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.

A Few Clouds

72°F

22°C

Humidity 84%
Wind Speed S 9 mph
Barometer 30.03 in (1017.1 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 30 Jun 6:56 pm EDT
Extended Forecast for

Barnstable MA

Heat Advisory July 1, 10:00am until July 4, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Tonight

    Tonight: A chance of showers, mainly after 2am. Mostly cloudy, with a low around 69. Southwest wind 8 to 11 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 69 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 84. Southwest wind 15 to 18 mph, with gusts as high as 29 mph.

    High: 84 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms between 4am and 5am. Partly cloudy, with a low around 72. Southwest wind 13 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    Low: 72 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Thursday

    Thursday: Sunny and hot, with a high near 90. Heat index values as high as 98. Southwest wind 13 to 15 mph, with gusts as high as 25 mph.

    High: 90 °F

    Hot

  • Thursday Night

    Thursday Night: Clear, with a low around 74. Southwest wind 8 to 13 mph.

    Low: 74 °F

    Clear

  • Friday

    Friday: Sunny and hot, with a high near 95. West wind 7 to 9 mph.

    High: 95 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 76. West wind 5 to 8 mph.

    Low: 76 °F

    Mostly Clear

  • Independence Day

    Independence Day: Mostly sunny and hot, with a high near 91. Southwest wind 3 to 8 mph.

    High: 91 °F

    Hot

  • Saturday Night

    Saturday Night: A chance of showers. Mostly cloudy, with a low around 72. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.

    Low: 72 °F

    Chance
    Showers

Detailed Forecast

Tonight
A chance of showers, mainly after 2am. Mostly cloudy, with a low around 69. Southwest wind 8 to 11 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 84. Southwest wind 15 to 18 mph, with gusts as high as 29 mph.
Wednesday Night
A slight chance of showers and thunderstorms between 4am and 5am. Partly cloudy, with a low around 72. Southwest wind 13 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Thursday
Sunny and hot, with a high near 90. Heat index values as high as 98. Southwest wind 13 to 15 mph, with gusts as high as 25 mph.
Thursday Night
Clear, with a low around 74. Southwest wind 8 to 13 mph.
Friday
Sunny and hot, with a high near 95. West wind 7 to 9 mph.
Friday Night
Mostly clear, with a low around 76. West wind 5 to 8 mph.
Independence Day
Mostly sunny and hot, with a high near 91. Southwest wind 3 to 8 mph.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 72. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 85. Light and variable wind becoming northeast 5 to 7 mph in the morning.
Sunday Night
A chance of showers. Partly cloudy, with a low around 70. Light southeast wind. Chance of precipitation is 30%.
Monday
A chance of showers. Partly sunny, with a high near 83. East wind 3 to 8 mph. Chance of precipitation is 40%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 69. East wind 3 to 5 mph. Chance of precipitation is 30%.
Tuesday
Mostly sunny, with a high near 82. North wind 6 to 9 mph becoming east in the afternoon.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Barnstable MA
 41.71°N 70.31°W (Elev. 16 ft)
Last Update:
3:34 pm EDT Jun 30, 2026
Forecast Valid:
7pm EDT Jun 30, 2026-6pm EDT Jul 7, 2026
 
Forecast Discussion
 
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Additional Resources

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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