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.

Overcast

72°F

22°C

Humidity 84%
Wind Speed S 10 mph
Barometer 30.03 in (1016.9 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 26 Jun 2:56 pm EDT
Extended Forecast for

South Dennis MA

  • Tonight

    Tonight: Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 63. Southwest wind 5 to 9 mph.

    Low: 63 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Saturday

    Saturday: A chance of showers, mainly after 1pm. Partly sunny, with a high near 74. Light and variable wind. Chance of precipitation is 30%.

    High: 74 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A slight chance of showers before 3am. Mostly cloudy, with a low around 61. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.

    Low: 61 °F

    Slight Chance
    Showers

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny, with a high near 77. Northeast wind 3 to 6 mph.

    High: 77 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 62. Calm wind.

    Low: 62 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 80. Calm wind becoming east around 6 mph in the afternoon.

    High: 80 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 66. Light southwest wind.

    Low: 66 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 83. Light southwest wind becoming south 5 to 10 mph in the morning.

    High: 83 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers after 10pm. Mostly cloudy, with a low around 69. Southwest wind around 7 mph. Chance of precipitation is 30%.

    Low: 69 °F

    Chance
    Showers

Detailed Forecast

Tonight
Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 63. Southwest wind 5 to 9 mph.
Saturday
A chance of showers, mainly after 1pm. Partly sunny, with a high near 74. Light and variable wind. Chance of precipitation is 30%.
Saturday Night
A slight chance of showers before 3am. Mostly cloudy, with a low around 61. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 77. Northeast wind 3 to 6 mph.
Sunday Night
Partly cloudy, with a low around 62. Calm wind.
Monday
Sunny, with a high near 80. Calm wind becoming east around 6 mph in the afternoon.
Monday Night
Mostly clear, with a low around 66. Light southwest wind.
Tuesday
Mostly sunny, with a high near 83. Light southwest wind becoming south 5 to 10 mph in the morning.
Tuesday Night
A chance of showers after 10pm. Mostly cloudy, with a low around 69. Southwest wind around 7 mph. Chance of precipitation is 30%.
Wednesday
A chance of showers before 11am. Mostly sunny, with a high near 87. South wind 7 to 10 mph. Chance of precipitation is 30%.
Wednesday Night
Partly cloudy, with a low around 71. Southwest wind 5 to 7 mph.
Thursday
Mostly sunny, with a high near 84. Southwest wind 6 to 8 mph.
Thursday Night
Partly cloudy, with a low around 73. West wind 3 to 5 mph.
Friday
Mostly sunny, with a high near 84. West wind around 6 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:
2:29 pm EDT Jun 26, 2026
Forecast Valid:
3pm EDT Jun 26, 2026-6pm EDT Jul 3, 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