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.

Fair

44°F

7°C

Humidity 85%
Wind Speed SW 14 G 28 mph
Barometer 29.92 in (1013.4 mb)
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Wind Chill37°F (3°C)
Last update 20 Mar 4:52 pm EDT
Extended Forecast for

South Wellfleet MA

  • Tonight

    Tonight: Rain, mainly after 7pm. Patchy fog after 10pm. Low around 38. South wind 13 to 15 mph, with gusts as high as 34 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 38 °F

    Rain and
    Patchy Fog

  • Saturday

    Saturday: A chance of rain before 8am. Patchy fog before 11am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 46. West wind around 11 mph becoming north in the afternoon. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 46 °F

    Chance Rain
    and Patchy
    Fog then
    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 36. North wind around 5 mph becoming southeast after midnight.

    Low: 36 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Rain likely, mainly after 5pm. Cloudy, with a high near 47. South wind 7 to 13 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 47 °F

    Slight Chance
    Rain then
    Rain Likely

  • Sunday Night

    Sunday Night: Rain likely. Cloudy, with a low around 35. Southwest wind 8 to 10 mph becoming north after midnight. Chance of precipitation is 70%.

    Low: 35 °F

    Rain Likely

  • Monday

    Monday: Rain likely, mainly before 8am. Mostly cloudy, with a high near 42. North wind around 14 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.

    High: 42 °F

    Rain Likely

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 30. North wind 11 to 13 mph.

    Low: 30 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 40. North wind 8 to 11 mph.

    High: 40 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 32. Southwest wind 7 to 10 mph.

    Low: 32 °F

    Partly Cloudy

Detailed Forecast

Tonight
Rain, mainly after 7pm. Patchy fog after 10pm. Low around 38. South wind 13 to 15 mph, with gusts as high as 34 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
A chance of rain before 8am. Patchy fog before 11am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 46. West wind around 11 mph becoming north in the afternoon. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
Increasing clouds, with a low around 36. North wind around 5 mph becoming southeast after midnight.
Sunday
Rain likely, mainly after 5pm. Cloudy, with a high near 47. South wind 7 to 13 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
Rain likely. Cloudy, with a low around 35. Southwest wind 8 to 10 mph becoming north after midnight. Chance of precipitation is 70%.
Monday
Rain likely, mainly before 8am. Mostly cloudy, with a high near 42. North wind around 14 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.
Monday Night
Mostly cloudy, with a low around 30. North wind 11 to 13 mph.
Tuesday
Mostly sunny, with a high near 40. North wind 8 to 11 mph.
Tuesday Night
Partly cloudy, with a low around 32. Southwest wind 7 to 10 mph.
Wednesday
A chance of rain. Mostly cloudy, with a high near 44. Southwest wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.
Wednesday Night
Partly cloudy, with a low around 31. West wind around 11 mph, with gusts as high as 21 mph.
Thursday
Mostly sunny, with a high near 46. Northwest wind around 10 mph becoming southwest in the afternoon.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 35. Southwest wind 11 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.
Friday
A chance of rain. Mostly cloudy, with a high near 48. Southwest wind 13 to 15 mph. Chance of precipitation is 50%.
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ABOUT THIS FORECAST

 
Point Forecast:
South Wellfleet MA
 41.88°N 69.99°W (Elev. 10 ft)
Last Update:
1:08 pm EDT Mar 20, 2026
Forecast Valid:
5pm EDT Mar 20, 2026-6pm EDT Mar 27, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation