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.

Overcast

67°F

19°C

Humidity 84%
Wind Speed SE 8 mph
Barometer 30.07 in (1018.5 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 17 Jun 2:56 pm EDT
Extended Forecast for

South Dennis MA

  • Tonight

    Tonight: A chance of showers, mainly between 10pm and 5am. Patchy fog before 11pm, then patchy fog after midnight. Otherwise, mostly cloudy, with a low around 61. Southeast wind 3 to 6 mph. Chance of precipitation is 30%.

    Low: 61 °F

    Chance
    Showers and
    Patchy Fog

  • Wednesday

    Wednesday: A chance of showers, mainly before 11am. Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 75. South wind 5 to 9 mph. Chance of precipitation is 40%.

    High: 75 °F

    Chance
    Showers and
    Patchy Fog

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms, mainly after 7pm. Patchy fog. Otherwise, mostly cloudy, with a low around 63. South wind around 6 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 63 °F

    Chance
    Showers and
    Patchy Fog

  • Juneteenth

    Juneteenth: A slight chance of showers before 10am. Patchy fog before 10am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 86. Southwest wind 6 to 13 mph. Chance of precipitation is 20%.

    High: 86 °F

    Slight Chance
    Showers and
    Patchy Fog
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: A slight chance of showers between 10pm and 2am. Partly cloudy, with a low around 65. Southwest wind 9 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.

    Low: 65 °F

    Slight Chance
    Showers

  • Friday

    Friday: Sunny, with a high near 77. West wind around 10 mph.

    High: 77 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 61. West wind around 6 mph.

    Low: 61 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 77. South wind 6 to 9 mph.

    High: 77 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 63. Southwest wind around 7 mph.

    Low: 63 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A chance of showers, mainly between 10pm and 5am. Patchy fog before 11pm, then patchy fog after midnight. Otherwise, mostly cloudy, with a low around 61. Southeast wind 3 to 6 mph. Chance of precipitation is 30%.
Wednesday
A chance of showers, mainly before 11am. Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 75. South wind 5 to 9 mph. Chance of precipitation is 40%.
Wednesday Night
A chance of showers and thunderstorms, mainly after 7pm. Patchy fog. Otherwise, mostly cloudy, with a low around 63. South wind around 6 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Juneteenth
A slight chance of showers before 10am. Patchy fog before 10am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 86. Southwest wind 6 to 13 mph. Chance of precipitation is 20%.
Thursday Night
A slight chance of showers between 10pm and 2am. Partly cloudy, with a low around 65. Southwest wind 9 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Friday
Sunny, with a high near 77. West wind around 10 mph.
Friday Night
Mostly clear, with a low around 61. West wind around 6 mph.
Saturday
Sunny, with a high near 77. South wind 6 to 9 mph.
Saturday Night
Mostly cloudy, with a low around 63. Southwest wind around 7 mph.
Sunday
Mostly sunny, with a high near 79. Southwest wind 8 to 11 mph.
Sunday Night
Partly cloudy, with a low around 64. Southwest wind around 7 mph.
Monday
Mostly sunny, with a high near 81. South wind 6 to 9 mph.
Monday Night
Partly cloudy, with a low around 66. Southwest wind around 7 mph.
Tuesday
Mostly sunny, with a high near 83. Southwest wind 7 to 10 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
South Dennis MA
 41.71°N 70.16°W (Elev. 49 ft)
Last Update:
2:02 pm EDT Jun 17, 2025
Forecast Valid:
3pm EDT Jun 17, 2025-6pm EDT Jun 24, 2025
 
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