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

47°F

8°C

Humidity 93%
Wind Speed N 3 mph
Barometer 30.03 in (1016.8 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 17 Apr 11:52 pm EDT
Extended Forecast for

Dennis Port MA

  • Tonight

    Tonight: Areas of fog after 1am. Otherwise, cloudy, with a low around 46. Northeast wind around 6 mph.

    Low: 46 °F

    Areas Fog

  • Saturday

    Saturday: Areas of fog before 4pm, then areas of fog after 5pm. Otherwise, cloudy, with a high near 49. Northeast wind 7 to 10 mph.

    High: 49 °F

    Areas Fog

  • Saturday Night

    Saturday Night: Showers likely, mainly after 4am. Areas of fog. Otherwise, cloudy, with a low around 42. Calm wind. Chance of precipitation is 60%.

    Low: 42 °F

    Showers
    Likely and
    Areas Fog

  • Sunday

    Sunday: Rain likely before 4pm, then rain and snow likely. Some thunder is also possible. Patchy fog before 9am, then patchy fog after 2pm. Otherwise, cloudy, with a high near 55. South wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

    High: 55 °F

    Rain/Snow
    Likely and
    Patchy Fog

  • Sunday Night

    Sunday Night: Rain and snow likely before 8pm, then a chance of rain between 8pm and 2am. Patchy fog before 8pm. Otherwise, mostly cloudy, with a low around 38. Northwest wind 7 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 38 °F

    Rain/Snow
    Likely and
    Patchy Fog
    then Chance
    Rain

  • Monday

    Monday: A slight chance of rain after 3pm. Mostly sunny, with a high near 45. Northwest wind around 7 mph becoming north in the afternoon. Chance of precipitation is 20%.

    High: 45 °F

    Sunny then
    Slight Chance
    Rain

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 36. Light and variable wind becoming north around 6 mph in the evening.

    Low: 36 °F

    Mostly Cloudy

  • Tuesday

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

    High: 47 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 39. Southwest wind 6 to 8 mph.

    Low: 39 °F

    Partly Cloudy

Detailed Forecast

Tonight
Areas of fog after 1am. Otherwise, cloudy, with a low around 46. Northeast wind around 6 mph.
Saturday
Areas of fog before 4pm, then areas of fog after 5pm. Otherwise, cloudy, with a high near 49. Northeast wind 7 to 10 mph.
Saturday Night
Showers likely, mainly after 4am. Areas of fog. Otherwise, cloudy, with a low around 42. Calm wind. Chance of precipitation is 60%.
Sunday
Rain likely before 4pm, then rain and snow likely. Some thunder is also possible. Patchy fog before 9am, then patchy fog after 2pm. Otherwise, cloudy, with a high near 55. South wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Sunday Night
Rain and snow likely before 8pm, then a chance of rain between 8pm and 2am. Patchy fog before 8pm. Otherwise, mostly cloudy, with a low around 38. Northwest wind 7 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Monday
A slight chance of rain after 3pm. Mostly sunny, with a high near 45. Northwest wind around 7 mph becoming north in the afternoon. Chance of precipitation is 20%.
Monday Night
Mostly cloudy, with a low around 36. Light and variable wind becoming north around 6 mph in the evening.
Tuesday
Sunny, with a high near 47. North wind around 7 mph.
Tuesday Night
Partly cloudy, with a low around 39. Southwest wind 6 to 8 mph.
Wednesday
Partly sunny, with a high near 53. Southwest wind 8 to 10 mph.
Wednesday Night
Partly cloudy, with a low around 42. Southwest wind around 6 mph becoming northwest after midnight.
Thursday
Mostly sunny, with a high near 52. North wind 6 to 8 mph.
Thursday Night
Partly cloudy, with a low around 42. West wind around 6 mph.
Friday
Partly sunny, with a high near 53. Northwest wind 6 to 8 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:
7:53 pm EDT Apr 17, 2026
Forecast Valid:
11pm EDT Apr 17, 2026-6pm EDT Apr 24, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation