441  
FNUS51 KBOX 212010  
FWFBOX  
 
FIRE WEATHER PLANNING FORECAST FOR SOUTHERN NEW ENGLAND  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
409 PM EDT FRI AUG 21 2026  
   
DISCUSSION  
PERIODS OF SHOWERS EXPECTED TO CONTINUE THROUGH  
THIS WEEKEND. THE MAIN FOCUS WILL BE TOWARDS SOUTHEAST MA TONIGHT  
THROUGH SATURDAY NIGHT. THE THE FOCUS SHIFTS MORE TOWARDS  
INTERIOR SOUTHERN NEW ENGLAND SUNDAY AFTERNOON AND EVENING.  
 
LOWEST RELATIVE HUMIDITY VALUES EXPECTED TO RANGE BETWEEN  
70-90 PERCENT BOTH SATURDAY AND SUNDAY.  
   
OUTLOOK...SUNDAY NIGHT THROUGH FRIDAY  
 
HIGH PRESSURE ARRIVING FROM THE WEST MONDAY SHOULD RESULT IN  
DRIER WEATHER MONDAY THROUGH WEDNESDAY. ANOTHER COLD FRONT AND  
WEAK LOW PRESSURE MAY APPROACH SOUTHERN NEW ENGLAND FOR NEXT  
THURSDAY INTO FRIDAY.  
 
MAZ015-220800-  
SUFFOLK MA-  
INCLUDING THE CITY OF BOSTON  
409 PM EDT FRI AUG 21 2026  
 
TONIGHT SAT SAT NIGHT SUN  
 
CLOUD COVER MCLDY MCLDY MCLDY MCLDY  
PRECIP TYPE SHOWERS SHOWERS SHOWERS TSTMS  
CHANCE PRECIP (%) 20 40 40 60  
CHANCE OF THUNDER (%) 0 0 0 20  
TEMP (24H TREND) 62 (-3) 73 (0) 62 79  
RH % (24H TREND) 100 (0) 84 (+37) 100 74  
20FT WND AM(MPH) NE 7 LGT/VAR  
20FT WND PM(MPH) LGT/VAR NE 7 LGT/VAR SE 5  
PRECIP AMOUNT 0.00 0.01 0.02 0.12  
PRECIP DURATION 2 1 3  
PRECIP BEGIN 6 AM CONTINUING CONTINUING  
PRECIP END CONTINUING CONTINUING 6 PM  
MIXING HGT (FT-AGL) 570 1990 480 1970  
TRANSPORT WND (KTS) NE 9 NE 12 NE 5 E 7  
VENT RATE (KT-FT) 5130 23880 2400 13790  
MAX ADI EARLY 7 POOR 1 VERY POOR 5 VERY POOR 11 POOR  
MAX ADI LATE 9 POOR 1 VERY POOR 3 VERY POOR 1 VERY POOR  
MAX LVORI EARLY 6 7 10 6  
MAX LVORI LATE 6 7 10 6  
MIN VSBY EARLY 10 10 5 FOG 5 FOG  
MIN VSBY LATE 10 10 5 FOG 6 FOG  
SUNSHINE HOURS N/A N/A N/A N/A  
CWR 10 10 40 50  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7  
   
SUNDAY NIGHT  
MOSTLY CLOUDY. LOWS IN THE MID 60S. SOUTHWEST  
WINDS AROUND 5 MPH.    
MONDAY THROUGH WEDNESDAY  
MOSTLY CLEAR. LOWS 61 TO 66. HIGHS  
AROUND 80. SOUTHWEST WINDS 5 TO 10 MPH.    
WEDNESDAY NIGHT  
PARTLY CLOUDY. LOWS IN THE MID 60S. SOUTHWEST  
WINDS AROUND 5 MPH.    
THURSDAY THROUGH FRIDAY  
MOSTLY CLOUDY WITH A CHANCE OF  
SHOWERS. LOWS IN THE MID 60S. HIGHS IN THE LOWER 80S. SOUTHWEST  
WINDS 5 TO 10 MPH.  
 
 
 
MAZ016-220800-  
EASTERN NORFOLK MA-  
INCLUDING THE CITY OF QUINCY  
409 PM EDT FRI AUG 21 2026  
 
TONIGHT SAT SAT NIGHT SUN  
 
CLOUD COVER MCLDY MCLDY MCLDY MCLDY  
PRECIP TYPE SHOWERS SHOWERS SHOWERS TSTMS  
CHANCE PRECIP (%) 20 40 40 60  
CHANCE OF THUNDER (%) 0 0 0 20  
TEMP (24H TREND) 61 (-3) 73 (+1) 61 79  
RH % (24H TREND) 100 (0) 84 (+33) 100 72  
20FT WND AM(MPH) NE 7 LGT/VAR  
20FT WND PM(MPH) LGT/VAR NE 6 LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.00 0.00 0.03 0.10  
PRECIP DURATION 1 2  
PRECIP BEGIN 6 PM CONTINUING  
PRECIP END CONTINUING 6 PM  
MIXING HGT (FT-AGL) 430 1920 460 1970  
TRANSPORT WND (KTS) NE 9 NE 13 NE 5 SE 8  
VENT RATE (KT-FT) 3870 24960 2300 15760  
MAX ADI EARLY 8 POOR 1 VERY POOR 5 VERY POOR 11 POOR  
MAX ADI LATE 11 POOR 1 VERY POOR 3 VERY POOR 1 VERY POOR  
MAX LVORI EARLY 7 7 10 6  
MAX LVORI LATE 7 7 10 6  
MIN VSBY EARLY 10 10 5 FOG 4 FOG  
MIN VSBY LATE 10 10 5 FOG 6 FOG  
SUNSHINE HOURS N/A N/A N/A N/A  
CWR 10 10 40 50  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7  
   
SUNDAY NIGHT  
MOSTLY CLOUDY. LOWS IN THE MID 60S. SOUTHWEST  
WINDS AROUND 5 MPH.    
MONDAY THROUGH WEDNESDAY  
MOSTLY CLEAR. LOWS 60 TO 65. HIGHS IN  
THE LOWER 80S. SOUTHWEST WINDS 5 TO 10 MPH.    
WEDNESDAY NIGHT  
PARTLY CLOUDY. LOWS IN THE LOWER 60S.  
SOUTHWEST WINDS AROUND 5 MPH.    
THURSDAY THROUGH FRIDAY  
MOSTLY CLOUDY WITH A CHANCE OF  
SHOWERS. LOWS IN THE MID 60S. HIGHS IN THE LOWER 80S. SOUTHWEST  
WINDS 5 TO 10 MPH.  
 
 
 
MAZ013-220800-  
WESTERN NORFOLK MA-  
INCLUDING THE CITIES OF FOXBOROUGH AND NORWOOD  
409 PM EDT FRI AUG 21 2026  
 
TONIGHT SAT SAT NIGHT SUN  
 
CLOUD COVER MCLDY MCLDY MCLDY MCLDY  
PRECIP TYPE SHOWERS SHOWERS SHOWERS TSTMS  
CHANCE PRECIP (%) 20 30 40 60  
CHANCE OF THUNDER (%) 0 0 0 20  
TEMP (24H TREND) 59 (-4) 72 (-1) 60 79  
RH % (24H TREND) 100 (0) 84 (+38) 100 77  
20FT WND AM(MPH) NE 5 LGT/VAR  
20FT WND PM(MPH) LGT/VAR NE 5 LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.00 0.00 0.03 0.13  
PRECIP DURATION 1 3  
PRECIP BEGIN 6 PM CONTINUING  
PRECIP END CONTINUING 6 PM  
MIXING HGT (FT-AGL) 430 2300 430 2260  
TRANSPORT WND (KTS) NE 8 NE 11 N 4 SE 10  
VENT RATE (KT-FT) 3440 25300 1720 22600  
MAX ADI EARLY 6 VERY POOR 1 VERY POOR 10 POOR 15 GEN POOR  
MAX ADI LATE 7 POOR 1 VERY POOR 2 VERY POOR 18 GEN POOR  
MAX LVORI EARLY 9 8 10 6  
MAX LVORI LATE 9 8 10 6  
MIN VSBY EARLY 10 10 5 FOG 3 FOG  
MIN VSBY LATE 10 10 5 FOG 5 FOG  
SUNSHINE HOURS N/A N/A N/A N/A  
CWR 10 10 40 50  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7  
   
SUNDAY NIGHT  
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTHWEST  
WINDS AROUND 5 MPH.    
MONDAY THROUGH WEDNESDAY  
MOSTLY CLEAR. LOWS 57 TO 62. HIGHS IN  
THE LOWER 80S. WEST WINDS 5 TO 10 MPH.    
WEDNESDAY NIGHT  
PARTLY CLOUDY. LOWS IN THE LOWER 60S.  
SOUTHWEST WINDS AROUND 5 MPH.    
THURSDAY THROUGH FRIDAY  
MOSTLY CLOUDY WITH A CHANCE OF  
SHOWERS. LOWS IN THE LOWER 60S. HIGHS IN THE LOWER 80S. SOUTHWEST  
WINDS AROUND 5 MPH.  
 
 
 
MAZ014-220800-  
SOUTHEAST MIDDLESEX MA-  
INCLUDING THE CITY OF CAMBRIDGE  
409 PM EDT FRI AUG 21 2026  
 
TONIGHT SAT SAT NIGHT SUN  
 
CLOUD COVER MCLDY MCLDY MCLDY MCLDY  
PRECIP TYPE SHOWERS SHOWERS SHOWERS TSTMS  
CHANCE PRECIP (%) 20 40 40 60  
CHANCE OF THUNDER (%) 0 0 0 20  
TEMP (24H TREND) 61 (-3) 73 (-2) 61 78  
RH % (24H TREND) 97 (-3) 81 (+34) 100 74  
20FT WND AM(MPH) NE 5 LGT/VAR  
20FT WND PM(MPH) LGT/VAR NE 6 LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.00 0.03 0.02 0.19  
PRECIP DURATION 2 1 4  
PRECIP BEGIN 6 AM CONTINUING CONTINUING  
PRECIP END CONTINUING CONTINUING 6 PM  
MIXING HGT (FT-AGL) 610 2400 430 2090  
TRANSPORT WND (KTS) N 9 NE 11 NE 4 SE 8  
VENT RATE (KT-FT) 5490 26400 1720 16720  
MAX ADI EARLY 25 FAIR 1 VERY POOR 4 VERY POOR 12 POOR  
MAX ADI LATE 7 POOR 1 VERY POOR 2 VERY POOR 1 VERY POOR  
MAX LVORI EARLY 6 6 10 6  
MAX LVORI LATE 6 6 10 6  
MIN VSBY EARLY 10 10 5 FOG 3 FOG  
MIN VSBY LATE 10 10 3 FOG 4 FOG  
SUNSHINE HOURS N/A N/A N/A N/A  
CWR 10 10 40 50  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7  
   
SUNDAY NIGHT  
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN  
THE MID 60S. SOUTHWEST WINDS AROUND 5 MPH.    
MONDAY  
SUNNY. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS 5 TO  
10 MPH.    
MONDAY NIGHT  
CLEAR. LOWS IN THE UPPER 50S. SOUTHWEST WINDS  
AROUND 5 MPH.    
TUESDAY THROUGH WEDNESDAY  
MOSTLY CLEAR. LOWS AROUND 60. HIGHS  
IN THE LOWER 80S. WEST WINDS 5 TO 10 MPH.    
WEDNESDAY NIGHT  
PARTLY CLOUDY. LOWS IN THE LOWER 60S.  
SOUTHWEST WINDS AROUND 5 MPH.    
THURSDAY THROUGH FRIDAY  
MOSTLY CLOUDY WITH A CHANCE OF  
SHOWERS. LOWS IN THE MID 60S. HIGHS IN THE LOWER 80S. SOUTHWEST  
WINDS AROUND 5 MPH.  
 
 
 
MAZ007-220800-  
EASTERN ESSEX MA-  
INCLUDING THE CITY OF GLOUCESTER  
409 PM EDT FRI AUG 21 2026  
 
TONIGHT SAT SAT NIGHT SUN  
 
CLOUD COVER MCLDY MCLDY MCLDY MCLDY  
PRECIP TYPE SHOWERS SHOWERS SHOWERS TSTMS  
CHANCE PRECIP (%) 20 40 40 50  
CHANCE OF THUNDER (%) 0 0 0 20  
TEMP (24H TREND) 60 (-4) 73 (+1) 60 78  
RH % (24H TREND) 100 (0) 81 (+30) 100 79  
20FT WND AM(MPH) NE 7 LGT/VAR  
20FT WND PM(MPH) LGT/VAR NE 7 LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.00 0.02 0.02 0.10  
PRECIP DURATION 2 1 2  
PRECIP BEGIN 6 AM CONTINUING CONTINUING  
PRECIP END CONTINUING CONTINUING 6 PM  
MIXING HGT (FT-AGL) 440 1660 430 1640  
TRANSPORT WND (KTS) NE 9 NE 13 NE 4 E 8  
VENT RATE (KT-FT) 3960 21580 1720 13120  
MAX ADI EARLY 5 VERY POOR 1 VERY POOR 7 POOR 10 POOR  
MAX ADI LATE 10 POOR 1 VERY POOR 3 VERY POOR 1 VERY POOR  
MAX LVORI EARLY 7 7 10 7  
MAX LVORI LATE 7 7 10 7  
MIN VSBY EARLY 10 10 5 FOG 4 FOG  
MIN VSBY LATE 10 10 3 FOG 8  
SUNSHINE HOURS N/A N/A N/A N/A  
CWR 10 10 40 40  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7  
   
SUNDAY NIGHT  
MOSTLY CLOUDY. LOWS IN THE MID 60S. SOUTH WINDS  
AROUND 5 MPH.    
MONDAY  
SUNNY. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS 5 TO  
10 MPH.    
MONDAY NIGHT  
CLEAR. LOWS AROUND 60. SOUTHWEST WINDS 5 TO  
10 MPH.    
TUESDAY AND TUESDAY NIGHT  
MOSTLY CLEAR. LOWS AROUND 60. HIGHS  
IN THE UPPER 70S. WEST WINDS 5 TO 10 MPH.    
WEDNESDAY  
SUNNY. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS  
AROUND 5 MPH.    
WEDNESDAY NIGHT  
PARTLY CLOUDY. LOWS IN THE LOWER 60S.  
SOUTHWEST WINDS AROUND 5 MPH.    
THURSDAY THROUGH FRIDAY  
MOSTLY CLOUDY WITH A CHANCE OF  
SHOWERS. LOWS IN THE MID 60S. HIGHS AROUND 80. SOUTH WINDS 5 TO  
10 MPH.  
 
 
 
MAZ006-220800-  
WESTERN ESSEX MA-  
INCLUDING THE CITY OF LAWRENCE  
409 PM EDT FRI AUG 21 2026  
 
TONIGHT SAT SAT NIGHT SUN  
 
CLOUD COVER MCLDY MCLDY MCLDY MCLDY  
PRECIP TYPE NONE SHOWERS SHOWERS TSTMS  
CHANCE PRECIP (%) 10 40 30 60  
CHANCE OF THUNDER (%) 0 0 0 20  
TEMP (24H TREND) 58 (-5) 73 (-2) 59 78  
RH % (24H TREND) 100 (0) 81 (+34) 100 79  
20FT WND AM(MPH) LGT/VAR LGT/VAR  
20FT WND PM(MPH) LGT/VAR NE 5 LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.00 0.08 0.04 0.21  
PRECIP DURATION 2 1 3  
PRECIP BEGIN 6 AM CONTINUING CONTINUING  
PRECIP END CONTINUING CONTINUING 6 PM  
MIXING HGT (FT-AGL) 420 2270 410 2220  
TRANSPORT WND (KTS) NE 8 NE 12 NE 4 SE 8  
VENT RATE (KT-FT) 3360 27240 1640 17760  
MAX ADI EARLY 21 FAIR 1 VERY POOR 4 VERY POOR 13 GEN POOR  
MAX ADI LATE 6 VERY POOR 1 VERY POOR 3 VERY POOR 15 GEN POOR  
MAX LVORI EARLY 8 7 10 6  
MAX LVORI LATE 8 7 10 6  
MIN VSBY EARLY 10 10 5 FOG 3 FOG  
MIN VSBY LATE 10 6 FOG 3 FOG 3 FOG  
SUNSHINE HOURS N/A N/A N/A N/A  
CWR 0 30 30 50  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7  
   
SUNDAY NIGHT  
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN  
THE LOWER 60S. SOUTHWEST WINDS AROUND 5 MPH.    
MONDAY THROUGH WEDNESDAY  
MOSTLY CLEAR. LOWS 57 TO 62. HIGHS IN  
THE LOWER 80S. WEST WINDS 5 TO 10 MPH.    
WEDNESDAY NIGHT  
PARTLY CLOUDY. LOWS AROUND 60. SOUTHWEST WINDS  
AROUND 5 MPH.    
THURSDAY THROUGH FRIDAY  
MOSTLY CLOUDY WITH A CHANCE OF  
SHOWERS. LOWS IN THE LOWER 60S. HIGHS IN THE LOWER 80S. SOUTHWEST  
WINDS AROUND 5 MPH.  
 
 
 
MAZ005-220800-  
CENTRAL MIDDLESEX MA-  
INCLUDING THE CITIES OF FRAMINGHAM AND LOWELL  
409 PM EDT FRI AUG 21 2026  
 
TONIGHT SAT SAT NIGHT SUN  
 
CLOUD COVER MCLDY MCLDY MCLDY MCLDY  
PRECIP TYPE NONE SHOWERS SHOWERS TSTMS  
CHANCE PRECIP (%) 10 40 40 60  
CHANCE OF THUNDER (%) 0 0 0 20  
TEMP (24H TREND) 57 (-6) 73 (-2) 59 78  
RH % (24H TREND) 100 (0) 79 (+32) 100 76  
20FT WND AM(MPH) LGT/VAR LGT/VAR  
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.00 0.04 0.04 0.24  
PRECIP DURATION 2 2 4  
PRECIP BEGIN 6 AM CONTINUING CONTINUING  
PRECIP END CONTINUING CONTINUING CONTINUING  
MIXING HGT (FT-AGL) 420 2770 420 2430  
TRANSPORT WND (KTS) NE 6 NE 10 E 4 SE 8  
VENT RATE (KT-FT) 2520 27700 1680 19440  
MAX ADI EARLY 30 FAIR 3 VERY POOR 12 POOR 14 GEN POOR  
MAX ADI LATE 5 VERY POOR 1 VERY POOR 2 VERY POOR 16 GEN POOR  
MAX LVORI EARLY 8 6 10 6  
MAX LVORI LATE 8 6 10 6  
MIN VSBY EARLY 10 10 5 FOG 3 FOG  
MIN VSBY LATE 10 8 3 FOG 3 FOG  
SUNSHINE HOURS N/A N/A N/A N/A  
CWR 0 20 30 50  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7  
   
SUNDAY NIGHT  
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN  
THE LOWER 60S. SOUTHWEST WINDS AROUND 5 MPH.    
MONDAY  
SUNNY. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS 5 TO  
10 MPH.    
MONDAY NIGHT  
CLEAR. LOWS IN THE UPPER 50S. SOUTHWEST WINDS  
5 TO 10 MPH.    
TUESDAY THROUGH WEDNESDAY  
MOSTLY CLEAR. LOWS IN THE UPPER 50S.  
HIGHS IN THE LOWER 80S. WEST WINDS AROUND 5 MPH.    
WEDNESDAY NIGHT  
PARTLY CLOUDY. LOWS AROUND 60. SOUTHWEST WINDS  
AROUND 5 MPH.    
THURSDAY THROUGH FRIDAY  
MOSTLY CLOUDY WITH A CHANCE OF  
SHOWERS. LOWS IN THE LOWER 60S. HIGHS IN THE LOWER 80S. WEST  
WINDS AROUND 5 MPH.  
 
 
 
MAZ012-220800-  
SOUTHERN WORCESTER MA-  
INCLUDING THE CITIES OF MILFORD AND WORCESTER  
409 PM EDT FRI AUG 21 2026  
 
TONIGHT SAT SAT NIGHT SUN  
 
CLOUD COVER MCLDY MCLDY MCLDY MCLDY  
PRECIP TYPE NONE SHOWERS SHOWERS TSTMS  
CHANCE PRECIP (%) 10 30 40 60  
CHANCE OF THUNDER (%) 0 0 0 30  
TEMP (24H TREND) 57 (-3) 73 (-1) 59 77  
RH % (24H TREND) 100 (0) 81 (+29) 100 79  
20FT WND AM(MPH) NE 5 LGT/VAR  
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.00 0.02 0.03 0.21  
PRECIP DURATION 2 1 6  
PRECIP BEGIN 6 AM CONTINUING CONTINUING  
PRECIP END CONTINUING CONTINUING CONTINUING  
MIXING HGT (FT-AGL) 420 2790 430 2370  
TRANSPORT WND (KTS) N 7 NE 10 NE 4 S 8  
VENT RATE (KT-FT) 2940 27900 1720 18960  
MAX ADI EARLY 35 FAIR 1 VERY POOR 11 POOR 15 GEN POOR  
MAX ADI LATE 6 VERY POOR 1 VERY POOR 3 VERY POOR 16 GEN POOR  
MAX LVORI EARLY 9 7 10 6  
MAX LVORI LATE 9 7 10 6  
MIN VSBY EARLY 10 10 9 4 FOG  
MIN VSBY LATE 10 9 5 FOG 4 FOG  
SUNSHINE HOURS N/A N/A N/A N/A  
CWR 0 10 40 50  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7  
   
SUNDAY NIGHT  
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS AROUND 60. SOUTHWEST WINDS AROUND 5 MPH.    
MONDAY  
SUNNY. HIGHS AROUND 80. SOUTHWEST WINDS 5 TO 10 MPH.    
MONDAY NIGHT  
CLEAR. LOWS IN THE MID 50S. WEST WINDS 5 TO  
10 MPH.    
TUESDAY THROUGH WEDNESDAY  
MOSTLY CLEAR. LOWS IN THE MID 50S.  
HIGHS IN THE UPPER 70S. WEST WINDS 5 TO 10 MPH.    
WEDNESDAY NIGHT  
PARTLY CLOUDY. LOWS AROUND 60. SOUTHWEST WINDS  
AROUND 5 MPH.    
THURSDAY  
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS AROUND  
80. SOUTH WINDS AROUND 5 MPH.    
THURSDAY NIGHT  
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN  
THE LOWER 60S. SOUTH WINDS AROUND 5 MPH.    
FRIDAY  
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE  
LOWER 80S. WEST WINDS AROUND 5 MPH.  
 
 
 
MAZ004-220800-  
NORTHERN WORCESTER MA-  
INCLUDING THE CITIES OF BARRE AND FITCHBURG  
409 PM EDT FRI AUG 21 2026  
 
TONIGHT SAT SAT NIGHT SUN  
 
CLOUD COVER PCLDY MCLDY MCLDY MCLDY  
PRECIP TYPE NONE SHOWERS SHOWERS TSTMS  
CHANCE PRECIP (%) 10 30 30 70  
CHANCE OF THUNDER (%) 0 0 0 30  
TEMP (24H TREND) 54 (-6) 72 (-2) 56 76  
RH % (24H TREND) 100 (0) 73 (+21) 100 76  
20FT WND AM(MPH) LGT/VAR LGT/VAR  
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.00 0.02 0.03 0.14  
PRECIP DURATION 1 1 4  
PRECIP BEGIN 8 AM CONTINUING CONTINUING  
PRECIP END CONTINUING CONTINUING CONTINUING  
MIXING HGT (FT-AGL) 410 2890 420 2250  
TRANSPORT WND (KTS) NE 6 NE 10 NE 4 S 8  
VENT RATE (KT-FT) 2460 28900 1680 18000  
MAX ADI EARLY 24 FAIR 1 VERY POOR 11 POOR 17 GEN POOR  
MAX ADI LATE 5 VERY POOR 1 VERY POOR 3 VERY POOR 17 GEN POOR  
MAX LVORI EARLY 9 6 10 6  
MAX LVORI LATE 9 6 10 6  
MIN VSBY EARLY 10 10 9 3 FOG  
MIN VSBY LATE 10 9 3 FOG 6 FOG  
SUNSHINE HOURS N/A N/A N/A N/A  
CWR 0 10 30 40  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7  
   
SUNDAY NIGHT  
MOSTLY CLOUDY WITH SHOWERS LIKELY AND A CHANCE OF  
THUNDERSTORMS. LOWS IN THE UPPER 50S. SOUTHWEST WINDS AROUND  
5 MPH.    
MONDAY THROUGH WEDNESDAY  
MOSTLY CLEAR. LOWS IN THE MID 50S.  
HIGHS IN THE UPPER 70S. WEST WINDS 5 TO 10 MPH.    
WEDNESDAY NIGHT  
PARTLY CLOUDY. LOWS IN THE UPPER 50S.  
SOUTHWEST WINDS AROUND 5 MPH.    
THURSDAY  
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE  
UPPER 70S. SOUTH WINDS AROUND 5 MPH.    
THURSDAY NIGHT  
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN  
THE LOWER 60S. SOUTH WINDS AROUND 5 MPH.    
FRIDAY  
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS AROUND 80.  
SOUTHWEST WINDS AROUND 5 MPH.  
 
