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.

Light Rain Fog/Mist

64°F

18°C

Humidity 90%
Wind Speed Calm
Barometer 30.05 in (1017.7 mb)
Dewpoint 61°F (16°C)
Visibility 5.00 mi
Last update 1 Sep 3:56 pm EDT
Extended Forecast for

Dennis Port MA

  • This Afternoon

    This Afternoon: Showers and possibly a thunderstorm. High near 72. Southeast wind around 10 mph. Chance of precipitation is 100%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 72 °F

    Showers

  • Tonight

    Tonight: Showers likely, mainly before 9pm. Patchy fog between 8pm and 11pm. Otherwise, cloudy, with a low around 63. East wind around 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 63 °F

    Showers
    Likely and
    Patchy Fog

  • Wednesday

    Wednesday: Partly sunny, with a high near 73. East wind around 10 mph, with gusts as high as 21 mph.

    High: 73 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers, mainly after 3am. Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 65. East wind 5 to 7 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 65 °F

    Mostly Cloudy
    then Chance
    Showers and
    Patchy Fog

  • Thursday

    Thursday: Showers likely, mainly between 8am and 2pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 77. South wind 9 to 11 mph. Chance of precipitation is 70%.

    High: 77 °F

    Showers
    Likely and
    Patchy Fog

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 1am. Mostly cloudy, with a low around 65. Southwest wind around 6 mph becoming northwest after midnight. Chance of precipitation is 30%.

    Low: 65 °F

    Chance
    Showers

  • