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

70°F

21°C

Humidity 84%
Wind Speed Vrbl 3 mph
Barometer 30.31 in (1026.6 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 5 Oct 9:52 am EDT
Extended Forecast for

Harwich Port MA

  • Today

    Today: Sunny, with a high near 74. Southwest wind 3 to 8 mph.

    High: 74 °F

    Sunny

  • Tonight

    Tonight: Patchy fog after midnight. Otherwise, partly cloudy, with a low around 58. Southwest wind 3 to 5 mph.

    Low: 58 °F

    Partly Cloudy
    then Patchy
    Fog

  • Monday

    Monday: Patchy fog before 9am. Otherwise, mostly sunny, with a high near 74. Southwest wind 5 to 10 mph, with gusts as high as 22 mph.

    High: 74 °F

    Patchy Fog
    then Sunny

  • Monday Night

    Monday Night: Patchy fog. Otherwise, partly cloudy, with a low around 55. Southwest wind 6 to 8 mph, with gusts as high as 23 mph.

    Low: 55 °F

    Patchy Fog

  • Tuesday

    Tuesday: Mostly sunny, with a high near 72. Southwest wind 10 to 15 mph.

    High: 72 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Showers likely, mainly after 4am. Mostly cloudy, with a low around 59. Southwest wind around 13 mph. Chance of precipitation is 60%.

    Low: 59 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Wednesday

    Wednesday: Showers. High near 71. Southwest wind around 14 mph becoming west in the afternoon. Chance of precipitation is 90%.

    High: 71 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers likely, mainly before 8pm. Mostly cloudy, with a low around 50. North wind 11 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 60%.

    Low: 50 °F

    Showers
    Likely then
    Chance
    Showers

  • Thursday

    Thursday: Sunny, with a high near 60. North wind around 15 mph, with gusts as high as 28 mph.

    High: 60 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 74. Southwest wind 3 to 8 mph.
Tonight
Patchy fog after midnight. Otherwise, partly cloudy, with a low around 58. Southwest wind 3 to 5 mph.
Monday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 74. Southwest wind 5 to 10 mph, with gusts as high as 22 mph.
Monday Night
Patchy fog. Otherwise, partly cloudy, with a low around 55. Southwest wind 6 to 8 mph, with gusts as high as 23 mph.
Tuesday
Mostly sunny, with a high near 72. Southwest wind 10 to 15 mph.
Tuesday Night
Showers likely, mainly after 4am. Mostly cloudy, with a low around 59. Southwest wind around 13 mph. Chance of precipitation is 60%.
Wednesday
Showers. High near 71. Southwest wind around 14 mph becoming west in the afternoon. Chance of precipitation is 90%.
Wednesday Night
Showers likely, mainly before 8pm. Mostly cloudy, with a low around 50. North wind 11 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 60%.
Thursday
Sunny, with a high near 60. North wind around 15 mph, with gusts as high as 28 mph.
Thursday Night
Mostly clear, with a low around 48. Northeast wind 6 to 9 mph.
Friday
Mostly sunny, with a high near 64. East wind 6 to 9 mph becoming south in the afternoon.
Friday Night
Partly cloudy, with a low around 53. Southwest wind around 7 mph.
Saturday
A chance of showers. Partly sunny, with a high near 68. West wind 8 to 11 mph. Chance of precipitation is 30%.
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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:
9:44 am EDT Oct 5, 2025
Forecast Valid:
10am EDT Oct 5, 2025-6pm EDT Oct 11, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation