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

58°F

14°C

Humidity 67%
Wind Speed E 12 G 22 mph
Barometer 30.33 in (1027.1 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Last update 4 Oct 6:52 am EDT
Extended Forecast for

Harwich Port MA

  • Today

    Today: A chance of showers, mainly after 5pm. Increasing clouds, with a high near 62. East wind 9 to 11 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 62 °F

    Sunny then
    Chance
    Showers

  • Tonight

    Tonight: Showers likely, mainly before 11pm. Patchy fog. Otherwise, cloudy, with a low around 56. East wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 60%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 56 °F

    Showers
    Likely and
    Patchy Fog

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 67. West wind 5 to 13 mph.

    High: 67 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Clear, with a low around 49. Northwest wind around 14 mph.

    Low: 49 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 59. Northwest wind 10 to 13 mph.

    High: 59 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 51. Northwest wind 5 to 8 mph.

    Low: 51 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 62. Light southwest wind increasing to 8 to 13 mph in the morning.

    High: 62 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 56. Southwest wind around 10 mph.

    Low: 56 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 65. Southwest wind 8 to 11 mph.

    High: 65 °F

    Sunny

Detailed Forecast

Today
A chance of showers, mainly after 5pm. Increasing clouds, with a high near 62. East wind 9 to 11 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Showers likely, mainly before 11pm. Patchy fog. Otherwise, cloudy, with a low around 56. East wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 60%. New precipitation amounts between a half and three quarters of an inch possible.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 67. West wind 5 to 13 mph.
Monday Night
Clear, with a low around 49. Northwest wind around 14 mph.
Tuesday
Sunny, with a high near 59. Northwest wind 10 to 13 mph.
Tuesday Night
Clear, with a low around 51. Northwest wind 5 to 8 mph.
Wednesday
Sunny, with a high near 62. Light southwest wind increasing to 8 to 13 mph in the morning.
Wednesday Night
Mostly clear, with a low around 56. Southwest wind around 10 mph.
Thursday
Sunny, with a high near 65. Southwest wind 8 to 11 mph.
Thursday Night
Mostly clear, with a low around 55. West wind 6 to 8 mph.
Friday
Sunny, with a high near 64. West wind 7 to 10 mph.
Friday Night
Mostly clear, with a low around 54. West wind around 8 mph.
Saturday
Sunny, with a high near 61. Northwest wind 9 to 11 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:
2:56 am EDT Oct 4, 2026
Forecast Valid:
7am EDT Oct 4, 2026-6pm EDT Oct 10, 2026
 
Forecast Discussion
 
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Additional Resources

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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