South Harwich, Massachusetts Weather
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Weather Forecast for South Harwich, Massachusetts : Barnstable County
Issued: 2:33 pm EDT Jul 2, 2025 Latitude: 41.6751117 Longitude: -70.0439056 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Thursday Independence Day Saturday Sunday Monday Tuesday Wednesday
20% chance of thunderstorms on This Afternoon Fog on Tonight Mostly Cloudy on Thursday Sunny on Independence Day Sunny on Saturday Mostly Sunny on Sunday Sunny on Monday Partly Sunny on Tuesday 20% chance of on Wednesday
High: 78°F Low: 66°F High: 82°F High: 78°F High: 79°F High: 80°F High: 81°F High: 80°F High: 78°F
Low: 64°F Low: 65°F Low: 68°F Low: 69°F Low: 70°F Low: 68°F  
Thunderstorms Fog Mostly Cloudy Sunny Sunny Mostly Sunny Sunny Partly Sunny Partly Sunny
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Current Conditions at
CHATHAM - (KCQX)
75°
Partly Cloudy
as of 3:52 PM EDST
Rel. Humidity: 88%
Dew Point: 72°F
Visibility: 10 Miles
Pressure: 29.84 in.
Flight Rule: VFR
Wind Data
8 MPH
230° Southwest
Cloud Level(s): Scattered at 11000ft
Current Conditions at
HYANNIS - (KHYA)
77°
Clear
as of 3:56 PM EDST
Rel. Humidity: 78%
Dew Point: 70°F
Visibility: 10 Miles
Pressure: 29.82 in.
Flight Rule: VFR
Wind Data
17 MPH
Gust: 22 MPH
220° Southwest
Cloud Level(s): Clear
Current Conditions at
PROVINCETOWN - (KPVC)
77°
Clear
as of 3:56 PM EDST
Rel. Humidity: 83%
Dew Point: 72°F
Visibility: 10 Miles
Pressure: 29.82 in.
Flight Rule: VFR
Wind Data
13 MPH
200° South
Cloud Level(s): Clear
Current Conditions at
COAST GUARD AIR STA - (KFMH)
79°
Clear
as of 3:45 PM EDST
Rel. Humidity: 74%
Dew Point: 70°F
Visibility: 10 Miles
Pressure: 29.86 in.
Flight Rule: VFR
Wind Data
16 MPH
230° Southwest
Cloud Level(s): Clear
20% chance of thunderstorms This Afternoon This Afternoon... A slight chance of showers and thunderstorms. Cloudy, with a high near 78. Southwest wind around 8 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Fog on Tonight Tonight... Areas of fog after 9pm. Otherwise, cloudy, with a low around 66. Southwest wind 3 to 7 mph.
Mostly Cloudy on Thursday Thursday... Mostly cloudy, then gradually becoming sunny, with a high near 82. Southwest wind 5 to 9 mph.
30% chance of thunderstorms Thursday Night Thursday Night... A chance of showers and thunderstorms, mainly before 10pm. Partly cloudy, with a low around 64. West wind 3 to 7 mph. Winds could gust as high as 20 mph. Chance of precipitation is 30%.
Sunny on Independence Day Independence Day... Sunny, with a high near 78. Northwest wind 6 to 8 mph becoming northeast in the afternoon.
Mostly Clear on Friday Night Friday Night... Mostly clear, with a low around 65. South wind around 5 mph becoming northwest after midnight.
Sunny on Saturday Saturday... Sunny, with a high near 79. Northwest wind 5 to 7 mph becoming south in the afternoon.
Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 68. Southwest wind around 8 mph.
Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 80. Southwest wind 9 to 14 mph.
Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 69. Southwest wind around 11 mph, with gusts as high as 21 mph.
Sunny on Monday Monday... Sunny, with a high near 81. Southwest wind 10 to 14 mph.
Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 70. Southwest wind around 11 mph.
Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 80. South wind 9 to 11 mph.
30% chance of rain Tuesday Night Tuesday Night... A chance of showers. Mostly cloudy, with a low around 68. South wind 6 to 8 mph. Chance of precipitation is 30%.
20% chance of Wednesday Wednesday... A chance of showers. Partly sunny, with a high near 78.
Current Radar Image


Sun Almanac for South Harwich, Massachusetts
Sunrise: 05:10 AM
Sunset: 8:18 PM
Civil Sunrise:04:36 AM
Civil Sunset: 8:52 PM
Nautical Sunrise: 03:53 AM
Nautical Sunset: 9:36 PM
Astro Sunrise: 03:01 AM
Astro Sunset: 10:27 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.