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/Mist

45°F

7°C

Humidity 100%
Wind Speed SE 3 mph
Barometer 29.86 in (1011.4 mb)
Dewpoint 45°F (7°C)
Visibility 1.25 mi
Last update 19 Apr 5:52 am EDT
Extended Forecast for

South Wellfleet MA

  • Today

    Today: Rain and possibly a thunderstorm. Patchy dense fog. High near 57. South wind 5 to 14 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 57 °F

    Chance Rain
    and Patchy
    Dense Fog
    then Rain and
    Patchy Fog

  • Tonight

    Tonight: A chance of rain before 8pm, then a slight chance of showers between 8pm and 9pm. Patchy fog between 11pm and midnight. Otherwise, cloudy during the early evening, then gradual clearing, with a low around 39. Northwest wind 11 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 39 °F

    Chance Rain
    and Patchy
    Fog then
    Mostly Clear

  • Monday

    Monday: A slight chance of rain after 3pm. Increasing clouds, with a high near 51. West wind around 7 mph. Chance of precipitation is 20%.

    High: 51 °F

    Sunny then
    Slight Chance
    Rain

  • Monday Night

    Monday Night: A slight chance of showers before midnight. Mostly cloudy, with a low around 36. West wind 5 to 11 mph becoming north after midnight. Chance of precipitation is 20%.

    Low: 36 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 47. North wind 7 to 10 mph.

    High: 47 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 37. Southwest wind 6 to 8 mph.

    Low: 37 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers between 11am and noon. Mostly cloudy, with a high near 51. South wind 9 to 11 mph. Chance of precipitation is 30%.

    High: 51 °F

    Chance
    Showers then
    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 41. South wind around 7 mph.

    Low: 41 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 53. West wind around 7 mph.

    High: 53 °F

    Mostly Sunny

Detailed Forecast

Today
Rain and possibly a thunderstorm. Patchy dense fog. High near 57. South wind 5 to 14 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
A chance of rain before 8pm, then a slight chance of showers between 8pm and 9pm. Patchy fog between 11pm and midnight. Otherwise, cloudy during the early evening, then gradual clearing, with a low around 39. Northwest wind 11 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Monday
A slight chance of rain after 3pm. Increasing clouds, with a high near 51. West wind around 7 mph. Chance of precipitation is 20%.
Monday Night
A slight chance of showers before midnight. Mostly cloudy, with a low around 36. West wind 5 to 11 mph becoming north after midnight. Chance of precipitation is 20%.
Tuesday
Sunny, with a high near 47. North wind 7 to 10 mph.
Tuesday Night
Partly cloudy, with a low around 37. Southwest wind 6 to 8 mph.
Wednesday
A chance of showers between 11am and noon. Mostly cloudy, with a high near 51. South wind 9 to 11 mph. Chance of precipitation is 30%.
Wednesday Night
Mostly cloudy, with a low around 41. South wind around 7 mph.
Thursday
Mostly sunny, with a high near 53. West wind around 7 mph.
Thursday Night
Mostly cloudy, with a low around 41. West wind 5 to 7 mph becoming north in the evening.
Friday
Mostly sunny, with a high near 52. North wind around 7 mph.
Friday Night
Partly cloudy, with a low around 42. South wind around 6 mph becoming northwest after midnight.
Saturday
Partly sunny, with a high near 52. North wind around 8 mph becoming east in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
South Wellfleet MA
 41.88°N 69.99°W (Elev. 10 ft)
Last Update:
3:05 am EDT Apr 19, 2026
Forecast Valid:
6am EDT Apr 19, 2026-6pm EDT Apr 25, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation