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.

Overcast

68°F

20°C

Humidity 81%
Wind Speed Vrbl 5 mph
Barometer 30.14 in (1020.6 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 13 Jul 3:52 pm EDT
Extended Forecast for

Harwich Port MA

  • Tonight

    Tonight: Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 66. Southeast wind 5 to 7 mph becoming calm after midnight.

    Low: 66 °F

    Patchy Fog

  • Monday

    Monday: Partly sunny, with a high near 78. Southeast wind 3 to 8 mph.

    High: 78 °F

    Partly Sunny

  • Monday Night

    Monday Night: A slight chance of showers before 9pm, then a slight chance of showers and thunderstorms after 5am. Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 70. Southwest wind around 6 mph. Chance of precipitation is 20%.

    Low: 70 °F

    Slight Chance
    Showers then
    Patchy Fog

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms before 8am, then a slight chance of showers between 8am and 10am. Mostly cloudy, with a high near 81. Southwest wind 7 to 10 mph. Chance of precipitation is 20%.

    High: 81 °F

    Slight Chance
    T-storms then
    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 70. Southwest wind around 7 mph.

    Low: 70 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 83. Southwest wind 6 to 10 mph.

    High: 83 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 71. Southwest wind around 8 mph.

    Low: 71 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 83. Southwest wind 8 to 13 mph.

    High: 83 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 72. Southwest wind around 10 mph.

    Low: 72 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 66. Southeast wind 5 to 7 mph becoming calm after midnight.
Monday
Partly sunny, with a high near 78. Southeast wind 3 to 8 mph.
Monday Night
A slight chance of showers before 9pm, then a slight chance of showers and thunderstorms after 5am. Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 70. Southwest wind around 6 mph. Chance of precipitation is 20%.
Tuesday
A slight chance of showers and thunderstorms before 8am, then a slight chance of showers between 8am and 10am. Mostly cloudy, with a high near 81. Southwest wind 7 to 10 mph. Chance of precipitation is 20%.
Tuesday Night
Mostly cloudy, with a low around 70. Southwest wind around 7 mph.
Wednesday
Mostly sunny, with a high near 83. Southwest wind 6 to 10 mph.
Wednesday Night
Mostly cloudy, with a low around 71. Southwest wind around 8 mph.
Thursday
Partly sunny, with a high near 83. Southwest wind 8 to 13 mph.
Thursday Night
Mostly cloudy, with a low around 72. Southwest wind around 10 mph.
Friday
Mostly sunny, with a high near 84. Southwest wind 9 to 11 mph.
Friday Night
A chance of showers. Mostly cloudy, with a low around 70. Southwest wind around 8 mph. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 81. North wind 7 to 9 mph.
Saturday Night
Mostly cloudy, with a low around 68. South wind around 6 mph becoming northwest after midnight.
Sunday
Partly sunny, with a high near 80. North wind 6 to 9 mph becoming southeast in the afternoon.
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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:
3:59 pm EDT Jul 13, 2025
Forecast Valid:
4pm EDT Jul 13, 2025-6pm EDT Jul 20, 2025
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation