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

Hyannis, Barnstable Municipal-Boardman Airport (KHYA)

Lat: 41.67°NLon: 70.27°WElev: 49ft.

Fair

75°F

24°C

Humidity 64%
Wind Speed E 3 mph
Barometer 30.02 in (1016.5 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 5 Jul 6:56 pm EDT
Extended Forecast for

Dennis MA

  • Tonight

    Tonight: A chance of showers, mainly after 2am. Mostly cloudy, with a low around 66. Southeast wind around 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 66 °F

    Mostly Cloudy
    then Chance
    Showers

  • Monday

    Monday: A chance of showers. Mostly cloudy, with a high near 80. East wind 6 to 10 mph. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 80 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Showers likely, then showers and possibly a thunderstorm after 1am. Patchy fog after 11pm. Low around 66. East wind 11 to 18 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 66 °F

    Chance
    Showers and
    Patchy Fog
    then Showers
    and Patchy
    Fog

  • Tuesday

    Tuesday: Showers and possibly a thunderstorm before 2pm, then showers likely. High near 80. East wind around 14 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

    High: 80 °F

    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers. Mostly cloudy, with a low around 64. North wind 8 to 10 mph. Chance of precipitation is 40%.

    Low: 64 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Partly sunny, with a high near 81. North wind 8 to 11 mph.

    High: 81 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 65. Light and variable wind.

    Low: 65 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 82. Southwest wind 5 to 11 mph.

    High: 82 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 71. Southwest wind around 10 mph.

    Low: 71 °F

    Partly Cloudy

Detailed Forecast

Tonight
A chance of showers, mainly after 2am. Mostly cloudy, with a low around 66. Southeast wind around 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Monday
A chance of showers. Mostly cloudy, with a high near 80. East wind 6 to 10 mph. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
Showers likely, then showers and possibly a thunderstorm after 1am. Patchy fog after 11pm. Low around 66. East wind 11 to 18 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday
Showers and possibly a thunderstorm before 2pm, then showers likely. High near 80. East wind around 14 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 64. North wind 8 to 10 mph. Chance of precipitation is 40%.
Wednesday
Partly sunny, with a high near 81. North wind 8 to 11 mph.
Wednesday Night
Partly cloudy, with a low around 65. Light and variable wind.
Thursday
Mostly sunny, with a high near 82. Southwest wind 5 to 11 mph.
Thursday Night
Partly cloudy, with a low around 71. Southwest wind around 10 mph.
Friday
A chance of showers after 4pm. Mostly sunny, with a high near 84. Southwest wind 8 to 10 mph. Chance of precipitation is 30%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 70. West wind around 6 mph becoming north after midnight. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 82. North wind 6 to 8 mph.
Saturday Night
Partly cloudy, with a low around 68. Light and variable wind.
Sunday
Sunny, with a high near 80. North wind around 7 mph becoming east in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Dennis MA
 41.73°N 70.18°W (Elev. 121 ft)
Last Update:
3:07 pm EDT Jul 5, 2026
Forecast Valid:
8pm EDT Jul 5, 2026-6pm EDT Jul 12, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation