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

68°F

20°C

Humidity 84%
Wind Speed SW 10 mph
Barometer 29.78 in (1008.6 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 14 Oct 8:56 am EDT
Extended Forecast for

South Dennis MA

  • Today

    Today: Increasing clouds, with a high near 74. West wind 9 to 13 mph.

    High: 74 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Mostly clear, with a low around 48. Northwest wind 7 to 14 mph, with gusts as high as 24 mph.

    Low: 48 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 58. North wind 9 to 13 mph, with gusts as high as 24 mph.

    High: 58 °F

    Sunny

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 44. Calm wind becoming southeast around 5 mph after midnight.

    Low: 44 °F

    Increasing
    Clouds

  • Friday

    Friday: Showers. High near 69. Southeast wind 9 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 100%.

    High: 69 °F

    Showers

  • Friday Night

    Friday Night: Showers, mainly before 2am. Low around 44. Southwest wind 13 to 15 mph becoming northwest after midnight. Winds could gust as high as 31 mph. Chance of precipitation is 80%.

    Low: 44 °F

    Showers

  • Saturday

    Saturday: A chance of showers before 8am. Mostly sunny, with a high near 54. Northwest wind around 18 mph, with gusts as high as 33 mph. Chance of precipitation is 30%.

    High: 54 °F

    Chance
    Showers then
    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 39. Northwest wind 10 to 16 mph, with gusts as high as 29 mph.

    Low: 39 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 57. West wind around 11 mph, with gusts as high as 22 mph.

    High: 57 °F

    Sunny

Detailed Forecast

Today
Increasing clouds, with a high near 74. West wind 9 to 13 mph.
Tonight
Mostly clear, with a low around 48. Northwest wind 7 to 14 mph, with gusts as high as 24 mph.
Thursday
Sunny, with a high near 58. North wind 9 to 13 mph, with gusts as high as 24 mph.
Thursday Night
Increasing clouds, with a low around 44. Calm wind becoming southeast around 5 mph after midnight.
Friday
Showers. High near 69. Southeast wind 9 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 100%.
Friday Night
Showers, mainly before 2am. Low around 44. Southwest wind 13 to 15 mph becoming northwest after midnight. Winds could gust as high as 31 mph. Chance of precipitation is 80%.
Saturday
A chance of showers before 8am. Mostly sunny, with a high near 54. Northwest wind around 18 mph, with gusts as high as 33 mph. Chance of precipitation is 30%.
Saturday Night
Mostly clear, with a low around 39. Northwest wind 10 to 16 mph, with gusts as high as 29 mph.
Sunday
Sunny, with a high near 57. West wind around 11 mph, with gusts as high as 22 mph.
Sunday Night
Mostly clear, with a low around 44. Southwest wind around 6 mph.
Monday
Sunny, with a high near 61. Southwest wind 8 to 13 mph.
Monday Night
Partly cloudy, with a low around 48. Southwest wind 6 to 8 mph.
Tuesday
Partly sunny, with a high near 63. West wind 7 to 9 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
South Dennis MA
 41.71°N 70.16°W (Elev. 49 ft)
Last Update:
4:17 am EDT Oct 14, 2026
Forecast Valid:
9am EDT Oct 14, 2026-6pm EDT Oct 20, 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