National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Chatham, Chatham Municipal Airport (KCQX)

Lat: 41.69°NLon: 69.99°WElev: 66ft.

Fair

83°F

28°C

Humidity 74%
Wind Speed Vrbl 6 mph
Barometer 29.94 in (1014.1 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index90°F (32°C)
Last update 29 Jul 3:52 pm EDT
Extended Forecast for

Dennis Port MA

  • Tonight

    Tonight: Mostly clear, with a low around 68. Southwest wind 5 to 10 mph becoming north after midnight.

    Low: 68 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 84. Light and variable wind becoming south 5 to 9 mph in the morning.

    High: 84 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers, with thunderstorms also possible after 2am. Mostly cloudy, with a low around 68. Southwest wind around 8 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 68 °F

    Chance
    Showers then
    Chance
    T-storms

  • Thursday

    Thursday: A chance of showers and thunderstorms. Partly sunny, with a high near 77. Northeast wind 8 to 10 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 77 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Showers likely, with thunderstorms also possible after 5am. Some of the storms could produce heavy rainfall. Cloudy, with a low around 62. Northeast wind 7 to 9 mph. Chance of precipitation is 60%.

    Low: 62 °F

    Heavy Rain

  • Friday

    Friday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 72. Northeast wind 11 to 14 mph. Chance of precipitation is 60%.

    High: 72 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A chance of showers before 11pm. Mostly cloudy, with a low around 62. Northeast wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.

    Low: 62 °F

    Chance
    Showers then
    Mostly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 76. North wind 9 to 11 mph.

    High: 76 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 64. East wind around 5 mph becoming light and variable.

    Low: 64 °F

    Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 68. Southwest wind 5 to 10 mph becoming north after midnight.
Wednesday
Sunny, with a high near 84. Light and variable wind becoming south 5 to 9 mph in the morning.
Wednesday Night
A chance of showers, with thunderstorms also possible after 2am. Mostly cloudy, with a low around 68. Southwest wind around 8 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 77. Northeast wind 8 to 10 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers likely, with thunderstorms also possible after 5am. Some of the storms could produce heavy rainfall. Cloudy, with a low around 62. Northeast wind 7 to 9 mph. Chance of precipitation is 60%.
Friday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 72. Northeast wind 11 to 14 mph. Chance of precipitation is 60%.
Friday Night
A chance of showers before 11pm. Mostly cloudy, with a low around 62. Northeast wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.
Saturday
Sunny, with a high near 76. North wind 9 to 11 mph.
Saturday Night
Clear, with a low around 64. East wind around 5 mph becoming light and variable.
Sunday
Sunny, with a high near 79. South wind 5 to 8 mph.
Sunday Night
Partly cloudy, with a low around 66. Southwest wind around 7 mph.
Monday
Mostly sunny, with a high near 79. South wind 6 to 9 mph.
Monday Night
Partly cloudy, with a low around 65. South wind around 7 mph.
Tuesday
Mostly sunny, with a high near 78. Southeast wind 6 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:
2:33 pm EDT Jul 29, 2025
Forecast Valid:
4pm EDT Jul 29, 2025-6pm EDT Aug 5, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation