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

34°F

1°C

Humidity 97%
Wind Speed SW 6 mph
Barometer 29.94 in (1013.9 mb)
Dewpoint 33°F (1°C)
Visibility 0.25 mi
Wind Chill29°F (-2°C)
Last update 18 Feb 8:52 am EST
Extended Forecast for

Dennis Port MA

  • Today

    Today: Snow likely, possibly mixed with rain. Patchy dense fog. Otherwise, cloudy, with a high near 38. West wind around 6 mph becoming calm in the afternoon. Chance of precipitation is 70%. Little or no snow accumulation expected.

    High: 38 °F

    Rain/Snow
    Likely and
    Patchy Dense
    Fog

  • Tonight

    Tonight: Snow likely, possibly mixed with rain before 11pm, then a chance of snow between 11pm and 3am. Patchy fog before 10pm. Otherwise, cloudy, with a low around 31. Calm wind becoming north around 6 mph after midnight. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    Low: 31 °F

    Rain/Snow
    Likely and
    Patchy Fog
    then Chance
    Snow

  • Thursday

    Thursday: Mostly sunny, with a high near 37. North wind 5 to 7 mph becoming calm in the afternoon.

    High: 37 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A slight chance of freezing rain after 4am. Mostly cloudy, with a low around 28. Calm wind. Chance of precipitation is 20%.

    Low: 28 °F

    Mostly Cloudy
    then Slight
    Chance
    Freezing Rain

  • Friday

    Friday: A chance of rain, snow, and freezing rain before 9am, then rain. High near 37. East wind 5 to 9 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 37 °F

    Chance Wintry
    Mix then Rain

  • Friday Night

    Friday Night: Rain before 3am, then a chance of snow. Low around 29. East wind around 7 mph becoming north after midnight. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 29 °F

    Rain then
    Rain/Snow
    Likely

  • Saturday

    Saturday: A chance of snow before 9am, then a chance of rain between 9am and noon. Mostly cloudy, with a high near 36. North wind 5 to 8 mph. Chance of precipitation is 40%.

    High: 36 °F

    Chance
    Rain/Snow
    then Mostly
    Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 26. Northeast wind 3 to 5 mph.

    Low: 26 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of snow after 1pm. Mostly cloudy, with a high near 35. Northeast wind 6 to 9 mph. Chance of precipitation is 30%.

    High: 35 °F

    Mostly Cloudy
    then Chance
    Snow

Detailed Forecast

Today
Snow likely, possibly mixed with rain. Patchy dense fog. Otherwise, cloudy, with a high near 38. West wind around 6 mph becoming calm in the afternoon. Chance of precipitation is 70%. Little or no snow accumulation expected.
Tonight
Snow likely, possibly mixed with rain before 11pm, then a chance of snow between 11pm and 3am. Patchy fog before 10pm. Otherwise, cloudy, with a low around 31. Calm wind becoming north around 6 mph after midnight. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Thursday
Mostly sunny, with a high near 37. North wind 5 to 7 mph becoming calm in the afternoon.
Thursday Night
A slight chance of freezing rain after 4am. Mostly cloudy, with a low around 28. Calm wind. Chance of precipitation is 20%.
Friday
A chance of rain, snow, and freezing rain before 9am, then rain. High near 37. East wind 5 to 9 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Friday Night
Rain before 3am, then a chance of snow. Low around 29. East wind around 7 mph becoming north after midnight. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Saturday
A chance of snow before 9am, then a chance of rain between 9am and noon. Mostly cloudy, with a high near 36. North wind 5 to 8 mph. Chance of precipitation is 40%.
Saturday Night
Mostly cloudy, with a low around 26. Northeast wind 3 to 5 mph.
Sunday
A chance of snow after 1pm. Mostly cloudy, with a high near 35. Northeast wind 6 to 9 mph. Chance of precipitation is 30%.
Sunday Night
Snow likely, mainly after 11pm. Cloudy, with a low around 28. Northeast wind 9 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
Monday
A chance of snow. Cloudy, with a high near 34. Northeast wind 13 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 50%.
Monday Night
A chance of snow. Mostly cloudy, with a low around 22. Northwest wind around 11 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.
Tuesday
Mostly sunny, with a high near 30. Northwest wind 9 to 11 mph, with gusts as high as 22 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:
6:36 am EST Feb 18, 2026
Forecast Valid:
9am EST Feb 18, 2026-6pm EST Feb 24, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation