAR PCLDY MCLDY
PRECIP TYPE NONE NONE RAIN
CHANCE PRECIP (%) 10 70
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 49 (-2) 37 (+4) 47
RH % (24H TREND) 26 (-23) 82 (+7) 70
20FT WND AM(MPH) N 5 S 9
20FT WND PM(MPH) S 6 S 8 S 8
PRECIP AMOUNT 0.00 0.00 0.13
PRECIP DURATION 8
PRECIP BEGIN 6 AM
PRECIP END CONTINUING
MIXING HGT (FT-AGL) 6800 770 2680
TRANSPORT WND (KTS) W 7 S 12 S 16
VENT RATE (KT-FT) 47600 9240 42880
MAX ADI EARLY 47 GEN GOOD 55 GEN GOOD 38 FAIR
MAX ADI LATE 53 GEN GOOD 11 POOR 24 FAIR
MAX LVORI EARLY 1 3 5
MAX LVORI LATE 1 3 5
MIN VSBY EARLY 9 7 5 FOG
MIN VSBY LATE 10 7 5 FOG
SUNSHINE HOURS N/A N/A N/A
CWR 0 0 10
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
WEDNESDAY NIGHT
MOSTLY CLOUDY WITH RAIN LIKELY. LOWS IN THE
LOWER 40S. SOUTHEAST WINDS 5 TO 10 MPH, BECOMING EAST AFTER
MIDNIGHT.
THURSDAY
PARTLY SUNNY. HIGHS IN THE UPPER 50S. NORTHWEST WINDS
5 TO 10 MPH.
THURSDAY NIGHT THROUGH FRIDAY NIGHT
PARTLY CLOUDY. LOWS AROUND
40. HIGHS IN THE MID 50S. NORTHEAST WINDS 5 TO 10 MPH.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE MID 50S. NORTHEAST WINDS
AROUND 5 MPH, BECOMING EAST IN THE AFTERNOON.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS
AROUND 40. SOUTHEAST WINDS 5 TO 10 MPH, BECOMING NORTHEAST AFTER
MIDNIGHT.
SUNDAY THROUGH MONDAY
MOSTLY CLOUDY. LOWS AROUND 40. HIGHS IN
THE UPPER 50S. EAST WINDS 5 TO 10 MPH.
RIZ006-212000-
WASHINGTON RI-
INCLUDING THE CITIES OF NARRAGANSETT AND WESTERLY
409 AM EDT TUE APR 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLEAR PCLDY CLOUDY
PRECIP TYPE NONE NONE RAIN
CHANCE PRECIP (%) 10 80
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 49 (-2) 35 (+3) 46
RH % (24H TREND) 27 (-21) 85 (+6) 73
20FT WND AM(MPH) LGT/VAR S 8
20FT WND PM(MPH) S 6 S 6 S 8
PRECIP AMOUNT 0.00 0.00 0.13
PRECIP DURATION 8
PRECIP BEGIN 6 AM
PRECIP END CONTINUING
MIXING HGT (FT-AGL) 7080 510 2340
TRANSPORT WND (KTS) W 7 S 11 S 15
VENT RATE (KT-FT) 49560 5610 35100
MAX ADI EARLY 51 GEN GOOD 46 GEN GOOD 35 FAIR
MAX ADI LATE 51 GEN GOOD 9 POOR 35 FAIR
MAX LVORI EARLY 1 4 4
MAX LVORI LATE 1 4 4
MIN VSBY EARLY 9 7 5 FOG
MIN VSBY LATE 10 7 5 FOG
SUNSHINE HOURS N/A N/A N/A
CWR 0 0 20
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
WEDNESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN. LOWS IN
THE UPPER 30S. EAST WINDS 5 TO 10 MPH.
THURSDAY
PARTLY SUNNY. HIGHS IN THE UPPER 50S. NORTHWEST WINDS
5 TO 10 MPH.
THURSDAY NIGHT AND FRIDAY
PARTLY CLOUDY. LOWS AROUND 40. HIGHS
IN THE MID 50S. NORTH WINDS 5 TO 10 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S. SOUTHEAST
WINDS AROUND 5 MPH, BECOMING EAST AFTER MIDNIGHT.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 50S. NORTHEAST WINDS
AROUND 5 MPH, BECOMING SOUTHEAST IN THE AFTERNOON.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE UPPER 30S. EAST WINDS 5 TO 10 MPH.
SUNDAY THROUGH MONDAY
MOSTLY CLOUDY. LOWS IN THE UPPER 30S.
HIGHS IN THE MID 50S. EAST WINDS 5 TO 10 MPH.
RIZ007-212000-
NEWPORT RI-
INCLUDING THE CITY OF NEWPORT
409 AM EDT TUE APR 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLEAR PCLDY MCLDY
PRECIP TYPE NONE NONE RAIN
CHANCE PRECIP (%) 10 70
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 48 (-2) 37 (+3) 46
RH % (24H TREND) 28 (-21) 85 (+6) 70
20FT WND AM(MPH) NE 6 S 9
20FT WND PM(MPH) S 7 S 7 S 9
PRECIP AMOUNT 0.00 0.00 0.13
PRECIP DURATION 7
PRECIP BEGIN 6 AM
PRECIP END CONTINUING
MIXING HGT (FT-AGL) 6480 700 2650
TRANSPORT WND (KTS) NW 7 S 13 S 16
VENT RATE (KT-FT) 45360 9100 42400
MAX ADI EARLY 52 GEN GOOD 44 GEN GOOD 31 FAIR
MAX ADI LATE 46 GEN GOOD 15 GEN POOR 10 POOR
MAX LVORI EARLY 1 3 5
MAX LVORI LATE 1 3 5
MIN VSBY EARLY 9 7 5 FOG
MIN VSBY LATE 10 7 5 FOG
SUNSHINE HOURS N/A N/A N/A
CWR 0 0 20
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
WEDNESDAY NIGHT
MOSTLY CLOUDY WITH RAIN LIKELY. LOWS IN THE
LOWER 40S. SOUTHEAST WINDS 5 TO 10 MPH.
THURSDAY
PARTLY SUNNY. HIGHS IN THE MID 50S. NORTHWEST WINDS
5 TO 10 MPH.
THURSDAY NIGHT AND FRIDAY
PARTLY CLOUDY. LOWS IN THE LOWER
40S. HIGHS IN THE MID 50S. NORTH WINDS 5 TO 10 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S. SOUTHEAST
WINDS 5 TO 10 MPH, BECOMING NORTHEAST AFTER MIDNIGHT.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 50S. NORTHEAST WINDS
AROUND 5 MPH, BECOMING SOUTHEAST IN THE AFTERNOON.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS
AROUND 40. EAST WINDS 5 TO 10 MPH.
SUNDAY THROUGH MONDAY
MOSTLY CLOUDY. LOWS IN THE LOWER 40S.
HIGHS IN THE MID 50S. EAST WINDS 5 TO 10 MPH.
RIZ008-212000-
BLOCK ISLAND RI-
INCLUDING THE CITY OF NEW SHOREHAM
409 AM EDT TUE APR 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLEAR PCLDY CLOUDY
PRECIP TYPE NONE NONE RAIN
CHANCE PRECIP (%) 10 70
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 45 (-3) 40 (+2) 46
RH % (24H TREND) 41 (-17) 76 (0) 70
20FT WND AM(MPH) NE 8 S 12
20FT WND PM(MPH) S 6 S 9 S 12
PRECIP AMOUNT 0.00 0.00 0.12
PRECIP DURATION 8
PRECIP BEGIN 6 AM
PRECIP END CONTINUING
MIXING HGT (FT-AGL) 3620 1920 2370
TRANSPORT WND (KTS) NE 7 S 14 S 15
VENT RATE (KT-FT) 25340 26880 35550
MAX ADI EARLY 55 GEN GOOD 33 FAIR 31 FAIR
MAX ADI LATE 27 FAIR 25 FAIR 1 VERY POOR
MAX LVORI EARLY 2 3 6
MAX LVORI LATE 2 3 6
MIN VSBY EARLY 9 7 5 FOG
MIN VSBY LATE 10 7 5 FOG
SUNSHINE HOURS N/A N/A N/A
CWR 0 0 20
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
WEDNESDAY NIGHT
MOSTLY CLOUDY WITH RAIN LIKELY. LOWS IN THE
LOWER 40S. EAST WINDS 5 TO 10 MPH.
