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.

Light Rain

40°F

4°C

Humidity 97%
Wind Speed N 8 mph
Barometer 29.75 in (1007.6 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 23 Mar 4:52 am EDT
Extended Forecast for

Northwest Harwich MA

  • Overnight

    Overnight: Rain. Low around 38. North wind around 11 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 38 °F

    Rain

  • Monday

    Monday: Rain before noon, then showers likely, mainly between noon and 1pm. High near 39. North wind 15 to 17 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 39 °F

    Rain then
    Showers
    Likely

  • Monday Night

    Monday Night: A chance of rain and snow showers, mainly before 10pm. Mostly cloudy, with a low around 30. North wind 7 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

    Low: 30 °F

    Chance
    Rain/Snow
    then Mostly
    Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 41. North wind 5 to 8 mph.

    High: 41 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 32. Southwest wind around 7 mph.

    Low: 32 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 46. Southwest wind 6 to 10 mph, with gusts as high as 20 mph.

    High: 46 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A chance of rain after 5am. Mostly cloudy, with a low around 37. Southwest wind around 8 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    Low: 37 °F

    Mostly Cloudy
    then Chance
    Rain

  • Thursday

    Thursday: A chance of rain before 7am. Mostly cloudy, with a high near 50. Southwest wind 7 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.

    High: 50 °F

    Chance Rain
    then Mostly
    Cloudy

  • Thursday Night

    Thursday Night: A chance of rain after 2am. Mostly cloudy, with a low around 37. Southwest wind around 8 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.

    Low: 37 °F

    Mostly Cloudy
    then Chance
    Rain

Detailed Forecast

Overnight
Rain. Low around 38. North wind around 11 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
Rain before noon, then showers likely, mainly between noon and 1pm. High near 39. North wind 15 to 17 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Monday Night
A chance of rain and snow showers, mainly before 10pm. Mostly cloudy, with a low around 30. North wind 7 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Tuesday
Mostly cloudy, then gradually becoming sunny, with a high near 41. North wind 5 to 8 mph.
Tuesday Night
Mostly cloudy, with a low around 32. Southwest wind around 7 mph.
Wednesday
Partly sunny, with a high near 46. Southwest wind 6 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
A chance of rain after 5am. Mostly cloudy, with a low around 37. Southwest wind around 8 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Thursday
A chance of rain before 7am. Mostly cloudy, with a high near 50. Southwest wind 7 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Thursday Night
A chance of rain after 2am. Mostly cloudy, with a low around 37. Southwest wind around 8 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.
Friday
A chance of rain before 2pm. Mostly cloudy, with a high near 50. Southwest wind around 10 mph becoming north in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 50%.
Friday Night
Mostly cloudy, with a low around 26. North wind around 8 mph.
Saturday
Partly sunny, with a high near 37. North wind around 6 mph.
Saturday Night
Partly cloudy, with a low around 27. West wind 3 to 6 mph.
Sunday
Sunny, with a high near 43. Southwest wind 6 to 8 mph.
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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:
1:27 am EDT Mar 23, 2026
Forecast Valid:
4am EDT Mar 23, 2026-6pm EDT Mar 29, 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