 
 
MAZ026-220800-  
NORTHERN MIDDLESEX MA-  
INCLUDING THE CITY OF AYER  
409 PM EDT FRI AUG 21 2026  
 
TONIGHT SAT SAT NIGHT SUN  
 
CLOUD COVER PCLDY MCLDY MCLDY MCLDY  
PRECIP TYPE NONE SHOWERS SHOWERS TSTMS  
CHANCE PRECIP (%) 10 30 30 70  
CHANCE OF THUNDER (%) 0 0 0 30  
TEMP (24H TREND) 55 (-7) 74 (-2) 57 78  
RH % (24H TREND) 100 (0) 79 (+27) 100 76  
20FT WND AM(MPH) LGT/VAR LGT/VAR  
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.00 0.07 0.04 0.13  
PRECIP DURATION 2 1 5  
PRECIP BEGIN 8 AM CONTINUING CONTINUING  
PRECIP END CONTINUING CONTINUING CONTINUING  
MIXING HGT (FT-AGL) 410 2920 420 2430  
TRANSPORT WND (KTS) N 6 NE 10 E 4 SE 7  
VENT RATE (KT-FT) 2460 29200 1680 17010  
MAX ADI EARLY 35 FAIR 16 GEN POOR 12 POOR 18 GEN POOR  
MAX ADI LATE 4 VERY POOR 1 VERY POOR 2 VERY POOR 19 GEN POOR  
MAX LVORI EARLY 7 6 10 5  
MAX LVORI LATE 7 6 10 5  
MIN VSBY EARLY 10 10 6 FOG 6 FOG  
MIN VSBY LATE 10 6 FOG 4 FOG 6 FOG  
SUNSHINE HOURS N/A N/A N/A N/A  
CWR 0 20 30 40  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7  
   
SUNDAY NIGHT  
MOSTLY CLOUDY WITH SHOWERS LIKELY AND A CHANCE OF  
THUNDERSTORMS. LOWS IN THE UPPER 50S. SOUTHWEST WINDS AROUND  
5 MPH.    
MONDAY THROUGH WEDNESDAY  
MOSTLY CLEAR. LOWS 54 TO 59. HIGHS IN  
THE LOWER 80S. WEST WINDS 5 TO 10 MPH.    
WEDNESDAY NIGHT  
PARTLY CLOUDY. LOWS IN THE UPPER 50S.  
SOUTHWEST WINDS AROUND 5 MPH.    
THURSDAY AND THURSDAY NIGHT  
MOSTLY CLOUDY. A CHANCE OF  
SHOWERS. LOWS AROUND 60. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS  
AROUND 5 MPH.    
FRIDAY  
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE  
LOWER 80S. WEST WINDS AROUND 5 MPH.  
 
 
 
MAZ002-220800-  
WESTERN FRANKLIN MA-  
INCLUDING THE CITY OF CHARLEMONT  
409 PM EDT FRI AUG 21 2026  
 
TONIGHT SAT SAT NIGHT SUN  
 
CLOUD COVER PCLDY MCLDY MCLDY MCLDY  
PRECIP TYPE NONE SHOWERS SHOWERS TSTMS  
CHANCE PRECIP (%) 20 20 80  
CHANCE OF THUNDER (%) 0 0 0 30  
TEMP (24H TREND) 52 (-5) 72 (-2) 55 74  
RH % (24H TREND) 96 (-4) 71 (+14) 100 76  
20FT WND AM(MPH) LGT/VAR LGT/VAR  
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.00 0.00 0.02 0.07  
PRECIP DURATION 1 4  
PRECIP BEGIN 6 PM CONTINUING  
PRECIP END CONTINUING CONTINUING  
MIXING HGT (FT-AGL) 430 3500 420 2440  
TRANSPORT WND (KTS) N 4 E 7 E 5 S 8  
VENT RATE (KT-FT) 1720 24500 2100 19520  
MAX ADI EARLY 16 GEN POOR 20 GEN POOR 14 GEN POOR 15 GEN POOR  
MAX ADI LATE 3 VERY POOR 21 FAIR 3 VERY POOR 18 GEN POOR  
MAX LVORI EARLY 7 4 10 5  
MAX LVORI LATE 7 4 10 5  
MIN VSBY EARLY 10 10 10 3 FOG  
MIN VSBY LATE 10 10 3 FOG 6 FOG  
SUNSHINE HOURS N/A N/A N/A N/A  
CWR 0 10 20 40  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7  
   
SUNDAY NIGHT  
PARTLY CLOUDY WITH SHOWERS LIKELY AND A CHANCE OF  
THUNDERSTORMS. LOWS IN THE MID 50S. SOUTHWEST WINDS AROUND 5 MPH.   
MONDAY  
MOSTLY SUNNY. HIGHS IN THE MID 70S. WEST WINDS AROUND  
5 MPH.    
MONDAY NIGHT THROUGH WEDNESDAY  
MOSTLY CLEAR. LOWS IN THE LOWER  
50S. HIGHS IN THE MID 70S. WEST WINDS AROUND 5 MPH.    
WEDNESDAY NIGHT  
PARTLY CLOUDY. LOWS IN THE MID 50S. SOUTHWEST  
WINDS AROUND 5 MPH.    
THURSDAY THROUGH FRIDAY  
MOSTLY CLOUDY WITH A CHANCE OF  
SHOWERS. LOWS IN THE UPPER 50S. HIGHS IN THE UPPER 70S. WEST  
WINDS AROUND 5 MPH.  
 
 
 
MAZ003-220800-  
EASTERN FRANKLIN MA-  
INCLUDING THE CITIES OF GREENFIELD AND ORANGE  
409 PM EDT FRI AUG 21 2026  
 
TONIGHT SAT SAT NIGHT SUN  
 
CLOUD COVER PCLDY MCLDY MCLDY MCLDY  
PRECIP TYPE NONE SHOWERS SHOWERS TSTMS  
CHANCE PRECIP (%) 20 30 70  
CHANCE OF THUNDER (%) 0 0 0 30  
TEMP (24H TREND) 55 (-4) 75 (-1) 59 77  
RH % (24H TREND) 100 (0) 69 (+13) 100 74  
20FT WND AM(MPH) LGT/VAR LGT/VAR  
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.00 0.01 0.01 0.06  
PRECIP DURATION 1 1 4  
PRECIP BEGIN 11 AM CONTINUING CONTINUING  
PRECIP END CONTINUING CONTINUING CONTINUING  
MIXING HGT (FT-AGL) 420 3670 410 2640  
TRANSPORT WND (KTS) N 6 E 7 E 4 S 8  
VENT RATE (KT-FT) 2520 25690 1640 21120  
MAX ADI EARLY 18 GEN POOR 11 POOR 11 POOR 16 GEN POOR  
MAX ADI LATE 4 VERY POOR 4 VERY POOR 2 VERY POOR 16 GEN POOR  
MAX LVORI EARLY 9 4 10 6  
MAX LVORI LATE 9 4 10 6  
MIN VSBY EARLY 10 10 10 3 FOG  
MIN VSBY LATE 10 10 2 FOG 8  
SUNSHINE HOURS N/A N/A N/A N/A  
CWR 0 10 20 30  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7  
   
SUNDAY NIGHT  
MOSTLY CLOUDY WITH SHOWERS LIKELY AND A CHANCE OF  
THUNDERSTORMS. LOWS IN THE UPPER 50S. SOUTHWEST WINDS AROUND  
5 MPH.    
MONDAY THROUGH WEDNESDAY  
MOSTLY CLEAR. LOWS IN THE MID 50S.  
HIGHS IN THE UPPER 70S. SOUTHWEST WINDS 5 TO 10 MPH.    
WEDNESDAY NIGHT  
PARTLY CLOUDY. LOWS IN THE UPPER 50S. SOUTH  
WINDS AROUND 5 MPH.    
THURSDAY THROUGH FRIDAY  
MOSTLY CLOUDY WITH A CHANCE OF  
SHOWERS. LOWS AROUND 60. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS  
AROUND 5 MPH.  
 
 
 
MAZ008-220800-  
WESTERN HAMPSHIRE MA-  
INCLUDING THE CITY OF CHESTERFIELD  
409 PM EDT FRI AUG 21 2026  
 
TONIGHT SAT SAT NIGHT SUN  
 
CLOUD COVER PCLDY MCLDY MCLDY MCLDY  
PRECIP TYPE NONE SHOWERS SHOWERS TSTMS  
CHANCE PRECIP (%) 20 30 80  
CHANCE OF THUNDER (%) 0 0 0 30  
TEMP (24H TREND) 53 (-4) 73 (-1) 56 75  
RH % (24H TREND) 100 (+3) 74 (+15) 100 76  
20FT WND AM(MPH) LGT/VAR LGT/VAR  
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.00 0.01 0.02 0.08  
PRECIP DURATION 1 1 4  
PRECIP BEGIN 1 PM CONTINUING CONTINUING  
PRECIP END CONTINUING CONTINUING CONTINUING  
MIXING HGT (FT-AGL) 430 3410 420 2440  
TRANSPORT WND (KTS) NE 4 E 7 E 5 S 8  
VENT RATE (KT-FT) 1720 23870 2100 19520  
MAX ADI EARLY 23 FAIR 19 GEN POOR 14 GEN POOR 14 GEN POOR  
MAX ADI LATE 4 VERY POOR 20 GEN POOR 3 VERY POOR 15 GEN POOR  
MAX LVORI EARLY 7 6 10 6  
MAX LVORI LATE 7 6 10 6  
MIN VSBY EARLY 10 10 10 3 FOG  
MIN VSBY LATE 10 10 3 FOG 6 FOG  
SUNSHINE HOURS N/A N/A N/A N/A  
CWR 0 10 20 40  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7  
   
SUNDAY NIGHT  
PARTLY CLOUDY WITH SHOWERS LIKELY AND A CHANCE OF  
THUNDERSTORMS. LOWS IN THE MID 50S. SOUTHWEST WINDS AROUND 5 MPH.   
MONDAY THROUGH WEDNESDAY  
MOSTLY CLEAR. LOWS IN THE MID 50S.  
HIGHS IN THE MID 70S. WEST WINDS AROUND 5 MPH.    
WEDNESDAY NIGHT  
PARTLY CLOUDY. LOWS IN THE UPPER 50S.  
SOUTHWEST WINDS AROUND 5 MPH.    
THURSDAY THROUGH FRIDAY  
MOSTLY CLOUDY WITH A CHANCE OF  
SHOWERS. LOWS IN THE UPPER 50S. HIGHS IN THE UPPER 70S. WEST  
WINDS AROUND 5 MPH.  
 
 
 
MAZ010-220800-  
EASTERN HAMPSHIRE MA-  
INCLUDING THE CITIES OF AMHERST AND NORTHAMPTON  
409 PM EDT FRI AUG 21 2026  
 
TONIGHT SAT SAT NIGHT SUN  
 
CLOUD COVER PCLDY MCLDY MCLDY MCLDY  
PRECIP TYPE NONE SHOWERS SHOWERS TSTMS  
CHANCE PRECIP (%) 10 20 30 70  
CHANCE OF THUNDER (%) 0 0 0 30  
TEMP (24H TREND) 56 (-4) 76 (0) 59 78  
RH % (24H TREND) 100 (0) 74 (+14) 100 74  
20FT WND AM(MPH) LGT/VAR LGT/VAR  
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.00 0.01 0.02 0.08  
PRECIP DURATION 1 1 4  
PRECIP BEGIN 11 AM CONTINUING CONTINUING  
PRECIP END CONTINUING CONTINUING CONTINUING  
MIXING HGT (FT-AGL) 410 3490 400 2770  
TRANSPORT WND (KTS) N 6 NE 7 E 4 S 7  
VENT RATE (KT-FT) 2460 24430 1600 19390  
MAX ADI EARLY 19 GEN POOR 1 VERY POOR 7 POOR 14 GEN POOR  
MAX ADI LATE 5 VERY POOR 1 VERY POOR 2 VERY POOR 1 VERY POOR  
MAX LVORI EARLY 8 5 10 6  
MAX LVORI LATE 8 5 10 6  
MIN VSBY EARLY 10 10 10 3 FOG  
MIN VSBY LATE 10 10 3 FOG 8  
SUNSHINE HOURS N/A N/A N/A N/A  
CWR 0 10 30 40  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7  
   
SUNDAY NIGHT  
PARTLY CLOUDY WITH SHOWERS LIKELY AND A CHANCE OF  
THUNDERSTORMS. LOWS IN THE UPPER 50S. SOUTHWEST WINDS AROUND  
5 MPH.    
MONDAY THROUGH WEDNESDAY  
MOSTLY CLEAR. LOWS IN THE MID 50S.  
HIGHS AROUND 80. SOUTHWEST WINDS 5 TO 10 MPH.    
WEDNESDAY NIGHT  
PARTLY CLOUDY. LOWS IN THE UPPER 50S. SOUTH  
WINDS AROUND 5 MPH.    
THURSDAY THROUGH FRIDAY  
MOSTLY CLOUDY WITH A CHANCE OF  
SHOWERS. LOWS AROUND 60. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS  
AROUND 5 MPH.  
 
 
 
MAZ009-220800-  
WESTERN HAMPDEN MA-  
INCLUDING THE CITY OF BLANDFORD  
409 PM EDT FRI AUG 21 2026  
 
TONIGHT SAT SAT NIGHT SUN  
 
CLOUD COVER PCLDY MCLDY MCLDY MCLDY  
PRECIP TYPE NONE SHOWERS SHOWERS TSTMS  
CHANCE PRECIP (%) 20 30 80  
CHANCE OF THUNDER (%) 0 0 0 30  
TEMP (24H TREND) 54 (-4) 73 (-1) 58 75  
RH % (24H TREND) 100 (0) 78 (+14) 100 76  
20FT WND AM(MPH) LGT/VAR LGT/VAR  
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.00 0.01 0.04 0.08  
PRECIP DURATION 0 1 5  
PRECIP BEGIN 1 PM CONTINUING CONTINUING  
PRECIP END CONTINUING CONTINUING CONTINUING  
MIXING HGT (FT-AGL) 420 3230 420 2410  
TRANSPORT WND (KTS) N 7 E 7 E 5 S 8  
VENT RATE (KT-FT) 2940 22610 2100 19280  
MAX ADI EARLY 40 FAIR 9 POOR 15 GEN POOR 13 GEN POOR  
MAX ADI LATE 4 VERY POOR 19 GEN POOR 3 VERY POOR 14 GEN POOR  
MAX LVORI EARLY 9 6 10 6  
MAX LVORI LATE 9 6 10 6  
MIN VSBY EARLY 10 10 10 3 FOG  
MIN VSBY LATE 10 10 3 FOG 8  
SUNSHINE HOURS N/A N/A N/A N/A  
CWR 0 10 30 30  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7  
   
SUNDAY NIGHT  
PARTLY CLOUDY WITH SHOWERS LIKELY AND A CHANCE OF  
THUNDERSTORMS. LOWS IN THE UPPER 50S. SOUTHWEST WINDS AROUND  
5 MPH.    
MONDAY THROUGH WEDNESDAY  
MOSTLY CLEAR. LOWS IN THE MID 50S.  
HIGHS IN THE UPPER 70S. WEST WINDS AROUND 5 MPH.    
WEDNESDAY NIGHT  
PARTLY CLOUDY. LOWS IN THE UPPER 50S.  
SOUTHWEST WINDS AROUND 5 MPH.    
THURSDAY THROUGH FRIDAY  
MOSTLY CLOUDY WITH A CHANCE OF  
SHOWERS. LOWS AROUND 60. HIGHS AROUND 80. WEST WINDS AROUND  
5 MPH.  
 
 
 
MAZ011-220800-  
EASTERN HAMPDEN MA-  
INCLUDING THE CITY OF SPRINGFIELD  
409 PM EDT FRI AUG 21 2026  
 
TONIGHT SAT SAT NIGHT SUN  
 
CLOUD COVER PCLDY MCLDY MCLDY MCLDY  
PRECIP TYPE NONE SHOWERS SHOWERS TSTMS  
CHANCE PRECIP (%) 10 30 40 70  
CHANCE OF THUNDER (%) 0 0 0 30  
TEMP (24H TREND) 57 (-4) 76 (0) 59 79  
RH % (24H TREND) 100 (0) 71 (+11) 100 72  
20FT WND AM(MPH) LGT/VAR LGT/VAR  
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.00 0.01 0.03 0.09  
PRECIP DURATION 1 1 4  
PRECIP BEGIN 11 AM CONTINUING CONTINUING  
PRECIP END CONTINUING CONTINUING CONTINUING  
MIXING HGT (FT-AGL) 410 3300 420 2780  
TRANSPORT WND (KTS) N 6 NE 7 E 4 S 7  
VENT RATE (KT-FT) 2460 23100 1680 19460  
MAX ADI EARLY 21 FAIR 1 VERY POOR 8 POOR 12 POOR  
MAX ADI LATE 5 VERY POOR 1 VERY POOR 3 VERY POOR 1 VERY POOR  
MAX LVORI EARLY 8 6 10 6  
MAX LVORI LATE 8 6 10 6  
MIN VSBY EARLY 10 10 10 3 FOG  
MIN VSBY LATE 10 10 5 FOG 8  
SUNSHINE HOURS N/A N/A N/A N/A  
CWR 0 10 30 40  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7  
   
SUNDAY NIGHT  
PARTLY CLOUDY WITH SHOWERS LIKELY AND A CHANCE OF  
THUNDERSTORMS. LOWS IN THE UPPER 50S. SOUTHWEST WINDS AROUND  
5 MPH.    
MONDAY THROUGH WEDNESDAY  
MOSTLY CLEAR. LOWS 54 TO 59. HIGHS  
AROUND 80. SOUTHWEST WINDS 5 TO 10 MPH.    
WEDNESDAY NIGHT  
PARTLY CLOUDY. LOWS IN THE UPPER 50S. SOUTH  
WINDS AROUND 5 MPH.    
THURSDAY THROUGH FRIDAY  
MOSTLY CLOUDY WITH A CHANCE OF  
SHOWERS. LOWS IN THE LOWER 60S. HIGHS IN THE LOWER 80S. SOUTHWEST  
WINDS AROUND 5 MPH.  
 
 
 
CTZ002-220800-  
HARTFORD CT-  
INCLUDING THE CITIES OF HARTFORD AND WINDSOR LOCKS  
409 PM EDT FRI AUG 21 2026  
 
TONIGHT SAT SAT NIGHT SUN  
 
CLOUD COVER PCLDY MCLDY MCLDY MCLDY  
PRECIP TYPE NONE SHOWERS SHOWERS TSTMS  
CHANCE PRECIP (%) 10 20 40 70  
CHANCE OF THUNDER (%) 0 0 0 30  
TEMP (24H TREND) 57 (-4) 76 (0) 60 80  
RH % (24H TREND) 100 (0) 74 (+12) 100 72  
20FT WND AM(MPH) LGT/VAR LGT/VAR  
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.00 0.01 0.05 0.09  
PRECIP DURATION 0 1 5  
PRECIP BEGIN 1 PM CONTINUING CONTINUING  
PRECIP END CONTINUING CONTINUING CONTINUING  
MIXING HGT (FT-AGL) 410 2950 420 2810  
TRANSPORT WND (KTS) N 5 NE 6 E 5 S 8  
VENT RATE (KT-FT) 2050 17700 2100 22480  
MAX ADI EARLY 22 FAIR 1 VERY POOR 12 POOR 11 POOR  
MAX ADI LATE 5 VERY POOR 19 GEN POOR 3 VERY POOR 12 POOR  
MAX LVORI EARLY 9 5 10 5  
MAX LVORI LATE 9 5 10 5  
MIN VSBY EARLY 10 10 9 3 FOG  
MIN VSBY LATE 10 9 4 FOG 7  
SUNSHINE HOURS N/A N/A N/A N/A  
CWR 0 10 40 40  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7  
   
SUNDAY NIGHT  
PARTLY CLOUDY WITH SHOWERS LIKELY AND A CHANCE OF  
THUNDERSTORMS. LOWS IN THE UPPER 50S. SOUTHWEST WINDS AROUND  
5 MPH.    
MONDAY THROUGH WEDNESDAY  
MOSTLY CLEAR. LOWS IN THE UPPER 50S.  
HIGHS AROUND 80. SOUTHWEST WINDS 5 TO 10 MPH.    
WEDNESDAY NIGHT  
PARTLY CLOUDY. LOWS AROUND 60. SOUTH WINDS  
AROUND 5 MPH.    
THURSDAY THROUGH FRIDAY  
MOSTLY CLOUDY WITH A CHANCE OF  
SHOWERS. LOWS IN THE LOWER 60S. HIGHS IN THE LOWER 80S. SOUTHWEST  
WINDS AROUND 5 MPH.  
 
 
 
CTZ003-220800-  
TOLLAND CT-  
INCLUDING THE CITIES OF UNION AND VERNON  
409 PM EDT FRI AUG 21 2026  
 
TONIGHT SAT SAT NIGHT SUN  
 
CLOUD COVER PCLDY MCLDY MCLDY MCLDY  
PRECIP TYPE NONE SHOWERS SHOWERS TSTMS  
CHANCE PRECIP (%) 10 30 40 70  
CHANCE OF THUNDER (%) 0 0 0 30  
TEMP (24H TREND) 57 (-3) 74 (-1) 60 79  
RH % (24H TREND) 100 (0) 76 (+12) 100 74  
20FT WND AM(MPH) LGT/VAR LGT/VAR  
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.00 0.01 0.03 0.25  
PRECIP DURATION 1 1 6  
PRECIP BEGIN 11 AM CONTINUING CONTINUING  
PRECIP END CONTINUING CONTINUING CONTINUING  
MIXING HGT (FT-AGL) 420 2820 420 2640  
TRANSPORT WND (KTS) NE 6 NE 8 E 5 S 8  
VENT RATE (KT-FT) 2520 22560 2100 21120  
MAX ADI EARLY 22 FAIR 1 VERY POOR 12 POOR 14 GEN POOR  
MAX ADI LATE 5 VERY POOR 18 GEN POOR 3 VERY POOR 15 GEN POOR  
MAX LVORI EARLY 9 7 10 7  
MAX LVORI LATE 9 7 10 7  
MIN VSBY EARLY 10 10 10 3 FOG  
MIN VSBY LATE 10 10 3 FOG 3 FOG  
SUNSHINE HOURS N/A N/A N/A N/A  
CWR 0 10 40 50  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7  
   
SUNDAY NIGHT  
PARTLY CLOUDY WITH SHOWERS LIKELY AND A CHANCE OF  
THUNDERSTORMS. LOWS AROUND 60. SOUTHWEST WINDS AROUND 5 MPH.    
MONDAY THROUGH WEDNESDAY  
MOSTLY CLEAR. LOWS 55 TO 60. HIGHS IN  
THE UPPER 70S. SOUTHWEST WINDS 5 TO 10 MPH.    
WEDNESDAY NIGHT  
PARTLY CLOUDY. LOWS AROUND 60. SOUTH WINDS  
AROUND 5 MPH.    
THURSDAY THROUGH FRIDAY  
MOSTLY CLOUDY WITH A CHANCE OF  
SHOWERS. LOWS IN THE LOWER 60S. HIGHS IN THE LOWER 80S. SOUTHWEST  
WINDS AROUND 5 MPH.  
 
 
 
CTZ004-220800-  
WINDHAM CT-  
INCLUDING THE CITIES OF PUTNAM AND WILLIMANTIC  
409 PM EDT FRI AUG 21 2026  
 
TONIGHT SAT SAT NIGHT SUN  
 
CLOUD COVER MCLDY MCLDY MCLDY MCLDY  
PRECIP TYPE NONE SHOWERS SHOWERS TSTMS  
CHANCE PRECIP (%) 10 30 40 60  
CHANCE OF THUNDER (%) 0 0 0 30  
TEMP (24H TREND) 58 (-3) 74 (0) 60 78  
RH % (24H TREND) 100 (0) 84 (+26) 100 77  
20FT WND AM(MPH) LGT/VAR LGT/VAR  
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.00 0.02 0.04 0.22  
PRECIP DURATION 1 1 5  
PRECIP BEGIN 8 AM CONTINUING CONTINUING  
PRECIP END CONTINUING CONTINUING CONTINUING  
MIXING HGT (FT-AGL) 430 2730 420 2520  
TRANSPORT WND (KTS) NE 7 NE 8 E 5 S 9  
VENT RATE (KT-FT) 3010 21840 2100 22680  
MAX ADI EARLY 29 FAIR 1 VERY POOR 11 POOR 16 GEN POOR  
MAX ADI LATE 6 VERY POOR 2 VERY POOR 3 VERY POOR 2 VERY POOR  
MAX LVORI EARLY 9 7 10 8  
MAX LVORI LATE 9 7 10 8  
MIN VSBY EARLY 10 10 9 4 FOG  
MIN VSBY LATE 10 9 3 FOG 4 FOG  
SUNSHINE HOURS N/A N/A N/A N/A  
CWR 0 10 40 50  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7  
   
SUNDAY NIGHT  
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE LOWER 60S. SOUTHWEST WINDS AROUND  
5 MPH.    
MONDAY  
SUNNY. HIGHS AROUND 80. SOUTHWEST WINDS 5 TO 10 MPH.    
MONDAY NIGHT  
CLEAR. LOWS IN THE MID 50S. WEST WINDS AROUND  
5 MPH.    
TUESDAY THROUGH WEDNESDAY  
MOSTLY CLEAR. LOWS IN THE MID 50S.  
HIGHS AROUND 80. SOUTHWEST WINDS 5 TO 10 MPH.    
WEDNESDAY NIGHT  
PARTLY CLOUDY. LOWS AROUND 60. SOUTHWEST WINDS  
AROUND 5 MPH.    
THURSDAY  
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS AROUND  
80. SOUTH WINDS AROUND 5 MPH.    
THURSDAY NIGHT AND FRIDAY  
MOSTLY CLOUDY. A CHANCE OF SHOWERS.  
LOWS IN THE LOWER 60S. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS  
AROUND 5 MPH.  
 
 
 
RIZ001-220800-  
NORTHWEST PROVIDENCE RI-  
INCLUDING THE CITIES OF FOSTER AND SMITHFIELD  
409 PM EDT FRI AUG 21 2026  
 
TONIGHT SAT SAT NIGHT SUN  
 
CLOUD COVER MCLDY MCLDY MCLDY MCLDY  
PRECIP TYPE SHOWERS SHOWERS SHOWERS TSTMS  
CHANCE PRECIP (%) 20 30 40 60  
CHANCE OF THUNDER (%) 0 0 0 30  
TEMP (24H TREND) 59 (-2) 73 (0) 60 78  
RH % (24H TREND) 100 (0) 87 (+34) 100 76  
20FT WND AM(MPH) NE 5 LGT/VAR  
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.00 0.01 0.04 0.11  
PRECIP DURATION 2 1 4  
PRECIP BEGIN 6 AM CONTINUING CONTINUING  
PRECIP END CONTINUING CONTINUING 6 PM  
MIXING HGT (FT-AGL) 450 2400 430 2350  
TRANSPORT WND (KTS) NE 8 NE 9 E 4 S 9  
VENT RATE (KT-FT) 3600 21600 1720 21150  
MAX ADI EARLY 23 FAIR 1 VERY POOR 10 POOR 15 GEN POOR  
MAX ADI LATE 7 POOR 1 VERY POOR 2 VERY POOR 18 GEN POOR  
MAX LVORI EARLY 9 8 10 6  
MAX LVORI LATE 9 8 10 6  
MIN VSBY EARLY 10 10 10 4 FOG  
MIN VSBY LATE 10 10 5 FOG 5 FOG  
SUNSHINE HOURS N/A N/A N/A N/A  
CWR 10 10 40 50  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7  
   
SUNDAY NIGHT  
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE LOWER 60S. SOUTHWEST WINDS AROUND  
5 MPH.    
MONDAY THROUGH WEDNESDAY  
MOSTLY CLEAR. LOWS 56 TO 62. HIGHS IN  
THE UPPER 70S. SOUTHWEST WINDS 5 TO 10 MPH.    
WEDNESDAY NIGHT  
PARTLY CLOUDY. LOWS IN THE LOWER 60S.  
SOUTHWEST WINDS AROUND 5 MPH.    
THURSDAY THROUGH FRIDAY  
MOSTLY CLOUDY WITH A CHANCE OF  
SHOWERS. LOWS IN THE LOWER 60S. HIGHS IN THE LOWER 80S. SOUTHWEST  
WINDS AROUND 5 MPH.  
 
 
 
RIZ002-220800-  
SOUTHEAST PROVIDENCE RI-  
INCLUDING THE CITY OF PROVIDENCE  
409 PM EDT FRI AUG 21 2026  
 
TONIGHT SAT SAT NIGHT SUN  
 
CLOUD COVER MCLDY MCLDY MCLDY MCLDY  
PRECIP TYPE SHOWERS SHOWERS SHOWERS TSTMS  
CHANCE PRECIP (%) 20 30 40 60  
CHANCE OF THUNDER (%) 0 0 0 20  
TEMP (24H TREND) 60 (-3) 73 (0) 61 79  
RH % (24H TREND) 100 (0) 84 (+31) 100 79  
20FT WND AM(MPH) N 5 LGT/VAR  
20FT WND PM(MPH) NE 5 LGT/VAR LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.00 0.02 0.04 0.18  
PRECIP DURATION 2 1 3  
PRECIP BEGIN 6 AM CONTINUING CONTINUING  
PRECIP END CONTINUING CONTINUING 6 PM  
MIXING HGT (FT-AGL) 440 2460 430 2180  
TRANSPORT WND (KTS) N 8 NE 10 NE 4 SE 10  
VENT RATE (KT-FT) 3520 24600 1720 21800  
MAX ADI EARLY 20 GEN POOR 1 VERY POOR 10 POOR 14 GEN POOR  
MAX ADI LATE 8 POOR 1 VERY POOR 3 VERY POOR 1 VERY POOR  
MAX LVORI EARLY 9 8 10 7  
MAX LVORI LATE 9 8 10 7  
MIN VSBY EARLY 10 10 8 4 FOG  
MIN VSBY LATE 10 8 8 9  
SUNSHINE HOURS N/A N/A N/A N/A  
CWR 10 20 40 50  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7  
   
SUNDAY NIGHT  
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTHWEST  
WINDS AROUND 5 MPH.    
MONDAY  
SUNNY. HIGHS AROUND 80. SOUTHWEST WINDS 5 TO 10 MPH.    
MONDAY NIGHT  
CLEAR. LOWS IN THE UPPER 50S. SOUTHWEST WINDS  
5 TO 10 MPH.    
TUESDAY THROUGH WEDNESDAY  
MOSTLY CLEAR. LOWS IN THE UPPER 50S.  
HIGHS AROUND 80. SOUTHWEST WINDS 5 TO 10 MPH.    
WEDNESDAY NIGHT  
PARTLY CLOUDY. LOWS IN THE LOWER 60S.  
SOUTHWEST WINDS AROUND 5 MPH.    
THURSDAY THROUGH FRIDAY  
MOSTLY CLOUDY WITH A CHANCE OF  
SHOWERS. LOWS IN THE MID 60S. HIGHS IN THE LOWER 80S. SOUTHWEST  
WINDS 5 TO 10 MPH.  
 
 
 
RIZ003-220800-  
WESTERN KENT RI-  
INCLUDING THE CITIES OF COVENTRY AND WEST GREENWICH  
409 PM EDT FRI AUG 21 2026  
 
TONIGHT SAT SAT NIGHT SUN  
 
CLOUD COVER MCLDY MCLDY MCLDY MCLDY  
PRECIP TYPE SHOWERS SHOWERS SHOWERS TSTMS  
CHANCE PRECIP (%) 20 30 40 50  
CHANCE OF THUNDER (%) 0 0 0 20  
TEMP (24H TREND) 60 (-1) 73 (+1) 61 77  
RH % (24H TREND) 100 (0) 87 (+29) 100 79  
20FT WND AM(MPH) NE 6 LGT/VAR  
20FT WND PM(MPH) NE 5 LGT/VAR LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.00 0.01 0.05 0.09  
PRECIP DURATION 1 1 2  
PRECIP BEGIN 8 AM CONTINUING CONTINUING  
PRECIP END CONTINUING CONTINUING 6 PM  
MIXING HGT (FT-AGL) 440 2370 430 2210  
TRANSPORT WND (KTS) N 8 NE 9 E 5 SE 10  
VENT RATE (KT-FT) 3520 21330 2150 22100  
MAX ADI EARLY 18 GEN POOR 1 VERY POOR 12 POOR 15 GEN POOR  
MAX ADI LATE 8 POOR 18 GEN POOR 3 VERY POOR 1 VERY POOR  
MAX LVORI EARLY 9 8 10 8  
MAX LVORI LATE 9 8 10 8  
MIN VSBY EARLY 10 10 10 5 FOG  
MIN VSBY LATE 10 10 6 FOG 7  
SUNSHINE HOURS N/A N/A N/A N/A  
CWR 10 10 40 50  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7  
   
SUNDAY NIGHT  
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTHWEST  
WINDS AROUND 5 MPH.    
MONDAY  
SUNNY. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS 5 TO  
10 MPH.    
MONDAY NIGHT  
CLEAR. LOWS IN THE UPPER 50S. SOUTHWEST WINDS  
AROUND 5 MPH.    
TUESDAY THROUGH WEDNESDAY  
MOSTLY CLEAR. LOWS IN THE UPPER 50S.  
HIGHS IN THE UPPER 70S. SOUTHWEST WINDS 5 TO 10 MPH.    
WEDNESDAY NIGHT  
PARTLY CLOUDY. LOWS IN THE LOWER 60S.  
SOUTHWEST WINDS AROUND 5 MPH.    
THURSDAY THROUGH FRIDAY  
MOSTLY CLOUDY WITH A CHANCE OF  
SHOWERS. LOWS IN THE LOWER 60S. HIGHS IN THE UPPER 70S. SOUTHWEST  
WINDS 5 TO 10 MPH.  
 
 
 
RIZ004-220800-  
EASTERN KENT RI-  
INCLUDING THE CITIES OF EAST GREENWICH, WARWICK, AND WEST WARWICK  
409 PM EDT FRI AUG 21 2026  
 
TONIGHT SAT SAT NIGHT SUN  
 
CLOUD COVER MCLDY MCLDY MCLDY MCLDY  
PRECIP TYPE SHOWERS SHOWERS SHOWERS TSTMS  
CHANCE PRECIP (%) 20 30 40 60  
CHANCE OF THUNDER (%) 0 0 0 20  
TEMP (24H TREND) 61 (-2) 73 (0) 62 78  
RH % (24H TREND) 100 (0) 84 (+28) 100 77  
20FT WND AM(MPH) N 7 LGT/VAR  
20FT WND PM(MPH) NE 6 NE 5 LGT/VAR S 5  
PRECIP AMOUNT 0.01 0.00 0.04 0.28  
PRECIP DURATION 1 1 2  
PRECIP BEGIN 6 PM 6 PM CONTINUING  
PRECIP END 6 AM CONTINUING 6 PM  
MIXING HGT (FT-AGL) 470 2310 430 2250  
TRANSPORT WND (KTS) N 9 NE 10 E 5 SE 10  
VENT RATE (KT-FT) 4230 23100 2150 22500  
MAX ADI EARLY 20 GEN POOR 1 VERY POOR 3 VERY POOR 8 POOR  
MAX ADI LATE 10 POOR 1 VERY POOR 3 VERY POOR 1 VERY POOR  
MAX LVORI EARLY 8 7 10 7  
MAX LVORI LATE 8 7 10 7  
MIN VSBY EARLY 10 10 10 5 FOG  
MIN VSBY LATE 10 10 10 9  
SUNSHINE HOURS N/A N/A N/A N/A  
CWR 10 10 40 50  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7  
   
SUNDAY NIGHT  
MOSTLY CLOUDY. LOWS IN THE MID 60S. SOUTHWEST  
WINDS 5 TO 10 MPH.    
MONDAY  
SUNNY. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS 5 TO  
10 MPH.    
MONDAY NIGHT  
CLEAR. LOWS IN THE UPPER 50S. SOUTHWEST WINDS  
5 TO 10 MPH.    
TUESDAY THROUGH WEDNESDAY  
MOSTLY CLEAR. LOWS IN THE UPPER 50S.  
HIGHS IN THE UPPER 70S. SOUTHWEST WINDS 5 TO 10 MPH.    
WEDNESDAY NIGHT  
PARTLY CLOUDY. LOWS IN THE LOWER 60S.  
SOUTHWEST WINDS 5 TO 10 MPH.    
THURSDAY THROUGH FRIDAY  
MOSTLY CLOUDY WITH A CHANCE OF  
SHOWERS. LOWS IN THE MID 60S. HIGHS AROUND 80. SOUTHWEST WINDS  
5 TO 10 MPH.  
 
 
 
RIZ005-220800-  
BRISTOL RI-  
INCLUDING THE CITY OF BRISTOL  
409 PM EDT FRI AUG 21 2026  
 
TONIGHT SAT SAT NIGHT SUN  
 
CLOUD COVER MCLDY MCLDY MCLDY MCLDY  
PRECIP TYPE SHOWERS SHOWERS SHOWERS TSTMS  
CHANCE PRECIP (%) 30 30 40 60  
CHANCE OF THUNDER (%) 0 0 0 20  
TEMP (24H TREND) 62 (-3) 73 (0) 63 77  
RH % (24H TREND) 100 (0) 90 (+28) 100 85  
20FT WND AM(MPH) NE 7 LGT/VAR  
20FT WND PM(MPH) NE 7 NE 5 LGT/VAR S 6  
PRECIP AMOUNT 0.00 0.00 0.05 0.31  
PRECIP DURATION 1 2  
PRECIP BEGIN 6 PM CONTINUING  
PRECIP END CONTINUING 5 PM  
MIXING HGT (FT-AGL) 460 2230 430 2180  
TRANSPORT WND (KTS) N 10 NE 11 E 6 SE 11  
VENT RATE (KT-FT) 4600 24530 2580 23980  
MAX ADI EARLY 17 GEN POOR 1 VERY POOR 5 VERY POOR 8 POOR  
MAX ADI LATE 11 POOR 1 VERY POOR 3 VERY POOR 1 VERY POOR  
MAX LVORI EARLY 7 8 10 8  
MAX LVORI LATE 7 8 10 8  
MIN VSBY EARLY 10 10 10 5 FOG  
MIN VSBY LATE 10 10 6 FOG 9  
SUNSHINE HOURS N/A N/A N/A N/A  
CWR 10 10 40 60  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7  
   
SUNDAY NIGHT  
MOSTLY CLOUDY. LOWS IN THE MID 60S. SOUTHWEST  
WINDS 5 TO 10 MPH.    
MONDAY  
SUNNY. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS 5 TO  
10 MPH.    
MONDAY NIGHT AND TUESDAY  
CLEAR. LOWS IN THE LOWER 60S. HIGHS  
IN THE UPPER 70S. WEST WINDS 5 TO 10 MPH.    
TUESDAY NIGHT AND WEDNESDAY  
MOSTLY CLEAR. LOWS IN THE LOWER  
60S. HIGHS AROUND 80. SOUTHWEST WINDS 5 TO 10 MPH.    
WEDNESDAY NIGHT  
PARTLY CLOUDY. LOWS IN THE MID 60S. SOUTHWEST  
WINDS 5 TO 10 MPH.    
THURSDAY THROUGH FRIDAY  
MOSTLY CLOUDY WITH A CHANCE OF  
SHOWERS. LOWS IN THE MID 60S. HIGHS AROUND 80. SOUTHWEST WINDS  
5 TO 10 MPH.  
 
 
 
RIZ006-220800-  
WASHINGTON RI-  
INCLUDING THE CITIES OF NARRAGANSETT AND WESTERLY  
409 PM EDT FRI AUG 21 2026  
 
TONIGHT SAT SAT NIGHT SUN  
 
CLOUD COVER MCLDY MCLDY MCLDY MCLDY  
PRECIP TYPE SHOWERS SHOWERS SHOWERS TSTMS  
CHANCE PRECIP (%) 20 30 40 60  
CHANCE OF THUNDER (%) 0 0 0 20  
TEMP (24H TREND) 60 (-4) 73 (0) 62 77  
RH % (24H TREND) 100 (0) 84 (+22) 100 77  
20FT WND AM(MPH) NE 7 LGT/VAR  
20FT WND PM(MPH) NE 7 G17 LGT/VAR LGT/VAR S 6  
PRECIP AMOUNT 0.00 0.00 0.07 0.18  
PRECIP DURATION 1 2  
PRECIP BEGIN 6 PM CONTINUING  
PRECIP END CONTINUING 4 PM  
MIXING HGT (FT-AGL) 430 2400 430 2260  
TRANSPORT WND (KTS) NE 11 NE 8 NE 5 S 10  
VENT RATE (KT-FT) 4730 19200 2150 22600  
MAX ADI EARLY 20 GEN POOR 23 FAIR 12 POOR 8 POOR  
MAX ADI LATE 10 POOR 21 FAIR 4 VERY POOR 8 POOR  
MAX LVORI EARLY 8 5 10 8  
MAX LVORI LATE 8 5 10 8  
MIN VSBY EARLY 10 10 10 5 FOG  
MIN VSBY LATE 10 10 5 FOG 9  
SUNSHINE HOURS N/A N/A N/A N/A  
CWR 10 10 30 30  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7  
   
SUNDAY NIGHT  
MOSTLY CLOUDY. LOWS IN THE MID 60S. SOUTHWEST  
WINDS 5 TO 10 MPH.    
MONDAY  
SUNNY. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS 10 TO  
15 MPH.    
MONDAY NIGHT AND TUESDAY  
CLEAR. LOWS IN THE UPPER 50S. HIGHS  
IN THE MID 70S. WEST WINDS 10 TO 15 MPH.    
TUESDAY NIGHT  
MOSTLY CLEAR. LOWS IN THE UPPER 50S. WEST WINDS  
5 TO 10 MPH.    
WEDNESDAY  
SUNNY. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS 5 TO  
10 MPH.    
WEDNESDAY NIGHT  
PARTLY CLOUDY. LOWS IN THE LOWER 60S.  
SOUTHWEST WINDS 5 TO 10 MPH.    
THURSDAY THROUGH FRIDAY  
MOSTLY CLOUDY WITH A CHANCE OF  
SHOWERS. LOWS IN THE MID 60S. HIGHS IN THE UPPER 70S. SOUTHWEST  
WINDS 5 TO 10 MPH.  
 
 
 
RIZ007-220800-  
NEWPORT RI-  
INCLUDING THE CITY OF NEWPORT  
409 PM EDT FRI AUG 21 2026  
 
TONIGHT SAT SAT NIGHT SUN  
 
CLOUD COVER MCLDY MCLDY MCLDY MCLDY  
PRECIP TYPE SHOWERS SHOWERS SHOWERS TSTMS  
CHANCE PRECIP (%) 30 30 40 60  
CHANCE OF THUNDER (%) 0 0 0 20  
TEMP (24H TREND) 63 (-3) 73 (+1) 64 78  
RH % (24H TREND) 100 (0) 84 (+28) 100 82  
20FT WND AM(MPH) N 8 LGT/VAR  
20FT WND PM(MPH) NE 9 NE 6 LGT/VAR S 7  
PRECIP AMOUNT 0.02 0.00 0.08 0.17  
PRECIP DURATION 2 1 2  
PRECIP BEGIN 6 PM 6 PM CONTINUING  
PRECIP END 6 AM CONTINUING 2 PM  
MIXING HGT (FT-AGL) 590 2040 430 2010  
TRANSPORT WND (KTS) NE 12 NE 10 E 6 S 10  
VENT RATE (KT-FT) 7080 20400 2580 20100  
MAX ADI EARLY 13 GEN POOR 3 VERY POOR 14 GEN POOR 1 VERY POOR  
MAX ADI LATE 12 POOR 21 FAIR 5 VERY POOR 1 VERY POOR  
MAX LVORI EARLY 6 5 10 8  
MAX LVORI LATE 6 5 10 8  
MIN VSBY EARLY 10 10 10 4 FOG  
MIN VSBY LATE 10 10 4 FOG 9  
SUNSHINE HOURS N/A N/A N/A N/A  
CWR 20 10 30 40  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7  
   
SUNDAY NIGHT  
MOSTLY CLOUDY. LOWS IN THE UPPER 60S. SOUTHWEST  
WINDS 5 TO 10 MPH.    
MONDAY  
SUNNY. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS 10 TO  
15 MPH.    
MONDAY NIGHT AND TUESDAY  
CLEAR. LOWS IN THE LOWER 60S. HIGHS  
IN THE MID 70S. SOUTHWEST WINDS 10 TO 15 MPH.    
TUESDAY NIGHT  
MOSTLY CLEAR. LOWS IN THE LOWER 60S. WEST WINDS  
10 TO 15 MPH, DIMINISHING TO AROUND 5 MPH AFTER MIDNIGHT.    
WEDNESDAY  
SUNNY. HIGHS IN THE UPPER 70S. WEST WINDS AROUND  
5 MPH, BECOMING SOUTHWEST 10 TO 15 MPH IN THE AFTERNOON.    
WEDNESDAY NIGHT  
PARTLY CLOUDY. LOWS IN THE MID 60S. SOUTHWEST  
WINDS 5 TO 10 MPH.    
THURSDAY THROUGH FRIDAY  
MOSTLY CLOUDY WITH A CHANCE OF  
SHOWERS. LOWS IN THE UPPER 60S. HIGHS IN THE UPPER 70S. SOUTHWEST  
WINDS 5 TO 10 MPH.  
 
 
 
RIZ008-220800-  
BLOCK ISLAND RI-  
INCLUDING THE CITY OF NEW SHOREHAM  
409 PM EDT FRI AUG 21 2026  
 
TONIGHT SAT SAT NIGHT SUN  
 
CLOUD COVER MCLDY MCLDY MCLDY MCLDY  
PRECIP TYPE SHOWERS SHOWERS TSTMS TSTMS  
CHANCE PRECIP (%) 30 30 50 70  
CHANCE OF THUNDER (%) 0 0 20 20  
TEMP (24H TREND) 66 (+1) 74 (+2) 68 76  
RH % (24H TREND) 100 (0) 82 (+3) 100 85  
20FT WND AM(MPH) NE 10 E 7  
20FT WND PM(MPH) NE 12 G19 NE 6 LGT/VAR S 7  
PRECIP AMOUNT 0.02 0.00 0.10 0.15  
PRECIP DURATION 1 1 2  
PRECIP BEGIN 6 PM 6 PM CONTINUING  
PRECIP END 2 AM CONTINUING 2 PM  
MIXING HGT (FT-AGL) 1300 1770 1120 1360  
TRANSPORT WND (KTS) NE 17 NE 15 E 8 SE 10  
VENT RATE (KT-FT) 22100 26550 8960 13600  
MAX ADI EARLY 25 FAIR 25 FAIR 10 POOR 22 FAIR  
MAX ADI LATE 20 GEN POOR 18 GEN POOR 8 POOR 18 GEN POOR  
MAX LVORI EARLY 5 5 8 5  
MAX LVORI LATE 5 5 8 5  
MIN VSBY EARLY 10 10 10 5 FOG  
MIN VSBY LATE 10 10 6 FOG 9  
SUNSHINE HOURS N/A N/A N/A N/A  
CWR 10 10 30 40  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7  
   
SUNDAY NIGHT  
MOSTLY CLOUDY. LOWS IN THE UPPER 60S. SOUTHWEST  
WINDS 5 TO 10 MPH.    
MONDAY  
SUNNY. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS 5 TO  
10 MPH.    
MONDAY NIGHT AND TUESDAY  
CLEAR. LOWS IN THE UPPER 60S. HIGHS  
IN THE MID 70S. WEST WINDS 10 TO 15 MPH.    
TUESDAY NIGHT  
MOSTLY CLEAR. LOWS IN THE UPPER 60S. WEST WINDS  
5 TO 10 MPH.    
WEDNESDAY  
SUNNY. HIGHS IN THE MID 70S. SOUTHWEST WINDS 5 TO  
10 MPH.    
WEDNESDAY NIGHT  
PARTLY CLOUDY. LOWS IN THE UPPER 60S.  
SOUTHWEST WINDS 5 TO 10 MPH.    
THURSDAY AND THURSDAY NIGHT  
MOSTLY CLOUDY. A CHANCE OF  
SHOWERS. LOWS AROUND 70. HIGHS IN THE MID 70S. SOUTHWEST WINDS  
5 TO 10 MPH.    
FRIDAY  
MOSTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE  
UPPER 70S. SOUTHWEST WINDS 5 TO 10 MPH.  
 