THURSDAY
PARTLY SUNNY. HIGHS IN THE LOWER 50S. WEST WINDS 5 TO
10 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 40S. NORTHWEST
WINDS 5 TO 10 MPH.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 50S. NORTH WINDS
AROUND 5 MPH, BECOMING SOUTH IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 40S. SOUTHEAST
WINDS AROUND 5 MPH.
SATURDAY THROUGH SUNDAY
MOSTLY CLOUDY WITH A CHANCE OF
SHOWERS. LOWS IN THE LOWER 40S. HIGHS AROUND 50. EAST WINDS 5 TO
10 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 40S. NORTHEAST
WINDS 5 TO 10 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 50S. EAST WINDS AROUND
10 MPH.
MAZ017-212000-
NORTHERN BRISTOL MA-
INCLUDING THE CITY OF TAUNTON
409 AM EDT TUE APR 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLEAR PCLDY MCLDY
PRECIP TYPE NONE NONE RAIN
CHANCE PRECIP (%) 10 70
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 50 (-2) 35 (+5) 47
RH % (24H TREND) 23 (-19) 85 (+3) 62
20FT WND AM(MPH) LGT/VAR S 6
20FT WND PM(MPH) LGT/VAR S 5 S 6
PRECIP AMOUNT 0.00 0.00 0.10
PRECIP DURATION 6
PRECIP BEGIN 6 AM
PRECIP END CONTINUING
MIXING HGT (FT-AGL) 7200 610 2820
TRANSPORT WND (KTS) W 5 S 11 S 14
VENT RATE (KT-FT) 36000 6710 39480
MAX ADI EARLY 46 GEN GOOD 59 GEN GOOD 37 FAIR
MAX ADI LATE 63 GOOD 8 POOR 38 FAIR
MAX LVORI EARLY 1 4 3
MAX LVORI LATE 1 4 3
MIN VSBY EARLY 9 7 5 FOG
MIN VSBY LATE 10 7 5 FOG
SUNSHINE HOURS N/A N/A N/A
CWR 0 0 10
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
WEDNESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN. LOWS IN
THE UPPER 30S. SOUTHEAST WINDS AROUND 5 MPH IN THE EVENING,
BECOMING LIGHT AND VARIABLE.
THURSDAY
PARTLY SUNNY. HIGHS IN THE UPPER 50S. NORTHWEST WINDS
5 TO 10 MPH.
THURSDAY NIGHT THROUGH FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE
UPPER 30S. HIGHS IN THE UPPER 50S. NORTH WINDS AROUND 5 MPH.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 50S. NORTHEAST WINDS
AROUND 5 MPH.
SATURDAY NIGHT THROUGH MONDAY
MOSTLY CLOUDY. LOWS IN THE UPPER
30S. HIGHS IN THE UPPER 50S. NORTHEAST WINDS AROUND 5 MPH.
MAZ018-212000-
WESTERN PLYMOUTH MA-
INCLUDING THE CITY OF BROCKTON
409 AM EDT TUE APR 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLEAR PCLDY MCLDY
PRECIP TYPE NONE NONE RAIN
CHANCE PRECIP (%) 10 70
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 50 (-2) 34 (+4) 47
RH % (24H TREND) 24 (-21) 85 (-7) 65
20FT WND AM(MPH) LGT/VAR S 7
20FT WND PM(MPH) LGT/VAR S 5 S 7
PRECIP AMOUNT 0.00 0.00 0.05
PRECIP DURATION 4
PRECIP BEGIN 7 AM
PRECIP END 6 PM
MIXING HGT (FT-AGL) 7010 550 3030
TRANSPORT WND (KTS) W 5 S 10 S 15
VENT RATE (KT-FT) 35050 5500 45450
MAX ADI EARLY 51 GEN GOOD 55 GEN GOOD 40 FAIR
MAX ADI LATE 51 GEN GOOD 5 VERY POOR 41 GEN GOOD
MAX LVORI EARLY 1 4 3
MAX LVORI LATE 1 4 3
MIN VSBY EARLY 9 7 7
MIN VSBY LATE 10 7 5 FOG
SUNSHINE HOURS N/A N/A N/A
CWR 0 0 10
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
WEDNESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN. LOWS IN
THE UPPER 30S. SOUTH WINDS AROUND 5 MPH.
THURSDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
MID 50S. NORTHWEST WINDS AROUND 5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S. NORTHWEST
WINDS AROUND 5 MPH.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE MID 50S. NORTH WINDS AROUND
5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 30S. SOUTHEAST
WINDS AROUND 5 MPH, BECOMING NORTHWEST AFTER MIDNIGHT.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE MID 50S. NORTHEAST WINDS
AROUND 5 MPH.
SATURDAY NIGHT THROUGH MONDAY
MOSTLY CLOUDY. LOWS IN THE UPPER
30S. HIGHS IN THE UPPER 50S. NORTHEAST WINDS AROUND 5 MPH.
MAZ019-212000-
EASTERN PLYMOUTH MA-
INCLUDING THE CITY OF PLYMOUTH
409 AM EDT TUE APR 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLEAR PCLDY MCLDY
PRECIP TYPE NONE NONE RAIN
CHANCE PRECIP (%) 10 70
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 46 (-5) 35 (+2) 46
RH % (24H TREND) 31 (-15) 89 (-3) 65
20FT WND AM(MPH) NE 5 S 8
20FT WND PM(MPH) SE 5 S 6 S 9
PRECIP AMOUNT 0.00 0.00 0.05
PRECIP DURATION 4
PRECIP BEGIN 7 AM
PRECIP END 6 PM
MIXING HGT (FT-AGL) 5980 550 3100
TRANSPORT WND (KTS) NW 7 S 12 S 15
VENT RATE (KT-FT) 41860 6600 46500
MAX ADI EARLY 52 GEN GOOD 38 FAIR 42 GEN GOOD
MAX ADI LATE 43 GEN GOOD 10 POOR 43 GEN GOOD
MAX LVORI EARLY 1 4 3
MAX LVORI LATE 1 4 3
MIN VSBY EARLY 9 7 7
MIN VSBY LATE 10 7 5 FOG
SUNSHINE HOURS N/A N/A N/A
CWR 0 0 10
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
WEDNESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN. LOWS IN
THE UPPER 30S. SOUTH WINDS 5 TO 10 MPH.
THURSDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
LOWER 50S. WEST WINDS 5 TO 10 MPH, BECOMING NORTHWEST IN THE
AFTERNOON.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S. NORTHWEST
WINDS 5 TO 10 MPH.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 50S. NORTH WINDS 5 TO
10 MPH, BECOMING NORTHEAST IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S. SOUTHEAST
WINDS AROUND 5 MPH, BECOMING NORTHWEST AFTER MIDNIGHT.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 50S. NORTHEAST WINDS
AROUND 5 MPH.
SATURDAY NIGHT THROUGH MONDAY
MOSTLY CLOUDY. LOWS AROUND 40.
HIGHS IN THE MID 50S. NORTHEAST WINDS 5 TO 10 MPH.
MAZ020-212000-
SOUTHERN BRISTOL MA-
INCLUDING THE CITIES OF FALL RIVER AND NEW BEDFORD
409 AM EDT TUE APR 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLEAR PCLDY MCLDY
PRECIP TYPE NONE NONE RAIN
CHANCE PRECIP (%) 10 70
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 50 (-1) 35 (+3) 47
RH % (24H TREND) 24 (-23) 85 (-4) 65
20FT WND AM(MPH) N 5 S 8
20FT WND PM(MPH) S 5 S 6 S 9 G17
PRECIP AMOUNT 0.00 0.00 0.09
PRECIP DURATION 6
PRECIP BEGIN 6 AM
PRECIP END CONTINUING
MIXING HGT (FT-AGL) 7240 430 2820
TRANSPORT WND (KTS) NW 6 S 12 S 16
VENT RATE (KT-FT) 43440 5160 45120
MAX ADI EARLY 56 GEN GOOD 53 GEN GOOD 42 GEN GOOD
MAX ADI LATE 50 GEN GOOD 9 POOR 41 GEN GOOD
MAX LVORI EARLY 1 4 4
MAX LVORI LATE 1 4 4
MIN VSBY EARLY 9 7 5 FOG
MIN VSBY LATE 10 7 5 FOG
SUNSHINE HOURS N/A N/A N/A
CWR 0 0 10
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
WEDNESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN. LOWS IN
THE UPPER 30S. SOUTHEAST WINDS 5 TO 10 MPH.
THURSDAY
PARTLY SUNNY. HIGHS IN THE MID 50S. NORTHWEST WINDS
5 TO 10 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 40. NORTHWEST WINDS
5 TO 10 MPH.
FRIDAY AND FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S.
HIGHS IN THE MID 50S. NORTHEAST WINDS 5 TO 10 MPH.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE MID 50S. EAST WINDS 5 TO
10 MPH.
SATURDAY NIGHT THROUGH MONDAY
MOSTLY CLOUDY. LOWS IN THE UPPER
30S. HIGHS IN THE UPPER 50S. EAST WINDS 5 TO 10 MPH.
MAZ021-212000-
SOUTHERN PLYMOUTH MA-
INCLUDING THE CITY OF MATTAPOISETT
409 AM EDT TUE APR 21 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE NONE NONE RAIN
CHANCE PRECIP (%) 10 70
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 49 (-2) 35 (+3) 47
RH % (24H TREND) 27 (-17) 79 (-13) 62
20FT WND AM(MPH) NE 5 S 9
20FT WND PM(MPH) LGT/VAR S 5 S 9 G17
PRECIP AMOUNT 0.00 0.00 0.06
PRECIP DURATION 5
PRECIP BEGIN 7 AM
PRECIP END CONTINUING
MIXING HGT (FT-AGL) 6870 510 2900
TRANSPORT WND (KTS) NW 6 S 11 S 16
VENT RATE (KT-FT) 41220 5610 46400
MAX ADI EARLY 62 GOOD 48 GEN GOOD 41 GEN GOOD
MAX ADI LATE 55 GEN GOOD 8 POOR 42 GEN GOOD
MAX LVORI EARLY 1 4 4
MAX LVORI LATE 1 4 4
MIN VSBY EARLY 9 7 7
MIN VSBY LATE 10 7 5 FOG
SUNSHINE HOURS N/A N/A N/A
CWR 0 0 10
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
WEDNESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN. LOWS IN
THE UPPER 30S. SOUTHEAST WINDS 5 TO 10 MPH.
THURSDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
MID 50S. WEST WINDS 5 TO 10 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S. NORTHWEST
WINDS AROUND 5 MPH.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE MID 50S. NORTH WINDS AROUND
5 MPH, BECOMING NORTHEAST AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 30S. SOUTHEAST
WINDS AROUND 5 MPH, BECOMING NORTH AFTER MIDNIGHT.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 50S. NORTHEAST WINDS
AROUND 5 MPH.
SATURDAY NIGHT THROUGH MONDAY
MOSTLY CLOUDY. LOWS IN THE UPPER
30S. HIGHS IN THE MID 50S. NORTHEAST WINDS 5 TO 10 MPH.
MAZ022-212000-
BARNSTABLE MA-
INCLUDING THE CITIES OF CHATHAM, FALMOUTH, AND PROVINCETOWN
409 AM EDT TUE APR 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLEAR PCLDY MCLDY
PRECIP TYPE NONE NONE RAIN
CHANCE PRECIP (%) 70
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 46 (-4) 35 (+1) 46
RH % (24H TREND) 30 (-18) 85 (-15) 63
20FT WND AM(MPH) NE 6 S 9
20FT WND PM(MPH) E 5 S 5 S 11
PRECIP AMOUNT 0.00 0.00 0.04
PRECIP DURATION 4
PRECIP BEGIN 8 AM
PRECIP END CONTINUING
MIXING HGT (FT-AGL) 5850 720 3140
TRANSPORT WND (KTS) N 7 S 11 S 17
VENT RATE (KT-FT) 40950 7920 53380
MAX ADI EARLY 62 GOOD 32 FAIR 45 GEN GOOD
MAX ADI LATE 48 GEN GOOD 9 POOR 46 GEN GOOD
MAX LVORI EARLY 2 3 4
MAX LVORI LATE 2 3 4
MIN VSBY EARLY 9 7 7
MIN VSBY LATE 10 7 5 FOG
SUNSHINE HOURS N/A N/A N/A
CWR 0 0 10
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
WEDNESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN. LOWS
AROUND 40. SOUTHEAST WINDS 10 TO 15 MPH.
THURSDAY
PARTLY SUNNY. HIGHS AROUND 50. SOUTHWEST WINDS AROUND
5 MPH, BECOMING NORTHWEST IN THE AFTERNOON.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 40. NORTHWEST WINDS
5 TO 10 MPH.
FRIDAY
MOSTLY SUNNY. HIGHS AROUND 50. NORTH WINDS 5 TO 10 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S. SOUTHEAST
WINDS AROUND 5 MPH, BECOMING NORTHWEST AFTER MIDNIGHT.
SATURDAY
MOSTLY SUNNY. HIGHS AROUND 50. NORTHEAST WINDS 5 TO
10 MPH.
SATURDAY NIGHT AND SUNDAY
MOSTLY CLOUDY. LOWS IN THE LOWER
40S. HIGHS IN THE LOWER 50S. NORTHEAST WINDS 5 TO 10 MPH.
SUNDAY NIGHT AND MONDAY
PARTLY CLOUDY. LOWS IN THE LOWER 40S.
HIGHS IN THE LOWER 50S. NORTHEAST WINDS 5 TO 10 MPH.
MAZ023-212000-
DUKES MA-
INCLUDING THE CITY OF VINEYARD HAVEN
409 AM EDT TUE APR 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLEAR PCLDY MCLDY
PRECIP TYPE NONE NONE RAIN
CHANCE PRECIP (%) 70
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 48 (-2) 36 (0) 46
RH % (24H TREND) 31 (-15) 76 (-13) 65
20FT WND AM(MPH) NE 8 S 10
20FT WND PM(MPH) SE 5 S 6 S 12 G18
PRECIP AMOUNT 0.00 0.00 0.06
PRECIP DURATION 5
PRECIP BEGIN 7 AM
PRECIP END CONTINUING
MIXING HGT (FT-AGL) 4700 1550 2830
TRANSPORT WND (KTS) N 7 S 13 S 17
VENT RATE (KT-FT) 32900 20150 48110
MAX ADI EARLY 65 GOOD 37 FAIR 40 FAIR
MAX ADI LATE 43 GEN GOOD 19 GEN POOR 1 VERY POOR
MAX LVORI EARLY 2 3 4
MAX LVORI LATE 2 3 4
MIN VSBY EARLY 9 7 7
MIN VSBY LATE 10 7 5 FOG
SUNSHINE HOURS N/A N/A N/A
CWR 0 0 10
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
WEDNESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN. LOWS IN
THE LOWER 40S. SOUTHEAST WINDS 10 TO 15 MPH.
THURSDAY
PARTLY SUNNY. HIGHS IN THE LOWER 50S. WEST WINDS 5 TO
10 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 40S. NORTHWEST
WINDS 5 TO 10 MPH.
FRIDAY AND FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 40S.
HIGHS IN THE LOWER 50S. NORTHEAST WINDS 5 TO 10 MPH.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 50S. NORTHEAST WINDS
5 TO 10 MPH.
SATURDAY NIGHT AND SUNDAY
MOSTLY CLOUDY. LOWS IN THE LOWER
40S. HIGHS IN THE LOWER 50S. EAST WINDS 10 TO 15 MPH.
SUNDAY NIGHT AND MONDAY
PARTLY CLOUDY. LOWS IN THE LOWER 40S.
HIGHS IN THE MID 50S. NORTHEAST WINDS 10 TO 15 MPH.
MAZ024-212000-
NANTUCKET MA-
INCLUDING THE CITY OF NANTUCKET
409 AM EDT TUE APR 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLEAR PCLDY MCLDY
PRECIP TYPE NONE NONE RAIN
CHANCE PRECIP (%) 70
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 45 (-5) 36 (-2) 46
RH % (24H TREND) 38 (-13) 79 (-10) 63
20FT WND AM(MPH) NE 9 S 10
20FT WND PM(MPH) E 5 SE 5 S 13
PRECIP AMOUNT 0.00 0.00 0.06
PRECIP DURATION 4
PRECIP BEGIN 9 AM
PRECIP END CONTINUING
MIXING HGT (FT-AGL) 4020 1840 3070
TRANSPORT WND (KTS) N 11 S 11 S 18
VENT RATE (KT-FT) 44220 20240 55260
MAX ADI EARLY 61 GOOD 27 FAIR 43 GEN GOOD
MAX ADI LATE 59 GEN GOOD 8 POOR 1 VERY POOR
MAX LVORI EARLY 2 3 4
MAX LVORI LATE 2 3 4
MIN VSBY EARLY 9 7 7
MIN VSBY LATE 10 7 5 FOG
SUNSHINE HOURS N/A N/A N/A
CWR 0 0 10
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
WEDNESDAY NIGHT
CLOUDY WITH A CHANCE OF RAIN. LOWS IN THE
LOWER 40S. SOUTHEAST WINDS 10 TO 15 MPH.
THURSDAY
PARTLY SUNNY. HIGHS IN THE UPPER 40S. EAST WINDS 5 TO
10 MPH, BECOMING WEST IN THE AFTERNOON.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 40S. NORTHWEST
WINDS 5 TO 10 MPH.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 40S. NORTH WINDS 5 TO
10 MPH.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 40S. NORTHEAST
WINDS AROUND 5 MPH, BECOMING NORTH AFTER MIDNIGHT.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 40S. NORTHEAST WINDS
5 TO 10 MPH.
SATURDAY NIGHT AND SUNDAY
MOSTLY CLOUDY. LOWS IN THE LOWER
40S. HIGHS IN THE UPPER 40S. NORTHEAST WINDS 5 TO 10 MPH.
SUNDAY NIGHT AND MONDAY
PARTLY CLOUDY. LOWS IN THE MID 40S.
HIGHS IN THE LOWER 50S. NORTHEAST WINDS 10 TO 15 MPH.
OUTLOOK 8 TO 14 DAYS
TEMPERATURES BELOW NORMAL. PRECIPITATION ABOVE NORMAL.
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