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.

Fog

62°F

17°C

Humidity 100%
Wind Speed Calm
Barometer 30.11 in (1019.8 mb)
Dewpoint 62°F (17°C)
Visibility 0.25 mi
Last update 14 Jul 6:52 am EDT
Extended Forecast for

Harwich Port MA

  • Today

    Today: Patchy fog before 11am. Otherwise, partly sunny, with a high near 77. Calm wind becoming south 5 to 9 mph in the morning.

    High: 77 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tonight

    Tonight: Patchy fog before 2am, then patchy fog after 3am. Otherwise, increasing clouds, with a low around 69. Southwest wind around 7 mph.

    Low: 69 °F

    Partly Cloudy
    then Patchy
    Fog

  • Tuesday

    Tuesday: A chance of showers and thunderstorms before 8am, then a slight chance of showers between 8am and 2pm. Mostly cloudy, with a high near 80. Southwest wind 7 to 10 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 80 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 71. Southwest wind around 7 mph.

    Low: 71 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 82. Southwest wind 6 to 10 mph.

    High: 82 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 72. Southwest wind around 8 mph.

    Low: 72 °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 8 to 10 mph.

    Low: 72 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 84. Southwest wind 8 to 11 mph.

    High: 84 °F

    Mostly Sunny

Detailed Forecast

Today
Patchy fog before 11am. Otherwise, partly sunny, with a high near 77. Calm wind becoming south 5 to 9 mph in the morning.
Tonight
Patchy fog before 2am, then patchy fog after 3am. Otherwise, increasing clouds, with a low around 69. Southwest wind around 7 mph.
Tuesday
A chance of showers and thunderstorms before 8am, then a slight chance of showers between 8am and 2pm. Mostly cloudy, with a high near 80. Southwest wind 7 to 10 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Mostly cloudy, with a low around 71. Southwest wind around 7 mph.
Wednesday
Mostly sunny, with a high near 82. Southwest wind 6 to 10 mph.
Wednesday Night
Mostly cloudy, with a low around 72. 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 8 to 10 mph.
Friday
Mostly sunny, with a high near 84. Southwest wind 8 to 11 mph.
Friday Night
Mostly cloudy, with a low around 69. Southwest wind around 7 mph becoming northwest after midnight.
Saturday
Mostly sunny, with a high near 79. North wind 7 to 9 mph.
Saturday Night
Partly cloudy, with a low around 68. East wind around 5 mph becoming southwest after midnight.
Sunday
Mostly sunny, with a high near 79. South wind 6 to 9 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:
6:28 am EDT Jul 14, 2025
Forecast Valid:
7am EDT Jul 14, 2025-6pm EDT Jul 20, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation