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

43°F

6°C

Humidity 100%
Wind Speed SW 8 mph
Barometer 30.04 in (1017.3 mb)
Dewpoint 43°F (6°C)
Visibility 0.25 mi
Wind Chill38°F (3°C)
Last update 9 Mar 11:52 pm EDT
Extended Forecast for

West Harwich MA

  • Overnight

    Overnight: Patchy dense fog. Otherwise, mostly cloudy, with a low around 38. Southwest wind around 9 mph.

    Low: 38 °F

    Patchy Dense
    Fog

  • Tuesday

    Tuesday: Patchy fog before 11am. Otherwise, partly sunny, with a high near 45. Southwest wind 10 to 14 mph.

    High: 45 °F

    Patchy Fog
    then Partly
    Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog. Otherwise, cloudy, with a low around 38. Southwest wind 7 to 11 mph.

    Low: 38 °F

    Patchy Fog

  • Wednesday

    Wednesday: Patchy fog before noon, then patchy fog after 4pm. Otherwise, cloudy, with a high near 47. South wind 7 to 10 mph.

    High: 47 °F

    Patchy Fog

  • Wednesday Night

    Wednesday Night: A slight chance of rain or light rain before 8pm, then rain likely, mainly after 2am. Patchy fog before 8pm. Otherwise, cloudy, with a low around 43. South wind 14 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 70%.

    Low: 43 °F

    Slight Chance
    Rain and
    Patchy Fog
    then Rain
    Likely

  • Thursday

    Thursday: Rain likely, mainly before 9am. Mostly cloudy, with a high near 48. West wind 14 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 60%.

    High: 48 °F

    Rain Likely

  • Thursday Night

    Thursday Night: A chance of rain before 11pm, then a chance of snow between 11pm and 1am. Mostly cloudy, with a low around 30. Northwest wind 11 to 14 mph. Chance of precipitation is 40%.

    Low: 30 °F

    Chance
    Rain/Snow
    then Chance
    Snow

  • Friday

    Friday: Mostly sunny, with a high near 41. Northwest wind 8 to 10 mph becoming southwest in the afternoon.

    High: 41 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A chance of rain after 9pm. Mostly cloudy, with a low around 35. South wind 11 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 40%.

    Low: 35 °F

    Chance Rain

Detailed Forecast

Overnight
Patchy dense fog. Otherwise, mostly cloudy, with a low around 38. Southwest wind around 9 mph.
Tuesday
Patchy fog before 11am. Otherwise, partly sunny, with a high near 45. Southwest wind 10 to 14 mph.
Tuesday Night
Patchy fog. Otherwise, cloudy, with a low around 38. Southwest wind 7 to 11 mph.
Wednesday
Patchy fog before noon, then patchy fog after 4pm. Otherwise, cloudy, with a high near 47. South wind 7 to 10 mph.
Wednesday Night
A slight chance of rain or light rain before 8pm, then rain likely, mainly after 2am. Patchy fog before 8pm. Otherwise, cloudy, with a low around 43. South wind 14 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 70%.
Thursday
Rain likely, mainly before 9am. Mostly cloudy, with a high near 48. West wind 14 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 60%.
Thursday Night
A chance of rain before 11pm, then a chance of snow between 11pm and 1am. Mostly cloudy, with a low around 30. Northwest wind 11 to 14 mph. Chance of precipitation is 40%.
Friday
Mostly sunny, with a high near 41. Northwest wind 8 to 10 mph becoming southwest in the afternoon.
Friday Night
A chance of rain after 9pm. Mostly cloudy, with a low around 35. South wind 11 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 40%.
Saturday
A chance of rain before 9am. Mostly sunny, with a high near 42. West wind 13 to 15 mph. Chance of precipitation is 30%.
Saturday Night
Partly cloudy, with a low around 32. Northwest wind 7 to 9 mph.
Sunday
Mostly cloudy, with a high near 45. Northwest wind 6 to 11 mph becoming southeast in the afternoon. Winds could gust as high as 21 mph.
Sunday Night
A chance of rain. Cloudy, with a low around 38. Breezy, with a south wind 16 to 20 mph, with gusts as high as 33 mph. Chance of precipitation is 40%.
Monday
Rain likely. Cloudy, with a high near 46. Breezy, with a south wind 16 to 20 mph, with gusts as high as 32 mph. Chance of precipitation is 70%.
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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:
10:48 pm EDT Mar 9, 2026
Forecast Valid:
12am EDT Mar 10, 2026-6pm EDT Mar 16, 2026
 
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