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

Hazardous Weather Conditions

Current conditions at

Hyannis, Barnstable Municipal-Boardman Airport (KHYA)

Lat: 41.67°NLon: 70.27°WElev: 49ft.

Overcast

73°F

23°C

Humidity 94%
Wind Speed SW 10 mph
Barometer 29.89 in (1012.1 mb)
Dewpoint 71°F (22°C)
Visibility 7.00 mi
Last update 22 Jul 10:56 pm EDT
Extended Forecast for

Dennis MA

High Surf Advisory July 22, 11:49pm until July 23, 08:00pm
Click here for hazard details and duration
High Surf Advisory
  •  
    High Surf Advisory July 22, 11:49pm until July 23, 08:00pm

    NOW until 8:00pm Thu

    High Surf Advisory

  • Tonight

    Low: 65 °F

    Chance
    Showers

  • Thursday

    Thursday: Mostly sunny, with a high near 77. North wind 5 to 10 mph.

    High: 77 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 60. Light and variable wind.

    Low: 60 °F

    Mostly Clear

  • Friday

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

    High: 80 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 65. Light southeast wind.

    Low: 65 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 79. Northeast wind 3 to 7 mph.

    High: 79 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 65. Light east wind.

    Low: 65 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 74. Northeast wind 5 to 7 mph.

    High: 74 °F

    Mostly Sunny

Detailed Forecast

Tonight
A chance of showers, mainly between midnight and 2am. Mostly cloudy, with a low around 65. Southwest wind 5 to 7 mph becoming north after midnight. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Mostly sunny, with a high near 77. North wind 5 to 10 mph.
Thursday Night
Mostly clear, with a low around 60. Light and variable wind.
Friday
Sunny, with a high near 80. Calm wind becoming east around 6 mph in the afternoon.
Friday Night
Mostly clear, with a low around 65. Light southeast wind.
Saturday
Mostly sunny, with a high near 79. Northeast wind 3 to 7 mph.
Saturday Night
Partly cloudy, with a low around 65. Light east wind.
Sunday
Mostly sunny, with a high near 74. Northeast wind 5 to 7 mph.
Sunday Night
Partly cloudy, with a low around 66. Light and variable wind.
Monday
Mostly sunny, with a high near 76. South wind 5 to 8 mph.
Monday Night
A chance of showers. Partly cloudy, with a low around 67. Southwest wind around 6 mph. Chance of precipitation is 30%.
Tuesday
A chance of showers. Mostly sunny, with a high near 77. South wind 7 to 10 mph. Chance of precipitation is 30%.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 68. South wind around 7 mph. Chance of precipitation is 40%.
Wednesday
A chance of showers. Partly sunny, with a high near 77. South wind 8 to 10 mph. Chance of precipitation is 40%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Dennis MA
 41.73°N 70.18°W (Elev. 121 ft)
Last Update:
2:31 pm EDT Jul 22, 2026
Forecast Valid:
11pm EDT Jul 22, 2026-6pm EDT Jul 29, 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