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

50°F

10°C

Humidity 100%
Wind Speed SW 12 G 18 mph
Barometer 29.69 in (1005.3 mb)
Dewpoint 50°F (10°C)
Visibility 0.75 mi
Wind Chill45°F (7°C)
Last update 12 Mar 1:52 am EDT
Extended Forecast for

Dennis Port MA

  • Overnight

    Overnight: A slight chance of showers. Patchy dense fog. Otherwise, cloudy, with a low around 41. Southwest wind around 11 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.

    Low: 41 °F

    Slight Chance
    Showers and
    Patchy Dense
    Fog

  • Thursday

    Thursday: A chance of showers, mainly after 9am. Patchy dense fog before noon. Otherwise, cloudy, with a high near 49. Southwest wind around 11 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    High: 49 °F

    Chance
    Showers and
    Patchy Dense
    Fog

  • Thursday Night

    Thursday Night: A chance of snow showers, mainly before 10pm. Cloudy during the early evening, then gradual clearing, with a low around 28. Northwest wind 8 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.

    Low: 28 °F

    Chance Snow
    Showers then
    Partly Cloudy

  • Friday

    Friday: Increasing clouds, with a high near 42. West wind 6 to 10 mph becoming southwest in the afternoon.

    High: 42 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 34. South wind around 11 mph, with gusts as high as 26 mph.

    Low: 34 °F

    Mostly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 44. West wind 11 to 14 mph, with gusts as high as 26 mph.

    High: 44 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 29. West wind 7 to 9 mph, with gusts as high as 21 mph.

    Low: 29 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly cloudy, with a high near 43. North wind around 6 mph becoming southeast in the afternoon.

    High: 43 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: A chance of rain after 2am. Cloudy, with a low around 35. Southeast wind 7 to 11 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.

    Low: 35 °F

    Cloudy then
    Chance Rain

Detailed Forecast

Overnight
A slight chance of showers. Patchy dense fog. Otherwise, cloudy, with a low around 41. Southwest wind around 11 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.
Thursday
A chance of showers, mainly after 9am. Patchy dense fog before noon. Otherwise, cloudy, with a high near 49. Southwest wind around 11 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
A chance of snow showers, mainly before 10pm. Cloudy during the early evening, then gradual clearing, with a low around 28. Northwest wind 8 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.
Friday
Increasing clouds, with a high near 42. West wind 6 to 10 mph becoming southwest in the afternoon.
Friday Night
Mostly cloudy, with a low around 34. South wind around 11 mph, with gusts as high as 26 mph.
Saturday
Sunny, with a high near 44. West wind 11 to 14 mph, with gusts as high as 26 mph.
Saturday Night
Mostly clear, with a low around 29. West wind 7 to 9 mph, with gusts as high as 21 mph.
Sunday
Mostly cloudy, with a high near 43. North wind around 6 mph becoming southeast in the afternoon.
Sunday Night
A chance of rain after 2am. Cloudy, with a low around 35. Southeast wind 7 to 11 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
Monday
Rain, mainly after 7am. High near 51. South wind 14 to 17 mph, with gusts as high as 34 mph. Chance of precipitation is 90%.
Monday Night
Rain likely. Cloudy, with a low around 31. South wind 10 to 14 mph becoming west after midnight. Winds could gust as high as 31 mph. Chance of precipitation is 70%.
Tuesday
A chance of rain. Mostly cloudy, with a high near 40. West wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Tuesday Night
Mostly clear, with a low around 23. Northwest wind around 9 mph, with gusts as high as 20 mph.
Wednesday
Mostly sunny, with a high near 35. Northwest wind around 7 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Dennis Port MA
 41.66°N 70.14°W (Elev. 13 ft)
Last Update:
4:43 pm EDT Mar 11, 2026
Forecast Valid:
2am EDT Mar 12, 2026-6pm EDT Mar 18, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation