National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Chatham, Chatham Municipal Airport (KCQX)

Lat: 41.69°NLon: 69.99°WElev: 66ft.

Fair

60°F

16°C

Humidity 62%
Wind Speed NE 10 mph
Barometer 30.15 in (1020.9 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Last update 19 Sep 5:52 am EDT
Extended Forecast for

Harwich Port MA

  • Today

    Today: Mostly sunny, with a high near 63. Northeast wind 9 to 16 mph, with gusts as high as 26 mph.

    High: 63 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 57. Northeast wind 5 to 7 mph.

    Low: 57 °F

    Partly Cloudy

  • Sunday

    Sunday: Showers likely, mainly after 4pm. Mostly cloudy, with a high near 66. Southeast wind 10 to 13 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 66 °F

    Mostly Cloudy
    then Showers
    Likely

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm before 2am, then showers likely. Patchy fog before 9pm. Low around 58. Southeast wind 10 to 14 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 58 °F

    Showers and
    Patchy Fog

  • Monday

    Monday: A chance of showers, mainly before 8am. Mostly cloudy, with a high near 65. Breezy, with a north wind 18 to 21 mph. Chance of precipitation is 30%.

    High: 65 °F

    Breezy.
    Chance
    Showers then
    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 57. Northeast wind 14 to 18 mph.

    Low: 57 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 63. Breezy, with a northeast wind 18 to 20 mph.

    High: 63 °F

    Mostly Cloudy
    then Mostly
    Cloudy and
    Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 57. Breezy, with a northeast wind 20 to 23 mph.

    Low: 57 °F

    Mostly Cloudy
    and Breezy

  • Wednesday

    Wednesday: Partly sunny, with a high near 63. Breezy, with a northeast wind around 25 mph, with gusts as high as 36 mph.

    High: 63 °F

    Partly Sunny
    and Breezy

Detailed Forecast

Today
Mostly sunny, with a high near 63. Northeast wind 9 to 16 mph, with gusts as high as 26 mph.
Tonight
Partly cloudy, with a low around 57. Northeast wind 5 to 7 mph.
Sunday
Showers likely, mainly after 4pm. Mostly cloudy, with a high near 66. Southeast wind 10 to 13 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Showers and possibly a thunderstorm before 2am, then showers likely. Patchy fog before 9pm. Low around 58. Southeast wind 10 to 14 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Monday
A chance of showers, mainly before 8am. Mostly cloudy, with a high near 65. Breezy, with a north wind 18 to 21 mph. Chance of precipitation is 30%.
Monday Night
Mostly cloudy, with a low around 57. Northeast wind 14 to 18 mph.
Tuesday
Mostly cloudy, with a high near 63. Breezy, with a northeast wind 18 to 20 mph.
Tuesday Night
Mostly cloudy, with a low around 57. Breezy, with a northeast wind 20 to 23 mph.
Wednesday
Partly sunny, with a high near 63. Breezy, with a northeast wind around 25 mph, with gusts as high as 36 mph.
Wednesday Night
Mostly cloudy, with a low around 57. Windy, with a northeast wind 28 to 30 mph.
Thursday
A chance of showers. Mostly cloudy, with a high near 63. Windy, with a northeast wind around 32 mph, with gusts as high as 46 mph. Chance of precipitation is 40%.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 57. Windy, with a northeast wind 31 to 33 mph. Chance of precipitation is 40%.
Friday
A chance of showers. Mostly cloudy, with a high near 64. Windy, with a north wind 30 to 33 mph, with gusts as high as 46 mph. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
Harwich Port MA
 41.65°N 70.08°W (Elev. 0 ft)
Last Update:
5:25 am EDT Sep 19, 2026
Forecast Valid:
6am EDT Sep 19, 2026-6pm EDT Sep 25, 2026
 
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