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.

Mostly Cloudy

72°F

22°C

Humidity 94%
Wind Speed SW 9 mph
Barometer 30.00 in (1016.1 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 2 Aug 2:56 am EDT
Extended Forecast for

East Dennis MA

  • Overnight

    Overnight: Cloudy, with a low around 69. Southwest wind around 7 mph.

    Low: 69 °F

    Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 80. South wind 8 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. Patchy fog after 1am. Low around 71. South wind 7 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 71 °F

    Chance
    Showers then
    Showers and
    Patchy Fog

  • Monday

    Monday: Showers and possibly a thunderstorm before 1pm, then showers likely. Patchy fog before 9am. High near 80. Southwest wind 14 to 17 mph, with gusts as high as 31 mph. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 80 °F

    Showers and
    Patchy Fog

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 69. Southwest wind 8 to 13 mph. Chance of precipitation is 60%.

    Low: 69 °F

    Showers
    Likely

  • Tuesday

    Tuesday: A chance of showers, mainly before 8am. Mostly sunny, with a high near 79. West wind 5 to 7 mph. Chance of precipitation is 30%.

    High: 79 °F

    Chance
    Showers then
    Mostly Sunny

  • Tuesday Night

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

    Low: 69 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 77. South wind 3 to 8 mph.

    High: 77 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 70. Southwest wind around 7 mph.

    Low: 70 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Cloudy, with a low around 69. Southwest wind around 7 mph.
Sunday
Mostly cloudy, with a high near 80. South wind 8 to 10 mph.
Sunday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 3am. Patchy fog after 1am. Low around 71. South wind 7 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Monday
Showers and possibly a thunderstorm before 1pm, then showers likely. Patchy fog before 9am. High near 80. Southwest wind 14 to 17 mph, with gusts as high as 31 mph. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.
Monday Night
A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 69. Southwest wind 8 to 13 mph. Chance of precipitation is 60%.
Tuesday
A chance of showers, mainly before 8am. Mostly sunny, with a high near 79. West wind 5 to 7 mph. Chance of precipitation is 30%.
Tuesday Night
Mostly cloudy, with a low around 69. Southwest wind around 6 mph.
Wednesday
Partly sunny, with a high near 77. South wind 3 to 8 mph.
Wednesday Night
Mostly cloudy, with a low around 70. Southwest wind around 7 mph.
Thursday
Mostly sunny, with a high near 79. Southwest wind 8 to 13 mph.
Thursday Night
Partly cloudy, with a low around 71. Southwest wind 8 to 10 mph.
Friday
Mostly sunny, with a high near 79. Southwest wind 7 to 10 mph.
Friday Night
Partly cloudy, with a low around 71. Southwest wind 7 to 10 mph.
Saturday
Mostly sunny, with a high near 80. Southwest wind 6 to 8 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
East Dennis MA
 41.75°N 70.15°W (Elev. 13 ft)
Last Update:
1:20 am EDT Aug 2, 2026
Forecast Valid:
3am EDT Aug 2, 2026-6pm EDT Aug 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