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

69°F

21°C

Humidity 96%
Wind Speed Calm
Barometer 29.88 in (1011.9 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 19 Aug 2:52 am EDT
Extended Forecast for

East Harwich MA

  • Overnight

    Overnight: Partly cloudy, with a low around 68. Light southwest wind.

    Low: 68 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 78. Southwest wind 6 to 13 mph.

    High: 78 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Patchy fog after 3am. Otherwise, partly cloudy, with a low around 71. Southwest wind 6 to 8 mph.

    Low: 71 °F

    Partly Cloudy
    then Patchy
    Fog

  • Thursday

    Thursday: A chance of showers, mainly between 11am and 3pm. Patchy fog before 10am. Otherwise, mostly sunny, with a high near 78. Southwest wind 3 to 7 mph. Chance of precipitation is 30%.

    High: 78 °F

    Chance
    Showers and
    Patchy Fog

  • Thursday Night

    Thursday Night: A slight chance of showers between 8pm and 2am. Mostly cloudy, with a low around 68. Light and variable wind. Chance of precipitation is 20%.

    Low: 68 °F

    Slight Chance
    Showers

  • Friday

    Friday: Partly sunny, with a high near 74. Northeast wind 7 to 9 mph.

    High: 74 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 66. Northeast wind 3 to 5 mph.

    Low: 66 °F

    Partly Cloudy

  • Saturday

    Saturday: A chance of showers. Partly sunny, with a high near 74. East wind 8 to 10 mph. Chance of precipitation is 50%.

    High: 74 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Showers likely, mainly before midnight. Mostly cloudy, with a low around 66. Southeast wind 5 to 7 mph. Chance of precipitation is 60%.

    Low: 66 °F

    Showers
    Likely

Detailed Forecast

Overnight
Partly cloudy, with a low around 68. Light southwest wind.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 78. Southwest wind 6 to 13 mph.
Wednesday Night
Patchy fog after 3am. Otherwise, partly cloudy, with a low around 71. Southwest wind 6 to 8 mph.
Thursday
A chance of showers, mainly between 11am and 3pm. Patchy fog before 10am. Otherwise, mostly sunny, with a high near 78. Southwest wind 3 to 7 mph. Chance of precipitation is 30%.
Thursday Night
A slight chance of showers between 8pm and 2am. Mostly cloudy, with a low around 68. Light and variable wind. Chance of precipitation is 20%.
Friday
Partly sunny, with a high near 74. Northeast wind 7 to 9 mph.
Friday Night
Partly cloudy, with a low around 66. Northeast wind 3 to 5 mph.
Saturday
A chance of showers. Partly sunny, with a high near 74. East wind 8 to 10 mph. Chance of precipitation is 50%.
Saturday Night
Showers likely, mainly before midnight. Mostly cloudy, with a low around 66. Southeast wind 5 to 7 mph. Chance of precipitation is 60%.
Sunday
A chance of showers. Mostly cloudy, with a high near 81. Southeast wind 6 to 10 mph becoming south in the afternoon. Chance of precipitation is 40%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 67. Southwest wind 5 to 7 mph. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 82. Southwest wind 7 to 10 mph.
Monday Night
Partly cloudy, with a low around 65. West wind 5 to 8 mph.
Tuesday
Sunny, with a high near 80. West wind around 8 mph becoming southwest in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
East Harwich MA
 41.69°N 70.04°W (Elev. 52 ft)
Last Update:
2:34 am EDT Aug 19, 2026
Forecast Valid:
2am EDT Aug 19, 2026-6pm EDT Aug 25, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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