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.

Partly Cloudy

45°F

7°C

Humidity 90%
Wind Speed SW 12 G 24 mph
Barometer 30.10 in (1019.4 mb)
Dewpoint 42°F (6°C)
Visibility 9.00 mi
Wind Chill39°F (4°C)
Last update 30 Mar 10:52 pm EDT
Extended Forecast for

Northwest Harwich MA

  • Tonight

    Tonight: A chance of showers, mainly after 3am. Mostly cloudy, with a low around 43. Southwest wind 8 to 10 mph, with gusts as high as 24 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 43 °F

    Chance
    Showers

  • Tuesday

    Tuesday: Showers and thunderstorms likely, mainly before 11am. Mostly cloudy, with a high near 55. Southwest wind 8 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 55 °F

    Showers
    Likely then
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms between 11pm and 2am. Mostly cloudy, with a low around 46. Southwest wind 8 to 11 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.

    Low: 46 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers, mainly after noon. Mostly cloudy, with a high near 53. Southwest wind 11 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    High: 53 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Showers likely, mainly before midnight. Cloudy, with a low around 35. Northwest wind 5 to 7 mph becoming northeast in the evening. Chance of precipitation is 70%.

    Low: 35 °F

    Showers
    Likely

  • Thursday

    Thursday: A chance of showers, mainly after 4pm. Cloudy, with a high near 40. Northeast wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    High: 40 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of rain. Cloudy, with a low around 37. East wind around 6 mph. Chance of precipitation is 30%.

    Low: 37 °F

    Chance Rain

  • Friday

    Friday: Mostly cloudy, with a high near 53. Southwest wind 6 to 9 mph, with gusts as high as 20 mph.

    High: 53 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: A chance of rain after 9pm. Mostly cloudy, with a low around 42. Southwest wind around 8 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    Low: 42 °F

    Chance Rain

Detailed Forecast

Tonight
A chance of showers, mainly after 3am. Mostly cloudy, with a low around 43. Southwest wind 8 to 10 mph, with gusts as high as 24 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
Showers and thunderstorms likely, mainly before 11am. Mostly cloudy, with a high near 55. Southwest wind 8 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
A slight chance of showers and thunderstorms between 11pm and 2am. Mostly cloudy, with a low around 46. Southwest wind 8 to 11 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.
Wednesday
A chance of showers, mainly after noon. Mostly cloudy, with a high near 53. Southwest wind 11 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Showers likely, mainly before midnight. Cloudy, with a low around 35. Northwest wind 5 to 7 mph becoming northeast in the evening. Chance of precipitation is 70%.
Thursday
A chance of showers, mainly after 4pm. Cloudy, with a high near 40. Northeast wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Thursday Night
A chance of rain. Cloudy, with a low around 37. East wind around 6 mph. Chance of precipitation is 30%.
Friday
Mostly cloudy, with a high near 53. Southwest wind 6 to 9 mph, with gusts as high as 20 mph.
Friday Night
A chance of rain after 9pm. Mostly cloudy, with a low around 42. Southwest wind around 8 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Saturday
Mostly cloudy, with a high near 53. West wind 6 to 10 mph becoming northeast in the afternoon.
Saturday Night
A chance of rain. Cloudy, with a low around 39. East wind around 6 mph becoming southeast after midnight. Chance of precipitation is 30%.
Sunday
A chance of rain. Mostly cloudy, with a high near 54. South wind 7 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 40. Southwest wind around 9 mph, with gusts as high as 22 mph. Chance of precipitation is 50%.
Monday
A chance of rain. Partly sunny, with a high near 49. Northwest wind 7 to 9 mph. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Northwest Harwich MA
 41.7°N 70.1°W (Elev. 43 ft)
Last Update:
2:52 pm EDT Mar 30, 2026
Forecast Valid:
11pm EDT Mar 30, 2026-6pm EDT Apr 6, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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