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

27°C

81°F

Humidity 74%
Wind Speed SW 20 km/h
Barometer 1017.4 mb (30.04 in)
Dewpoint 22°C (72°F)
Visibility 16 km
Heat Index29°C (85°F)
Last update 15 Jul 4:56 pm EDT
Extended Forecast for

East Dennis MA

  • Tonight

    Tonight: Patchy fog after 1am. Otherwise, increasing clouds, with a low around 21. Southwest wind 5 to 11 km/h.

    Low: 21 °C

    Mostly Cloudy
    then Patchy
    Fog

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 29. Southwest wind 5 to 13 km/h.

    High: 29 °C

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Patchy fog after midnight. Otherwise, increasing clouds, with a low around 23. Southwest wind 11 to 13 km/h.

    Low: 23 °C

    Mostly Cloudy
    then Patchy
    Fog

  • Thursday

    Thursday: A chance of showers and thunderstorms before 2pm, then a slight chance of showers between 2pm and 5pm, then a slight chance of showers and thunderstorms after 5pm. Mostly cloudy, with a high near 29. Southwest wind 14 to 21 km/h. Chance of precipitation is 30%.

    High: 29 °C

    Chance
    Showers then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 2am. Partly cloudy, with a low around 22. Southwest wind 14 to 18 km/h. Chance of precipitation is 20%.

    Low: 22 °C

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Friday

    Friday: Mostly sunny, with a high near 28. West wind around 14 km/h becoming north in the afternoon.

    High: 28 °C

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 19. North wind around 10 km/h.

    Low: 19 °C

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 27. North wind around 11 km/h becoming east in the afternoon.

    High: 27 °C

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 19. South wind 8 to 10 km/h.

    Low: 19 °C

    Mostly Cloudy

Detailed Forecast

Tonight
Patchy fog after 1am. Otherwise, increasing clouds, with a low around 21. Southwest wind 5 to 11 km/h.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 29. Southwest wind 5 to 13 km/h.
Wednesday Night
Patchy fog after midnight. Otherwise, increasing clouds, with a low around 23. Southwest wind 11 to 13 km/h.
Thursday
A chance of showers and thunderstorms before 2pm, then a slight chance of showers between 2pm and 5pm, then a slight chance of showers and thunderstorms after 5pm. Mostly cloudy, with a high near 29. Southwest wind 14 to 21 km/h. Chance of precipitation is 30%.
Thursday Night
A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 2am. Partly cloudy, with a low around 22. Southwest wind 14 to 18 km/h. Chance of precipitation is 20%.
Friday
Mostly sunny, with a high near 28. West wind around 14 km/h becoming north in the afternoon.
Friday Night
Partly cloudy, with a low around 19. North wind around 10 km/h.
Saturday
Sunny, with a high near 27. North wind around 11 km/h becoming east in the afternoon.
Saturday Night
Mostly cloudy, with a low around 19. South wind 8 to 10 km/h.
Sunday
A chance of showers after 1pm. Partly sunny, with a high near 27. South wind 10 to 16 km/h. Chance of precipitation is 30%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 20. South wind 11 to 13 km/h. Chance of precipitation is 40%.
Monday
Mostly sunny, with a high near 27. North wind around 14 km/h.
Monday Night
Partly cloudy, with a low around 19. Southeast wind around 8 km/h becoming northwest in the evening.
Tuesday
Mostly sunny, with a high near 26. Northeast wind 10 to 13 km/h.
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ABOUT THIS FORECAST

 
Point Forecast:
East Dennis MA
 41.75°N 70.15°W (Elev. 13 m)
Last Update:
3:27 pm EDT Jul 15, 2025
Forecast Valid:
5pm EDT Jul 15, 2025-6pm EDT Jul 22, 2025
 
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