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Harwich, Massachusetts Weather Forecast
Harwich, Massachusetts Weather
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Weather Forecast for Harwich, Massachusetts : Barnstable County
Issued: 6:44 pm EST Dec 7, 2025 Latitude: 41.6862224 Longitude: -70.0758508 View on Google Maps

MouseOver for Detail Forecast
Tonight Monday Tuesday Wednesday Thursday Friday Saturday Sunday
Mostly Clear on Tonight Mostly Sunny on Monday Increasing Clouds on Tuesday 40% chance of rain on Wednesday Partly Sunny on Thursday 40% chance of rain & snow on Friday 40% chance of rain & snow on Saturday 30% chance of snow on Sunday
Low: 22°F High: 31°F High: 43°F High: 50°F High: 44°F High: 39°F High: 38°F High: 34°F
Low: 18°F Low: 31°F Low: 35°F Low: 26°F Low: 26°F Low: 21°F  
Mostly Clear Mostly Sunny Increasing Clouds Rain Partly Sunny Rain & Snow Rain & Snow Snow
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Current Conditions at
CHATHAM - (KCQX)
39°
Cloudy
as of 8:52 PM EST
Rel. Humidity: 69%
Dew Point: 30°F
Visibility: 10 Miles
Pressure: 29.96 in.
Flight Rule: VFR
Wind Data
5 MPH
220° Southwest
Cloud Level(s): Solid Overcast at 4100ft
Current Conditions at
HYANNIS - (KHYA)
34°
Cloudy
as of 8:56 PM EST
Rel. Humidity: 80%
Dew Point: 28°F
Visibility: 10 Miles
Pressure: 29.95 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Solid Overcast at 3800ft
Current Conditions at
COAST GUARD AIR STA - (KFMH)
34°
Cloudy
as of 8:45 PM EST
Rel. Humidity: 80%
Dew Point: 28°F
Visibility: 10 Miles
Pressure: 29.99 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Solid Overcast at 3600ft
Mostly Clear on Tonight Tonight... Mostly cloudy, then gradually becoming mostly clear, with a low around 22. West wind 6 to 10 mph, with gusts as high as 25 mph.
Mostly Sunny on Monday Monday... Mostly sunny, with a high near 31. North wind 11 to 15 mph, with gusts as high as 29 mph.
Mostly Cloudy on Monday Night Monday Night... Mostly cloudy, with a low around 18. North wind 6 to 8 mph.
Increasing Clouds on Tuesday Tuesday... Increasing clouds, with a high near 43. Light and variable wind becoming southwest 5 to 7 mph in the morning.
40% chance of rain & snow Tuesday Night Tuesday Night... A slight chance of snow before 8pm, then a chance of rain. Cloudy, with a low around 31. South wind around 9 mph, with gusts as high as 22 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
40% chance of rain Wednesday Wednesday... A chance of rain, mainly after 1pm. Mostly cloudy, with a high near 50. Southwest wind 9 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 40%.
40% chance of rain Wednesday Night Wednesday Night... A chance of rain before 4am. Mostly cloudy, with a low around 35. Southwest wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
Partly Sunny on Thursday Thursday... Partly sunny, with a high near 44. West wind around 11 mph, with gusts as high as 22 mph.
Mostly Cloudy on Thursday Night Thursday Night... Mostly cloudy, with a low around 26. West wind 6 to 8 mph, with gusts as high as 20 mph.
40% chance of rain & snow Friday Friday... A chance of snow before 9am, then a chance of rain. Partly sunny, with a high near 39. West wind 6 to 10 mph. Chance of precipitation is 40%.
40% chance of rain & snow Friday Night Friday Night... A chance of rain and snow. Mostly cloudy, with a low around 26. West wind around 8 mph. Chance of precipitation is 40%.
40% chance of rain & snow Saturday Saturday... A chance of rain and snow. Partly sunny, with a high near 38. Northwest wind 9 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.
40% chance of snow Saturday Night Saturday Night... A chance of snow. Mostly cloudy, with a low around 21. West wind around 11 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
30% chance of snow Sunday Sunday... A chance of snow. Partly sunny, with a high near 34. West wind 11 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.
Sun Almanac for Harwich, Massachusetts
Sunrise: 06:54 AM
Sunset: 4:10 PM
Civil Sunrise:06:23 AM
Civil Sunset: 4:41 PM
Nautical Sunrise: 05:48 AM
Nautical Sunset: 5:16 PM
Astro Sunrise: 05:14 AM
Astro Sunset: 5:49 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.