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

74°F

23°C

Humidity 97%
Wind Speed SW 7 mph
Barometer 30.08 in (1018.8 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Last update 15 Jul 8:56 am EDT
Extended Forecast for

Dennis MA

  • Today

    Today: A slight chance of showers and thunderstorms before 10am. Partly sunny, with a high near 83. Southwest wind 6 to 9 mph. Chance of precipitation is 20%.

    High: 83 °F

    Slight Chance
    T-storms then
    Mostly Sunny

  • Tonight

    Tonight: Patchy fog after 3am. Otherwise, increasing clouds, with a low around 69. Southwest wind 6 to 8 mph.

    Low: 69 °F

    Partly Cloudy
    then Patchy
    Fog

  • Wednesday

    Wednesday: Patchy fog before 7am. Otherwise, mostly sunny, with a high near 85. Southwest wind 6 to 10 mph.

    High: 85 °F

    Patchy Fog
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 71. Southwest wind around 9 mph.

    Low: 71 °F

    Increasing
    Clouds

  • Thursday

    Thursday: A slight chance of showers and thunderstorms before 11am, then a slight chance of showers between 11am and 2pm, then a slight chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 84. Southwest wind 9 to 13 mph. Chance of precipitation is 20%.

    High: 84 °F

    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 72. Southwest wind 9 to 11 mph.

    Low: 72 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 87. West wind around 9 mph.

    High: 87 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 68. North wind around 6 mph.

    Low: 68 °F

    Mostly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 80. North wind around 7 mph.

    High: 80 °F

    Sunny

Detailed Forecast

Today
A slight chance of showers and thunderstorms before 10am. Partly sunny, with a high near 83. Southwest wind 6 to 9 mph. Chance of precipitation is 20%.
Tonight
Patchy fog after 3am. Otherwise, increasing clouds, with a low around 69. Southwest wind 6 to 8 mph.
Wednesday
Patchy fog before 7am. Otherwise, mostly sunny, with a high near 85. Southwest wind 6 to 10 mph.
Wednesday Night
Increasing clouds, with a low around 71. Southwest wind around 9 mph.
Thursday
A slight chance of showers and thunderstorms before 11am, then a slight chance of showers between 11am and 2pm, then a slight chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 84. Southwest wind 9 to 13 mph. Chance of precipitation is 20%.
Thursday Night
Partly cloudy, with a low around 72. Southwest wind 9 to 11 mph.
Friday
Mostly sunny, with a high near 87. West wind around 9 mph.
Friday Night
Mostly cloudy, with a low around 68. North wind around 6 mph.
Saturday
Sunny, with a high near 80. North wind around 7 mph.
Saturday Night
Partly cloudy, with a low around 67. Southwest wind 3 to 5 mph.
Sunday
Partly sunny, with a high near 82. South wind 5 to 9 mph.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 68. South wind around 8 mph. Chance of precipitation is 40%.
Monday
A chance of showers. Mostly sunny, with a high near 81. West wind around 9 mph becoming south in the afternoon. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Dennis MA
 41.73°N 70.18°W (Elev. 121 ft)
Last Update:
7:45 am EDT Jul 15, 2025
Forecast Valid:
9am EDT Jul 15, 2025-6pm EDT Jul 21, 2025
 
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