 
 
MAZ017-220800-  
NORTHERN BRISTOL MA-  
INCLUDING THE CITY OF TAUNTON  
409 PM EDT FRI AUG 21 2026  
 
TONIGHT SAT SAT NIGHT SUN  
 
CLOUD COVER MCLDY MCLDY MCLDY MCLDY  
PRECIP TYPE SHOWERS SHOWERS SHOWERS TSTMS  
CHANCE PRECIP (%) 20 30 40 60  
CHANCE OF THUNDER (%) 0 0 0 20  
TEMP (24H TREND) 60 (-3) 73 (0) 60 79  
RH % (24H TREND) 100 (0) 87 (+34) 100 77  
20FT WND AM(MPH) NE 5 LGT/VAR  
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.00 0.00 0.04 0.21  
PRECIP DURATION 1 3  
PRECIP BEGIN 6 PM CONTINUING  
PRECIP END CONTINUING 6 PM  
MIXING HGT (FT-AGL) 430 2290 420 2190  
TRANSPORT WND (KTS) NE 9 NE 11 E 5 SE 10  
VENT RATE (KT-FT) 3870 25190 2100 21900  
MAX ADI EARLY 19 GEN POOR 1 VERY POOR 10 POOR 15 GEN POOR  
MAX ADI LATE 8 POOR 1 VERY POOR 3 VERY POOR 1 VERY POOR  
MAX LVORI EARLY 9 8 10 7  
MAX LVORI LATE 9 8 10 7  
MIN VSBY EARLY 10 10 8 3 FOG  
MIN VSBY LATE 10 10 3 FOG 8  
SUNSHINE HOURS N/A N/A N/A N/A  
CWR 10 10 40 50  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7  
   
SUNDAY NIGHT  
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTHWEST  
WINDS AROUND 5 MPH.    
MONDAY THROUGH WEDNESDAY  
MOSTLY CLEAR. LOWS 57 TO 63. HIGHS  
AROUND 80. SOUTHWEST WINDS 5 TO 10 MPH.    
WEDNESDAY NIGHT  
PARTLY CLOUDY. LOWS IN THE LOWER 60S.  
SOUTHWEST WINDS AROUND 5 MPH.    
THURSDAY THROUGH FRIDAY  
MOSTLY CLOUDY WITH A CHANCE OF  
SHOWERS. LOWS IN THE LOWER 60S. HIGHS IN THE LOWER 80S. SOUTHWEST  
WINDS 5 TO 10 MPH.  
 
 
 
MAZ018-220800-  
WESTERN PLYMOUTH MA-  
INCLUDING THE CITY OF BROCKTON  
409 PM EDT FRI AUG 21 2026  
 
TONIGHT SAT SAT NIGHT SUN  
 
CLOUD COVER MCLDY MCLDY MCLDY MCLDY  
PRECIP TYPE SHOWERS SHOWERS SHOWERS TSTMS  
CHANCE PRECIP (%) 30 30 40 60  
CHANCE OF THUNDER (%) 0 0 0 20  
TEMP (24H TREND) 60 (-4) 73 (+1) 60 79  
RH % (24H TREND) 100 (0) 87 (+34) 100 77  
20FT WND AM(MPH) NE 6 LGT/VAR  
20FT WND PM(MPH) LGT/VAR NE 5 LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.01 0.00 0.09 0.28  
PRECIP DURATION 2 1 3  
PRECIP BEGIN 6 PM 6 PM CONTINUING  
PRECIP END 6 AM CONTINUING 5 PM  
MIXING HGT (FT-AGL) 420 2020 410 2310  
TRANSPORT WND (KTS) NE 10 NE 12 NE 3 S 10  
VENT RATE (KT-FT) 4200 24240 1230 23100  
MAX ADI EARLY 8 POOR 1 VERY POOR 11 POOR 13 GEN POOR  
MAX ADI LATE 8 POOR 1 VERY POOR 3 VERY POOR 1 VERY POOR  
MAX LVORI EARLY 9 9 10 8  
MAX LVORI LATE 9 9 10 8  
MIN VSBY EARLY 10 10 7 3 FOG  
MIN VSBY LATE 10 10 3 FOG 9  
SUNSHINE HOURS N/A N/A N/A N/A  
CWR 10 10 40 50  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7  
   
SUNDAY NIGHT  
MOSTLY CLOUDY. LOWS IN THE MID 60S. SOUTHWEST  
WINDS AROUND 5 MPH.    
MONDAY THROUGH WEDNESDAY  
MOSTLY CLEAR. LOWS 57 TO 64. HIGHS  
AROUND 80. SOUTHWEST WINDS 5 TO 10 MPH.    
WEDNESDAY NIGHT  
PARTLY CLOUDY. LOWS IN THE LOWER 60S.  
SOUTHWEST WINDS AROUND 5 MPH.    
THURSDAY THROUGH FRIDAY  
MOSTLY CLOUDY WITH A CHANCE OF  
SHOWERS. LOWS IN THE LOWER 60S. HIGHS IN THE LOWER 80S. SOUTHWEST  
WINDS 5 TO 10 MPH.  
 
 
 
MAZ019-220800-  
EASTERN PLYMOUTH MA-  
INCLUDING THE CITY OF PLYMOUTH  
409 PM EDT FRI AUG 21 2026  
 
TONIGHT SAT SAT NIGHT SUN  
 
CLOUD COVER MCLDY MCLDY MCLDY MCLDY  
PRECIP TYPE SHOWERS SHOWERS SHOWERS TSTMS  
CHANCE PRECIP (%) 30 40 40 60  
CHANCE OF THUNDER (%) 0 0 0 20  
TEMP (24H TREND) 61 (-4) 72 (+2) 61 78  
RH % (24H TREND) 100 (0) 84 (+28) 100 74  
20FT WND AM(MPH) NE 8 LGT/VAR  
20FT WND PM(MPH) NE 5 NE 7 LGT/VAR SE 5  
PRECIP AMOUNT 0.02 0.01 0.08 0.19  
PRECIP DURATION 2 2 1 2  
PRECIP BEGIN 6 PM CONTINUING CONTINUING CONTINUING  
PRECIP END CONTINUING CONTINUING CONTINUING 6 PM  
MIXING HGT (FT-AGL) 570 1610 540 1980  
TRANSPORT WND (KTS) NE 11 NE 13 N 4 S 9  
VENT RATE (KT-FT) 6270 20930 2160 17820  
MAX ADI EARLY 9 POOR 1 VERY POOR 4 VERY POOR 11 POOR  
MAX ADI LATE 12 POOR 1 VERY POOR 3 VERY POOR 1 VERY POOR  
MAX LVORI EARLY 7 9 10 8  
MAX LVORI LATE 7 9 10 8  
MIN VSBY EARLY 10 10 6 FOG 3 FOG  
MIN VSBY LATE 10 10 3 FOG 9  
SUNSHINE HOURS N/A N/A N/A N/A  
CWR 10 10 40 50  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7  
   
SUNDAY NIGHT  
MOSTLY CLOUDY. LOWS IN THE MID 60S. SOUTHWEST  
WINDS 5 TO 10 MPH.    
MONDAY THROUGH WEDNESDAY  
MOSTLY CLEAR. LOWS 60 TO 66. HIGHS  
AROUND 80. SOUTHWEST WINDS 5 TO 10 MPH.    
WEDNESDAY NIGHT  
PARTLY CLOUDY. LOWS IN THE MID 60S. SOUTHWEST  
WINDS 5 TO 10 MPH.    
THURSDAY THROUGH FRIDAY  
MOSTLY CLOUDY WITH A CHANCE OF  
SHOWERS. LOWS IN THE MID 60S. HIGHS AROUND 80. SOUTH WINDS 5 TO  
10 MPH.  
 
 
 
MAZ020-220800-  
SOUTHERN BRISTOL MA-  
INCLUDING THE CITIES OF FALL RIVER AND NEW BEDFORD  
409 PM EDT FRI AUG 21 2026  
 
TONIGHT SAT SAT NIGHT SUN  
 
CLOUD COVER MCLDY MCLDY MCLDY MCLDY  
PRECIP TYPE SHOWERS SHOWERS SHOWERS TSTMS  
CHANCE PRECIP (%) 30 30 40 60  
CHANCE OF THUNDER (%) 0 0 0 20  
TEMP (24H TREND) 61 (-4) 74 (+2) 61 79  
RH % (24H TREND) 100 (0) 84 (+30) 100 82  
20FT WND AM(MPH) NE 7 LGT/VAR  
20FT WND PM(MPH) NE 7 G17 NE 6 LGT/VAR S 6  
PRECIP AMOUNT 0.03 0.01 0.09 0.26  
PRECIP DURATION 2 2 1 2  
PRECIP BEGIN 6 PM CONTINUING CONTINUING CONTINUING  
PRECIP END CONTINUING CONTINUING CONTINUING 2 PM  
MIXING HGT (FT-AGL) 420 2130 410 2320  
TRANSPORT WND (KTS) N 11 NE 11 NE 4 S 11  
VENT RATE (KT-FT) 4620 23430 1640 25520  
MAX ADI EARLY 20 GEN POOR 1 VERY POOR 10 POOR 15 GEN POOR  
MAX ADI LATE 11 POOR 1 VERY POOR 3 VERY POOR 1 VERY POOR  
MAX LVORI EARLY 8 8 10 7  
MAX LVORI LATE 8 8 10 7  
MIN VSBY EARLY 10 10 10 3 FOG  
MIN VSBY LATE 10 10 3 FOG 9  
SUNSHINE HOURS N/A N/A N/A N/A  
CWR 20 10 40 50  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7  
   
SUNDAY NIGHT  
MOSTLY CLOUDY. LOWS IN THE MID 60S. SOUTHWEST  
WINDS 5 TO 10 MPH.    
MONDAY  
SUNNY. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS 10 TO  
15 MPH.    
MONDAY NIGHT AND TUESDAY  
CLEAR. LOWS AROUND 60. HIGHS IN THE  
UPPER 70S. SOUTHWEST WINDS 10 TO 15 MPH.    
TUESDAY NIGHT AND WEDNESDAY  
MOSTLY CLEAR. LOWS IN THE LOWER  
60S. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS 10 TO 15 MPH.    
WEDNESDAY NIGHT  
PARTLY CLOUDY. LOWS IN THE MID 60S. SOUTHWEST  
WINDS 10 TO 15 MPH, DIMINISHING TO AROUND 5 MPH AFTER MIDNIGHT.    
THURSDAY THROUGH FRIDAY  
MOSTLY CLOUDY WITH A CHANCE OF  
SHOWERS. LOWS IN THE MID 60S. HIGHS IN THE UPPER 70S. SOUTHWEST  
WINDS 5 TO 10 MPH.  
 
 
 
MAZ021-220800-  
SOUTHERN PLYMOUTH MA-  
INCLUDING THE CITY OF MATTAPOISETT  
409 PM EDT FRI AUG 21 2026  
 
TONIGHT SAT SAT NIGHT SUN  
 
CLOUD COVER MCLDY MCLDY MCLDY MCLDY  
PRECIP TYPE SHOWERS SHOWERS SHOWERS TSTMS  
CHANCE PRECIP (%) 40 30 40 60  
CHANCE OF THUNDER (%) 0 0 0 20  
TEMP (24H TREND) 61 (-5) 74 (+2) 62 79  
RH % (24H TREND) 100 (0) 87 (+31) 100 79  
20FT WND AM(MPH) NE 7 LGT/VAR  
20FT WND PM(MPH) NE 6 NE 5 LGT/VAR S 6  
PRECIP AMOUNT 0.04 0.01 0.08 0.31  
PRECIP DURATION 2 2 1 2  
PRECIP BEGIN 6 PM CONTINUING CONTINUING CONTINUING  
PRECIP END CONTINUING CONTINUING CONTINUING 4 PM  
MIXING HGT (FT-AGL) 420 1950 430 2330  
TRANSPORT WND (KTS) NE 11 N 12 NE 5 S 10  
VENT RATE (KT-FT) 4620 23400 2150 23300  
MAX ADI EARLY 22 FAIR 1 VERY POOR 10 POOR 16 GEN POOR  
MAX ADI LATE 12 POOR 1 VERY POOR 3 VERY POOR 25 FAIR  
MAX LVORI EARLY 8 8 10 7  
MAX LVORI LATE 8 8 10 7  
MIN VSBY EARLY 9 10 10 3 FOG  
MIN VSBY LATE 10 10 3 FOG 9  
SUNSHINE HOURS N/A N/A N/A N/A  
CWR 20 10 40 60  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7  
   
SUNDAY NIGHT  
MOSTLY CLOUDY. LOWS IN THE MID 60S. SOUTHWEST  
WINDS 5 TO 10 MPH.    
MONDAY AND MONDAY NIGHT  
MOSTLY CLEAR. LOWS 61 TO 66. HIGHS  
AROUND 80. WEST WINDS 10 TO 15 MPH.    
TUESDAY  
SUNNY. HIGHS IN THE UPPER 70S. WEST WINDS 10 TO  
15 MPH.    
TUESDAY NIGHT AND WEDNESDAY  
MOSTLY CLEAR. LOWS IN THE LOWER  
60S. HIGHS AROUND 80. SOUTHWEST WINDS 10 TO 15 MPH.    
WEDNESDAY NIGHT  
PARTLY CLOUDY. LOWS IN THE MID 60S. SOUTHWEST  
WINDS 5 TO 10 MPH.    
THURSDAY THROUGH FRIDAY  
MOSTLY CLOUDY WITH A CHANCE OF  
SHOWERS. LOWS IN THE MID 60S. HIGHS AROUND 80. SOUTHWEST WINDS  
5 TO 10 MPH.  
 
 
 
MAZ022-220800-  
BARNSTABLE MA-  
INCLUDING THE CITIES OF CHATHAM, FALMOUTH, AND PROVINCETOWN  
409 PM EDT FRI AUG 21 2026  
 
TONIGHT SAT SAT NIGHT SUN  
 
CLOUD COVER CLOUDY MCLDY MCLDY MCLDY  
PRECIP TYPE SHOWERS SHOWERS SHOWERS TSTMS  
CHANCE PRECIP (%) 50 30 40 70  
CHANCE OF THUNDER (%) 0 0 0 20  
TEMP (24H TREND) 63 (-3) 74 (+3) 65 78  
RH % (24H TREND) 100 (0) 84 (+22) 100 77  
20FT WND AM(MPH) NE 8 LGT/VAR  
20FT WND PM(MPH) NE 7 N 6 LGT/VAR S 7  
PRECIP AMOUNT 0.07 0.01 0.11 0.30  
PRECIP DURATION 2 2 1 4  
PRECIP BEGIN 6 PM CONTINUING CONTINUING CONTINUING  
PRECIP END CONTINUING CONTINUING CONTINUING 5 PM  
MIXING HGT (FT-AGL) 610 1650 620 2150  
TRANSPORT WND (KTS) NE 15 NE 12 W 4 SW 13  
VENT RATE (KT-FT) 9150 19800 2480 27950  
MAX ADI EARLY 25 FAIR 1 VERY POOR 5 VERY POOR 10 POOR  
MAX ADI LATE 16 GEN POOR 1 VERY POOR 4 VERY POOR 1 VERY POOR  
MAX LVORI EARLY 6 9 10 8  
MAX LVORI LATE 6 9 10 8  
MIN VSBY EARLY 7 10 3 FOG 3 FOG  
MIN VSBY LATE 10 10 3 FOG 9  
SUNSHINE HOURS N/A N/A N/A N/A  
CWR 30 10 40 60  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7  
   
SUNDAY NIGHT  
MOSTLY CLOUDY. LOWS IN THE UPPER 60S. SOUTHWEST  
WINDS 5 TO 10 MPH.    
MONDAY AND MONDAY NIGHT  
MOSTLY CLEAR. LOWS IN THE UPPER 60S.  
HIGHS IN THE UPPER 70S. WEST WINDS 10 TO 15 MPH.    
TUESDAY  
SUNNY. HIGHS IN THE UPPER 70S. WEST WINDS 10 TO  
15 MPH.    
TUESDAY NIGHT AND WEDNESDAY  
MOSTLY CLEAR. LOWS IN THE MID 60S.  
HIGHS IN THE UPPER 70S. SOUTHWEST WINDS 10 TO 15 MPH.    
WEDNESDAY NIGHT  
PARTLY CLOUDY. LOWS IN THE UPPER 60S.  
SOUTHWEST WINDS 5 TO 10 MPH.    
THURSDAY THROUGH FRIDAY  
MOSTLY CLOUDY WITH A CHANCE OF  
SHOWERS. LOWS IN THE UPPER 60S. HIGHS IN THE UPPER 70S. SOUTHWEST  
WINDS 5 TO 10 MPH.  
 
 
 
MAZ023-220800-  
DUKES MA-  
INCLUDING THE CITY OF VINEYARD HAVEN  
409 PM EDT FRI AUG 21 2026  
 
TONIGHT SAT SAT NIGHT SUN  
 
CLOUD COVER MCLDY MCLDY MCLDY MCLDY  
PRECIP TYPE SHOWERS SHOWERS SHOWERS TSTMS  
CHANCE PRECIP (%) 50 30 50 70  
CHANCE OF THUNDER (%) 0 0 0 20  
TEMP (24H TREND) 63 (-5) 76 (+4) 64 78  
RH % (24H TREND) 100 (0) 82 (+13) 100 79  
20FT WND AM(MPH) NE 10 SE 5  
20FT WND PM(MPH) NE 11 G19 N 7 LGT/VAR S 7  
PRECIP AMOUNT 0.04 0.00 0.20 0.38  
PRECIP DURATION 2 2 3  
PRECIP BEGIN 6 PM 6 PM CONTINUING  
PRECIP END 6 AM CONTINUING 5 PM  
MIXING HGT (FT-AGL) 1320 1840 800 1790  
TRANSPORT WND (KTS) NE 20 N 9 SE 8 S 13  
VENT RATE (KT-FT) 26400 16560 6400 23270  
MAX ADI EARLY 26 FAIR 1 VERY POOR 15 GEN POOR 1 VERY POOR  
MAX ADI LATE 24 FAIR 21 FAIR 6 VERY POOR 26 FAIR  
MAX LVORI EARLY 5 5 10 7  
MAX LVORI LATE 5 5 10 7  
MIN VSBY EARLY 7 10 10 3 FOG  
MIN VSBY LATE 10 10 5 FOG 9  
SUNSHINE HOURS N/A N/A N/A N/A  
CWR 30 10 40 60  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7  
   
SUNDAY NIGHT  
MOSTLY CLOUDY. LOWS IN THE UPPER 60S. SOUTHWEST  
WINDS 5 TO 10 MPH.    
MONDAY AND MONDAY NIGHT  
MOSTLY CLEAR. LOWS IN THE UPPER 60S.  
HIGHS IN THE UPPER 70S. WEST WINDS 10 TO 15 MPH.    
TUESDAY  
SUNNY. HIGHS IN THE MID 70S. WEST WINDS 15 TO 20 MPH.    
TUESDAY NIGHT AND WEDNESDAY  
MOSTLY CLEAR. LOWS IN THE MID 60S.  
HIGHS IN THE UPPER 70S. SOUTHWEST WINDS 10 TO 15 MPH.    
WEDNESDAY NIGHT  
PARTLY CLOUDY. LOWS IN THE UPPER 60S.  
SOUTHWEST WINDS 10 TO 15 MPH.    
THURSDAY THROUGH FRIDAY  
MOSTLY CLOUDY WITH A CHANCE OF  
SHOWERS. LOWS IN THE UPPER 60S. HIGHS IN THE UPPER 70S. SOUTHWEST  
WINDS 5 TO 10 MPH.  
 
 
 
MAZ024-220800-  
NANTUCKET MA-  
INCLUDING THE CITY OF NANTUCKET  
409 PM EDT FRI AUG 21 2026  
 
TONIGHT SAT SAT NIGHT SUN  
 
CLOUD COVER CLOUDY MCLDY MCLDY MCLDY  
PRECIP TYPE SHOWERS SHOWERS TSTMS TSTMS  
CHANCE PRECIP (%) 60 20 60 80  
CHANCE OF THUNDER (%) 0 0 20 20  
TEMP (24H TREND) 64 (-4) 75 (+3) 65 76  
RH % (24H TREND) 100 (0) 82 (0) 100 82  
20FT WND AM(MPH) NE 10 SE 7  
20FT WND PM(MPH) NE 11 G18 N 7 LGT/VAR S 8  
PRECIP AMOUNT 0.08 0.02 0.13 0.26  
PRECIP DURATION 3 1 2 6  
PRECIP BEGIN 6 PM CONTINUING CONTINUING CONTINUING  
PRECIP END CONTINUING CONTINUING CONTINUING CONTINUING  
MIXING HGT (FT-AGL) 1150 1520 830 1180  
TRANSPORT WND (KTS) NE 19 NW 9 SE 6 S 12  
VENT RATE (KT-FT) 21850 13680 4980 14160  
MAX ADI EARLY 30 FAIR 16 GEN POOR 12 POOR 1 VERY POOR  
MAX ADI LATE 28 FAIR 17 GEN POOR 6 VERY POOR 20 GEN POOR  
MAX LVORI EARLY 5 5 9 7  
MAX LVORI LATE 5 5 9 7  
MIN VSBY EARLY 7 10 5 FOG 3 FOG  
MIN VSBY LATE 10 10 3 FOG 6 FOG  
SUNSHINE HOURS N/A N/A N/A N/A  
CWR 30 10 50 60  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7  
   
SUNDAY NIGHT  
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN  
THE UPPER 60S. SOUTHWEST WINDS 5 TO 10 MPH.    
MONDAY AND MONDAY NIGHT  
MOSTLY CLEAR. LOWS IN THE UPPER 60S.  
HIGHS IN THE MID 70S. SOUTHWEST WINDS 10 TO 15 MPH.    
TUESDAY  
SUNNY. HIGHS IN THE MID 70S. WEST WINDS 10 TO 15 MPH.    
TUESDAY NIGHT AND WEDNESDAY  
MOSTLY CLEAR. LOWS IN THE UPPER  
60S. HIGHS IN THE MID 70S. SOUTHWEST WINDS 10 TO 15 MPH.    
WEDNESDAY NIGHT  
PARTLY CLOUDY. LOWS IN THE UPPER 60S.  
SOUTHWEST WINDS 10 TO 15 MPH.    
THURSDAY THROUGH FRIDAY  
MOSTLY CLOUDY WITH A CHANCE OF  
SHOWERS. LOWS IN THE UPPER 60S. HIGHS IN THE UPPER 70S. SOUTHWEST  
WINDS 5 TO 10 MPH.  
 
 
   
OUTLOOK 8 TO 14 DAYS  
 
TEMPERATURES ABOVE NORMAL. PRECIPITATION ABOVE NORMAL.  
 
 
 
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