Severe Thunderstorms in the Ohio and Tennessee Valleys; Flash Flooding Possible in the Southwest

Scattered damaging winds, isolated severe hail, and a brief tornado or two are possible from the Upper Ohio to Tennessee Valleys during the late afternoon and evening. Across the Southwest, monsoonal moisture will continue to bring heavy rain and a threat for isolated to scattered flash flooding through Saturday. Read More >

Current conditions at

Hyannis, Barnstable Municipal-Boardman Airport (KHYA)

Lat: 41.67°NLon: 70.27°WElev: 49ft.

A Few Clouds

71°F

22°C

Humidity 90%
Wind Speed S 6 mph
Barometer 30.01 in (1016.2 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 6 Sep 5:56 am EDT
Extended Forecast for

East Dennis MA

  • Today

    Today: Mostly sunny, with a high near 80. South wind 10 to 14 mph, with gusts as high as 25 mph.

    High: 80 °F

    Mostly Sunny

  • Tonight

    Tonight: Showers likely, mainly after 4am.  Patchy fog after 9pm.  Otherwise, mostly cloudy, with a low around 62. Southwest wind 7 to 13 mph.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 62 °F

    Showers
    Likely and
    Patchy Fog

  • Sunday

    Sunday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 7am.  Patchy fog. High near 71. North wind around 8 mph.  Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 71 °F

    T-storms and
    Patchy Fog

  • Sunday Night

    Sunday Night: Showers likely, mainly before 8pm.  Mostly cloudy, with a low around 58. Northwest wind around 7 mph.  Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 58 °F

    Showers
    Likely

  • Monday

    Monday: Partly sunny, with a high near 72. Northwest wind 6 to 9 mph.

    High: 72 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 59. Light and variable wind.

    Low: 59 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 72. East wind around 10 mph.

    High: 72 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers after 2am.  Mostly cloudy, with a low around 60. East wind around 9 mph.  Chance of precipitation is 30%.

    Low: 60 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers.  Mostly cloudy, with a high near 72. Northeast wind around 11 mph.  Chance of precipitation is 50%.

    High: 72 °F

    Chance
    Showers

Detailed Forecast

Today
Mostly sunny, with a high near 80. South wind 10 to 14 mph, with gusts as high as 25 mph.
Tonight
Showers likely, mainly after 4am. Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 62. Southwest wind 7 to 13 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 7am. Patchy fog. High near 71. North wind around 8 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday Night
Showers likely, mainly before 8pm. Mostly cloudy, with a low around 58. Northwest wind around 7 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
Partly sunny, with a high near 72. Northwest wind 6 to 9 mph.
Monday Night
Mostly cloudy, with a low around 59. Light and variable wind.
Tuesday
Partly sunny, with a high near 72. East wind around 10 mph.
Tuesday Night
A chance of showers after 2am. Mostly cloudy, with a low around 60. East wind around 9 mph. Chance of precipitation is 30%.
Wednesday
A chance of showers. Mostly cloudy, with a high near 72. Northeast wind around 11 mph. Chance of precipitation is 50%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 59. North wind 6 to 8 mph. Chance of precipitation is 40%.
Thursday
Mostly sunny, with a high near 75. North wind around 9 mph becoming northeast in the afternoon.
Thursday Night
Partly cloudy, with a low around 57. South wind 6 to 11 mph becoming north after midnight.
Friday
Mostly sunny, with a high near 69. North wind around 14 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
East Dennis MA
 41.75°N 70.15°W (Elev. 13 ft)
3:54 am EDT Sep 6, 2025
6am EDT Sep 6, 2025-6pm EDT Sep 12, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database