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.

Fair

69°F

21°C

Humidity 96%
Wind Speed SW 5 mph
Barometer 29.92 in (1013.2 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 1 Aug 2:56 am EDT
Extended Forecast for

East Dennis MA

  • Overnight

    Overnight: Mostly cloudy, with a low around 65. Southwest wind around 5 mph.

    Low: 65 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 81. Southwest wind 3 to 8 mph.

    High: 81 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 69. Southwest wind 6 to 8 mph.

    Low: 69 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Sunday

    Sunday: Mostly cloudy, with a high near 80. South wind 7 to 10 mph.

    High: 80 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 3am. Low around 70. South wind around 8 mph. Chance of precipitation is 80%.

    Low: 70 °F

    Mostly Cloudy
    then Showers

  • Monday

    Monday: Showers and possibly a thunderstorm before 2pm, then a chance of showers between 2pm and 5pm, then a chance of showers and thunderstorms after 5pm. High near 81. Southwest wind 11 to 16 mph, with gusts as high as 29 mph. Chance of precipitation is 80%.

    High: 81 °F

    Showers

  • Monday Night

    Monday Night: Showers likely before 11pm, then showers likely and possibly a thunderstorm between 11pm and 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 69. Southwest wind 7 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.

    Low: 69 °F

    Showers
    Likely

  • Tuesday

    Tuesday: A chance of showers before 8am. Mostly sunny, with a high near 80. South wind around 8 mph. Chance of precipitation is 30%.

    High: 80 °F

    Chance
    Showers then
    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 69. South wind around 6 mph.

    Low: 69 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 65. Southwest wind around 5 mph.
Saturday
Mostly sunny, with a high near 81. Southwest wind 3 to 8 mph.
Saturday Night
Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 69. Southwest wind 6 to 8 mph.
Sunday
Mostly cloudy, with a high near 80. South wind 7 to 10 mph.
Sunday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 3am. Low around 70. South wind around 8 mph. Chance of precipitation is 80%.
Monday
Showers and possibly a thunderstorm before 2pm, then a chance of showers between 2pm and 5pm, then a chance of showers and thunderstorms after 5pm. High near 81. Southwest wind 11 to 16 mph, with gusts as high as 29 mph. Chance of precipitation is 80%.
Monday Night
Showers likely before 11pm, then showers likely and possibly a thunderstorm between 11pm and 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 69. Southwest wind 7 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.
Tuesday
A chance of showers before 8am. Mostly sunny, with a high near 80. South wind around 8 mph. Chance of precipitation is 30%.
Tuesday Night
Mostly cloudy, with a low around 69. South wind around 6 mph.
Wednesday
Partly sunny, with a high near 79. South wind 5 to 9 mph.
Wednesday Night
Mostly cloudy, with a low around 70. Southwest wind around 8 mph.
Thursday
Mostly sunny, with a high near 80. Southwest wind 8 to 13 mph.
Thursday Night
Partly cloudy, with a low around 71. Southwest wind around 10 mph.
Friday
Mostly sunny, with a high near 80. Southwest wind 8 to 10 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
East Dennis MA
 41.75°N 70.15°W (Elev. 13 ft)
Last Update:
3:03 am EDT Aug 1, 2026
Forecast Valid:
3am EDT Aug 1, 2026-6pm EDT Aug 7, 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