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.

Overcast

44°F

7°C

Humidity 96%
Wind Speed N 6 mph
Barometer 29.78 in (1008.5 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 23 Mar 12:52 am EDT
Extended Forecast for

Dennis Port MA

  • Overnight

    Overnight: Rain. Low around 39. North wind 9 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 39 °F

    Rain

  • Monday

    Monday: Rain before noon, then rain showers likely between noon and 5pm, then scattered rain and snow showers after 5pm. High near 39. North wind 15 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

    High: 39 °F

    Rain then
    Rain/Snow
    Likely

  • Monday Night

    Monday Night: Scattered rain showers, mixing with snow after 7pm, then gradually ending. Mostly cloudy, with a low around 30. North wind 7 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

    Low: 30 °F

    Scattered
    Rain/Snow
    then Mostly
    Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 41. North wind 5 to 9 mph.

    High: 41 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 33. Southwest wind 6 to 8 mph.

    Low: 33 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 45. Southwest wind 6 to 11 mph, with gusts as high as 21 mph.

    High: 45 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A chance of rain after 5am. Mostly cloudy, with a low around 38. Southwest wind around 9 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.

    Low: 38 °F

    Mostly Cloudy
    then Chance
    Rain

  • Thursday

    Thursday: Mostly cloudy, with a high near 49. Southwest wind 8 to 11 mph, with gusts as high as 22 mph.

    High: 49 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: A chance of rain after 2am. Mostly cloudy, with a low around 38. Southwest wind 8 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 40%.

    Low: 38 °F

    Mostly Cloudy
    then Chance
    Rain

Detailed Forecast

Overnight
Rain. Low around 39. North wind 9 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Monday
Rain before noon, then rain showers likely between noon and 5pm, then scattered rain and snow showers after 5pm. High near 39. North wind 15 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.
Monday Night
Scattered rain showers, mixing with snow after 7pm, then gradually ending. Mostly cloudy, with a low around 30. North wind 7 to 14 mph, with gusts as high as 24 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 9 mph.
Tuesday Night
Mostly cloudy, with a low around 33. Southwest wind 6 to 8 mph.
Wednesday
Partly sunny, with a high near 45. Southwest wind 6 to 11 mph, with gusts as high as 21 mph.
Wednesday Night
A chance of rain after 5am. Mostly cloudy, with a low around 38. Southwest wind around 9 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Thursday
Mostly cloudy, with a high near 49. Southwest wind 8 to 11 mph, with gusts as high as 22 mph.
Thursday Night
A chance of rain after 2am. Mostly cloudy, with a low around 38. Southwest wind 8 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 40%.
Friday
A chance of rain before 2pm. Mostly cloudy, with a high near 49. Southwest wind around 11 mph becoming north in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 50%.
Friday Night
Mostly cloudy, with a low around 26. North wind around 9 mph.
Saturday
Partly sunny, with a high near 37. North wind around 7 mph.
Saturday Night
Partly cloudy, with a low around 28. West wind around 6 mph.
Sunday
Sunny, with a high near 42. Southwest wind 7 to 9 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Dennis Port MA
 41.66°N 70.14°W (Elev. 13 ft)
Last Update:
1:27 am EDT Mar 23, 2026
Forecast Valid:
1am EDT Mar 23, 2026-6pm EDT Mar 29, 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