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

64°F

18°C

Humidity 58%
Wind Speed W 8 mph
Barometer 29.59 in (1002.0 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Last update 20 Jun 4:52 am EDT
Extended Forecast for

Northwest Harwich MA

  • Today

    Today: Sunny, with a high near 85. West wind 10 to 14 mph, with gusts as high as 26 mph.

    High: 85 °F

    Sunny

  • Tonight

    Tonight: A slight chance of showers before 10pm. Mostly clear, with a low around 65. West wind 3 to 6 mph. Chance of precipitation is 20%.

    Low: 65 °F

    Slight Chance
    Showers then
    Clear

  • Sunday

    Sunday: Sunny, with a high near 84. Southwest wind 5 to 9 mph.

    High: 84 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 66. Southwest wind around 5 mph becoming calm in the evening.

    Low: 66 °F

    Mostly Clear

  • Monday

    Monday: Showers likely, mainly after 5pm. Partly sunny, with a high near 84. Calm wind becoming south 5 to 9 mph in the afternoon. Chance of precipitation is 60%.

    High: 84 °F

    Chance
    Showers then
    Showers
    Likely

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm. Low around 67. South wind 10 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 100%.

    Low: 67 °F

    Showers

  • Tuesday

    Tuesday: A chance of showers before 1pm. Partly sunny, with a high near 84. Southwest wind 7 to 9 mph becoming northwest in the afternoon. Chance of precipitation is 40%.

    High: 84 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 67. Light west wind.

    Low: 67 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 80. Light and variable wind becoming east around 6 mph in the morning.

    High: 80 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 85. West wind 10 to 14 mph, with gusts as high as 26 mph.
Tonight
A slight chance of showers before 10pm. Mostly clear, with a low around 65. West wind 3 to 6 mph. Chance of precipitation is 20%.
Sunday
Sunny, with a high near 84. Southwest wind 5 to 9 mph.
Sunday Night
Mostly clear, with a low around 66. Southwest wind around 5 mph becoming calm in the evening.
Monday
Showers likely, mainly after 5pm. Partly sunny, with a high near 84. Calm wind becoming south 5 to 9 mph in the afternoon. Chance of precipitation is 60%.
Monday Night
Showers and possibly a thunderstorm. Low around 67. South wind 10 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 100%.
Tuesday
A chance of showers before 1pm. Partly sunny, with a high near 84. Southwest wind 7 to 9 mph becoming northwest in the afternoon. Chance of precipitation is 40%.
Tuesday Night
Partly cloudy, with a low around 67. Light west wind.
Wednesday
Sunny, with a high near 80. Light and variable wind becoming east around 6 mph in the morning.
Wednesday Night
Mostly clear, with a low around 67. Light south wind.
Thursday
Sunny, with a high near 80. Calm wind becoming south 5 to 8 mph in the morning.
Thursday Night
Partly cloudy, with a low around 67. South wind 3 to 5 mph.
Friday
Partly sunny, with a high near 80. Southeast wind 3 to 8 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Northwest Harwich MA
 41.7°N 70.13°W (Elev. 36 ft)
Last Update:
4:30 am EDT Jun 20, 2026
Forecast Valid:
5am EDT Jun 20, 2026-6pm EDT Jun 26, 2026
 
Forecast Discussion
 
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Additional Resources

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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