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.

A Few Clouds

37°F

3°C

Humidity 50%
Wind Speed SW 17 G 26 mph
Barometer 30.05 in (1017.6 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 13 Mar 2:56 pm EDT
Extended Forecast for

South Dennis MA

  • Tonight

    Tonight: Showers likely, mainly between midnight and 3am. Cloudy, then clearing toward daybreak, with a low around 33. South wind 7 to 13 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 33 °F

    Mostly Cloudy
    then Showers
    Likely

  • Saturday

    Saturday: Sunny, with a high near 46. West wind 13 to 16 mph, with gusts as high as 34 mph.

    High: 46 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 29. West wind 7 to 10 mph, with gusts as high as 24 mph.

    Low: 29 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 43. Northwest wind around 5 mph becoming east in the afternoon.

    High: 43 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 34. Southeast wind 5 to 9 mph, with gusts as high as 22 mph.

    Low: 34 °F

    Mostly Cloudy

  • Monday

    Monday: Rain, with thunderstorms also possible after 2pm. High near 53. South wind 13 to 16 mph, with gusts as high as 33 mph. Chance of precipitation is 100%.

    High: 53 °F

    Rain

  • Monday Night

    Monday Night: Rain. Low around 37. South wind around 17 mph, with gusts as high as 38 mph. Chance of precipitation is 90%.

    Low: 37 °F

    Rain

  • Tuesday

    Tuesday: Rain likely, mainly before 9am. Partly sunny, with a high near 46. Southwest wind around 14 mph, with gusts as high as 28 mph. Chance of precipitation is 60%.

    High: 46 °F

    Rain Likely
    then Chance
    Rain

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 23. West wind 9 to 11 mph, with gusts as high as 25 mph.

    Low: 23 °F

    Partly Cloudy

Detailed Forecast

Tonight
Showers likely, mainly between midnight and 3am. Cloudy, then clearing toward daybreak, with a low around 33. South wind 7 to 13 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Sunny, with a high near 46. West wind 13 to 16 mph, with gusts as high as 34 mph.
Saturday Night
Mostly clear, with a low around 29. West wind 7 to 10 mph, with gusts as high as 24 mph.
Sunday
Partly sunny, with a high near 43. Northwest wind around 5 mph becoming east in the afternoon.
Sunday Night
Mostly cloudy, with a low around 34. Southeast wind 5 to 9 mph, with gusts as high as 22 mph.
Monday
Rain, with thunderstorms also possible after 2pm. High near 53. South wind 13 to 16 mph, with gusts as high as 33 mph. Chance of precipitation is 100%.
Monday Night
Rain. Low around 37. South wind around 17 mph, with gusts as high as 38 mph. Chance of precipitation is 90%.
Tuesday
Rain likely, mainly before 9am. Partly sunny, with a high near 46. Southwest wind around 14 mph, with gusts as high as 28 mph. Chance of precipitation is 60%.
Tuesday Night
Partly cloudy, with a low around 23. West wind 9 to 11 mph, with gusts as high as 25 mph.
Wednesday
Sunny, with a high near 36. West wind 5 to 8 mph.
Wednesday Night
Mostly cloudy, with a low around 27. Light south wind.
Thursday
Partly sunny, with a high near 40. South wind 5 to 8 mph.
Thursday Night
Partly cloudy, with a low around 31. South wind around 5 mph.
Friday
Mostly sunny, with a high near 42. West wind 5 to 8 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
South Dennis MA
 41.71°N 70.16°W (Elev. 49 ft)
Last Update:
2:45 pm EDT Mar 13, 2026
Forecast Valid:
3pm EDT Mar 13, 2026-6pm EDT Mar 20, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation