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Hazardous Weather Conditions

Current conditions at

Hyannis, Barnstable Municipal-Boardman Airport (KHYA)

Lat: 41.67°NLon: 70.27°WElev: 49ft.

Fair

72°F

22°C

Humidity 91%
Wind Speed SW 7 mph
Barometer 29.94 in (1013.9 mb)
Dewpoint 69°F (21°C)
Visibility 8.00 mi
Last update 2 Jul 5:56 am EDT
Extended Forecast for

East Dennis MA

Heat Advisory July 2, 06:09am until July 4, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory July 2, 06:09am until July 4, 08:00pm

    NOW until 8:00pm Sat

    Heat Advisory

  • Today

    High: 89 °F

    Partly Sunny
    then Isolated
    T-storms

  • Tonight

    Tonight: Isolated showers and thunderstorms. Patchy fog between 2am and 3am. Otherwise, partly cloudy, with a low around 72. Southwest wind 8 to 13 mph. Chance of precipitation is 20%.

    Low: 72 °F

    Isolated
    T-storms and
    Patchy Fog

  • Friday

    Friday: Isolated showers and thunderstorms. Mostly sunny and hot, with a high near 97. Heat index values as high as 104. West wind 7 to 9 mph. Chance of precipitation is 20%.

    High: 97 °F

    Isolated
    T-storms

  • Friday Night

    Friday Night: Scattered showers and thunderstorms, mainly between 1am and 5am. Mostly cloudy, with a low around 74. West wind 7 to 9 mph. Chance of precipitation is 30%.

    Low: 74 °F

    Scattered
    T-storms

  • Independence Day

    Independence Day: Scattered showers and thunderstorms, mainly after 10am. Partly sunny and hot, with a high near 92. West wind around 9 mph. Chance of precipitation is 50%.

    High: 92 °F

    Scattered
    T-storms

  • Saturday Night

    Saturday Night: Scattered showers and thunderstorms, mainly before 9pm. Partly cloudy, with a low around 70. Calm wind becoming northwest around 5 mph after midnight. Chance of precipitation is 30%.

    Low: 70 °F

    Scattered
    T-storms

  • Sunday

    Sunday: Mostly sunny, with a high near 75. North wind around 6 mph.

    High: 75 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A chance of showers after 3am. Mostly cloudy, with a low around 63. Southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.

    Low: 63 °F

    Partly Cloudy
    then Chance
    Showers

Detailed Forecast

Today
Isolated showers between 1pm and 2pm, then isolated showers and thunderstorms after 2pm. Mostly sunny, with a high near 89. Southwest wind 11 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.
Tonight
Isolated showers and thunderstorms. Patchy fog between 2am and 3am. Otherwise, partly cloudy, with a low around 72. Southwest wind 8 to 13 mph. Chance of precipitation is 20%.
Friday
Isolated showers and thunderstorms. Mostly sunny and hot, with a high near 97. Heat index values as high as 104. West wind 7 to 9 mph. Chance of precipitation is 20%.
Friday Night
Scattered showers and thunderstorms, mainly between 1am and 5am. Mostly cloudy, with a low around 74. West wind 7 to 9 mph. Chance of precipitation is 30%.
Independence Day
Scattered showers and thunderstorms, mainly after 10am. Partly sunny and hot, with a high near 92. West wind around 9 mph. Chance of precipitation is 50%.
Saturday Night
Scattered showers and thunderstorms, mainly before 9pm. Partly cloudy, with a low around 70. Calm wind becoming northwest around 5 mph after midnight. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 75. North wind around 6 mph.
Sunday Night
A chance of showers after 3am. Mostly cloudy, with a low around 63. Southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Monday
A chance of showers. Partly sunny, with a high near 75. East wind 6 to 8 mph. Chance of precipitation is 30%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 60. East wind 5 to 7 mph. Chance of precipitation is 40%.
Tuesday
A chance of showers. Mostly sunny, with a high near 74. East wind 8 to 10 mph. Chance of precipitation is 30%.
Tuesday Night
Partly cloudy, with a low around 62. East wind 5 to 7 mph.
Wednesday
Mostly sunny, with a high near 74. Northeast wind 6 to 8 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
East Dennis MA
 41.75°N 70.15°W (Elev. 13 ft)
Last Update:
5:16 am EDT Jul 2, 2026
Forecast Valid:
6am EDT Jul 2, 2026-6pm EDT Jul 8, 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