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

64°F

18°C

Humidity 84%
Wind Speed N 5 mph
Barometer 30.10 in (1019.2 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 12 Jul 5:56 am EDT
Extended Forecast for

South Dennis MA

  • Today

    Today: Sunny, with a high near 84. Calm wind becoming north 5 to 7 mph in the morning.

    High: 84 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 60. Calm wind.

    Low: 60 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 86. Light southwest wind becoming south 6 to 11 mph in the morning. Winds could gust as high as 21 mph.

    High: 86 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 71. Southwest wind around 9 mph, with gusts as high as 20 mph.

    Low: 71 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 91. Southwest wind 10 to 14 mph, with gusts as high as 26 mph.

    High: 91 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 75. Southwest wind 13 to 15 mph, with gusts as high as 28 mph.

    Low: 75 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 92. West wind around 11 mph, with gusts as high as 21 mph.

    High: 92 °F

    Hot

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 71. Northwest wind 3 to 6 mph.

    Low: 71 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 88. Northwest wind around 7 mph.

    High: 88 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 84. Calm wind becoming north 5 to 7 mph in the morning.
Tonight
Mostly clear, with a low around 60. Calm wind.
Monday
Sunny, with a high near 86. Light southwest wind becoming south 6 to 11 mph in the morning. Winds could gust as high as 21 mph.
Monday Night
Mostly clear, with a low around 71. Southwest wind around 9 mph, with gusts as high as 20 mph.
Tuesday
Sunny and hot, with a high near 91. Southwest wind 10 to 14 mph, with gusts as high as 26 mph.
Tuesday Night
Mostly clear, with a low around 75. Southwest wind 13 to 15 mph, with gusts as high as 28 mph.
Wednesday
Sunny and hot, with a high near 92. West wind around 11 mph, with gusts as high as 21 mph.
Wednesday Night
Partly cloudy, with a low around 71. Northwest wind 3 to 6 mph.
Thursday
Sunny, with a high near 88. Northwest wind around 7 mph.
Thursday Night
Partly cloudy, with a low around 70. West wind around 6 mph.
Friday
Mostly sunny, with a high near 87. West wind 5 to 8 mph.
Friday Night
Partly cloudy, with a low around 69. South wind around 6 mph becoming west after midnight.
Saturday
Mostly sunny, with a high near 85. North wind around 7 mph becoming southeast in the afternoon.
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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:
2:03 am EDT Jul 12, 2026
Forecast Valid:
6am EDT Jul 12, 2026-6pm EDT Jul 18, 2026
 
Forecast Discussion
 
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Additional Resources

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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