National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Chatham, Chatham Municipal Airport (KCQX)

Lat: 41.69°NLon: 69.99°WElev: 66ft.

Fair

78°F

26°C

Humidity 71%
Wind Speed SW 8 G 25 mph
Barometer 29.87 in (1011.5 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 17 Aug 3:52 pm EDT
Extended Forecast for

Harwich Port MA

  • Tonight

    Tonight: A chance of showers, mainly before 3am. Mostly cloudy, with a low around 62. Southwest wind 13 to 16 mph becoming north after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 62 °F

    Chance
    Showers

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 72. Breezy, with a northeast wind 16 to 20 mph, with gusts as high as 30 mph.

    High: 72 °F

    Partly Sunny
    and Breezy
    then Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 54. Northeast wind 10 to 13 mph.

    Low: 54 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 75. East wind around 10 mph.

    High: 75 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 61. East wind 6 to 8 mph.

    Low: 61 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of showers, mainly after 2pm. Partly sunny, with a high near 76. East wind 9 to 11 mph. Chance of precipitation is 30%.

    High: 76 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers. Mostly cloudy, with a low around 62. East wind around 10 mph. Chance of precipitation is 30%.

    Low: 62 °F

    Chance
    Showers

  • Thursday

    Thursday: Mostly sunny, with a high near 77. Northeast wind 13 to 16 mph.

    High: 77 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 62. North wind around 14 mph.

    Low: 62 °F

    Mostly Clear

Detailed Forecast

Tonight
A chance of showers, mainly before 3am. Mostly cloudy, with a low around 62. Southwest wind 13 to 16 mph becoming north after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 72. Breezy, with a northeast wind 16 to 20 mph, with gusts as high as 30 mph.
Monday Night
Partly cloudy, with a low around 54. Northeast wind 10 to 13 mph.
Tuesday
Mostly sunny, with a high near 75. East wind around 10 mph.
Tuesday Night
Mostly cloudy, with a low around 61. East wind 6 to 8 mph.
Wednesday
A chance of showers, mainly after 2pm. Partly sunny, with a high near 76. East wind 9 to 11 mph. Chance of precipitation is 30%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 62. East wind around 10 mph. Chance of precipitation is 30%.
Thursday
Mostly sunny, with a high near 77. Northeast wind 13 to 16 mph.
Thursday Night
Mostly clear, with a low around 62. North wind around 14 mph.
Friday
Sunny, with a high near 80. North wind around 14 mph.
Friday Night
Mostly clear, with a low around 65. West wind around 9 mph.
Saturday
Sunny, with a high near 79. South wind 9 to 14 mph.
Saturday Night
Partly cloudy, with a low around 65. South wind around 11 mph.
Sunday
Mostly sunny, with a high near 79. South wind 10 to 14 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Harwich Port MA
 41.67°N 70.08°W (Elev. 10 ft)
Last Update:
10:34 am EDT Aug 17, 2025
Forecast Valid:
4pm EDT Aug 17, 2025-6pm EDT Aug 24, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation