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

65°F

18°C

Humidity 84%
Wind Speed SE 8 mph
Barometer 30.12 in (1020.0 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 17 Jun 12:52 pm EDT
Extended Forecast for

Harwich Port MA

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 69. Southeast wind around 9 mph.

    High: 69 °F

    Partly Sunny

  • Tonight

    Tonight: Isolated showers after 10pm. Patchy fog. Otherwise, cloudy, with a low around 61. Southeast wind around 8 mph. Chance of precipitation is 20%.

    Low: 61 °F

    Isolated
    Showers and
    Patchy Fog

  • Wednesday

    Wednesday: A slight chance of showers. Patchy fog before noon. Otherwise, mostly cloudy, with a high near 71. South wind 7 to 9 mph. Chance of precipitation is 20%.

    High: 71 °F

    Slight Chance
    Showers and
    Patchy Fog

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 63. Southwest wind around 8 mph. Chance of precipitation is 40%.

    Low: 63 °F

    Chance
    Showers

  • Juneteenth

    Juneteenth: A slight chance of showers and thunderstorms before 10am. Mostly sunny, with a high near 77. Southwest wind 8 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.

    High: 77 °F

    Slight Chance
    T-storms then
    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 64. Southwest wind 10 to 14 mph.

    Low: 64 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 77. Southwest wind around 11 mph.

    High: 77 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 64. West wind 6 to 9 mph.

    Low: 64 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 76. Southwest wind 6 to 9 mph.

    High: 76 °F

    Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 69. Southeast wind around 9 mph.
Tonight
Isolated showers after 10pm. Patchy fog. Otherwise, cloudy, with a low around 61. Southeast wind around 8 mph. Chance of precipitation is 20%.
Wednesday
A slight chance of showers. Patchy fog before noon. Otherwise, mostly cloudy, with a high near 71. South wind 7 to 9 mph. Chance of precipitation is 20%.
Wednesday Night
A slight chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 63. Southwest wind around 8 mph. Chance of precipitation is 40%.
Juneteenth
A slight chance of showers and thunderstorms before 10am. Mostly sunny, with a high near 77. Southwest wind 8 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.
Thursday Night
Partly cloudy, with a low around 64. Southwest wind 10 to 14 mph.
Friday
Sunny, with a high near 77. Southwest wind around 11 mph.
Friday Night
Mostly clear, with a low around 64. West wind 6 to 9 mph.
Saturday
Sunny, with a high near 76. Southwest wind 6 to 9 mph.
Saturday Night
Mostly cloudy, with a low around 63. Southwest wind around 7 mph.
Sunday
Mostly sunny, with a high near 76. Southwest wind 9 to 11 mph.
Sunday Night
Partly cloudy, with a low around 64. Southwest wind around 8 mph.
Monday
Mostly sunny, with a high near 77. South wind 7 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:
8:49 am EDT Jun 17, 2025
Forecast Valid:
1pm EDT Jun 17, 2025-6pm EDT Jun 23, 2025
 
Forecast Discussion
 
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Additional Resources

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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