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.

Fog

71°F

22°C

Humidity 100%
Wind Speed Calm
Barometer 30.00 in (1016.0 mb)
Dewpoint 71°F (22°C)
Visibility 0.25 mi
Last update 15 Aug 1:52 am EDT
Extended Forecast for

West Harwich MA

  • Overnight

    Overnight: Patchy fog. Otherwise, mostly cloudy, with a low around 68. North wind around 6 mph.

    Low: 68 °F

    Patchy Fog

  • Friday

    Friday: Patchy fog before 8am. Otherwise, partly sunny, with a high near 74. Northeast wind 11 to 13 mph.

    High: 74 °F

    Patchy Fog
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Patchy fog between 10pm and 11pm. Otherwise, partly cloudy, with a low around 64. East wind 5 to 8 mph.

    Low: 64 °F

    Patchy Fog
    then Partly
    Cloudy

  • Saturday

    Saturday: Sunny, with a high near 74. Northeast wind 6 to 8 mph becoming southeast in the afternoon.

    High: 74 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 66. South wind around 8 mph.

    Low: 66 °F

    Mostly Clear

  • Sunday

    Sunday: A chance of thunderstorms after 5pm. Mostly sunny, with a high near 79. Southwest wind 10 to 17 mph. Chance of precipitation is 30%.

    High: 79 °F

    Sunny then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 5am. Mostly cloudy, with a low around 63. Southwest wind 15 to 17 mph becoming north after midnight. Chance of precipitation is 40%.

    Low: 63 °F

    Chance
    T-storms then
    Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 71. Breezy, with a northeast wind 15 to 20 mph.

    High: 71 °F

    Mostly Sunny
    and Breezy
    then Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 62. East wind 7 to 10 mph.

    Low: 62 °F

    Partly Cloudy

Detailed Forecast

Overnight
Patchy fog. Otherwise, mostly cloudy, with a low around 68. North wind around 6 mph.
Friday
Patchy fog before 8am. Otherwise, partly sunny, with a high near 74. Northeast wind 11 to 13 mph.
Friday Night
Patchy fog between 10pm and 11pm. Otherwise, partly cloudy, with a low around 64. East wind 5 to 8 mph.
Saturday
Sunny, with a high near 74. Northeast wind 6 to 8 mph becoming southeast in the afternoon.
Saturday Night
Mostly clear, with a low around 66. South wind around 8 mph.
Sunday
A chance of thunderstorms after 5pm. Mostly sunny, with a high near 79. Southwest wind 10 to 17 mph. Chance of precipitation is 30%.
Sunday Night
A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 5am. Mostly cloudy, with a low around 63. Southwest wind 15 to 17 mph becoming north after midnight. Chance of precipitation is 40%.
Monday
Mostly sunny, with a high near 71. Breezy, with a northeast wind 15 to 20 mph.
Monday Night
Partly cloudy, with a low around 62. East wind 7 to 10 mph.
Tuesday
Mostly sunny, with a high near 72. Northeast wind 11 to 13 mph.
Tuesday Night
Partly cloudy, with a low around 63. Southeast wind around 10 mph, with gusts as high as 20 mph.
Wednesday
Mostly sunny, with a high near 73. East wind 11 to 15 mph, with gusts as high as 25 mph.
Wednesday Night
Partly cloudy, with a low around 63. Northeast wind around 14 mph.
Thursday
Sunny, with a high near 73. Northeast wind 16 to 18 mph, with gusts as high as 31 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
West Harwich MA
 41.66°N 70.11°W (Elev. 0 ft)
Last Update:
2:40 am EDT Aug 15, 2025
Forecast Valid:
2am EDT Aug 15, 2025-6pm EDT Aug 21, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation