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 59%
Wind Speed SW 9 mph
Barometer 29.90 in (1012.6 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 15 Apr 12:56 pm EDT
Extended Forecast for

Dennis MA

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 61. Northeast wind around 6 mph becoming east.

    High: 61 °F

    Partly Sunny

  • Tonight

    Tonight: A chance of showers and thunderstorms. Patchy fog between 7pm and 5am. Otherwise, cloudy, with a low around 47. South wind 6 to 9 mph becoming west after midnight. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 47 °F

    Chance
    T-storms and
    Patchy Fog

  • Thursday

    Thursday: Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 59. Southwest wind 6 to 10 mph.

    High: 59 °F

    Patchy Fog
    then Partly
    Sunny

  • Thursday Night

    Thursday Night: A slight chance of showers. Mostly cloudy, with a low around 48. Southwest wind 7 to 9 mph. Chance of precipitation is 20%.

    Low: 48 °F

    Slight Chance
    Showers

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 5pm. Mostly cloudy, with a high near 61. Southwest wind 6 to 9 mph becoming northwest in the afternoon. Chance of precipitation is 40%.

    High: 61 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 1am. Mostly cloudy, with a low around 44. North wind around 6 mph. Chance of precipitation is 20%.

    Low: 44 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Saturday

    Saturday: Mostly cloudy, with a high near 52. Northeast wind around 8 mph.

    High: 52 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 44. East wind around 6 mph becoming south after midnight.

    Low: 44 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of showers after 9am. Mostly cloudy, with a high near 56. South wind 9 to 13 mph. Chance of precipitation is 40%.

    High: 56 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Partly sunny, with a high near 61. Northeast wind around 6 mph becoming east.
Tonight
A chance of showers and thunderstorms. Patchy fog between 7pm and 5am. Otherwise, cloudy, with a low around 47. South wind 6 to 9 mph becoming west after midnight. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 59. Southwest wind 6 to 10 mph.
Thursday Night
A slight chance of showers. Mostly cloudy, with a low around 48. Southwest wind 7 to 9 mph. Chance of precipitation is 20%.
Friday
A chance of showers, with thunderstorms also possible after 5pm. Mostly cloudy, with a high near 61. Southwest wind 6 to 9 mph becoming northwest in the afternoon. Chance of precipitation is 40%.
Friday Night
A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 1am. Mostly cloudy, with a low around 44. North wind around 6 mph. Chance of precipitation is 20%.
Saturday
Mostly cloudy, with a high near 52. Northeast wind around 8 mph.
Saturday Night
Mostly cloudy, with a low around 44. East wind around 6 mph becoming south after midnight.
Sunday
A chance of showers after 9am. Mostly cloudy, with a high near 56. South wind 9 to 13 mph. Chance of precipitation is 40%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 39. West wind 13 to 15 mph. Chance of precipitation is 50%.
Monday
A chance of showers. Partly sunny, with a high near 48. West wind around 16 mph. Chance of precipitation is 30%.
Monday Night
Partly cloudy, with a low around 35. Northwest wind 11 to 13 mph.
Tuesday
Sunny, with a high near 49. Northwest wind 10 to 13 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Dennis MA
 41.74°N 70.21°W (Elev. 30 ft)
Last Update:
10:56 am EDT Apr 15, 2026
Forecast Valid:
1pm EDT Apr 15, 2026-6pm EDT Apr 21, 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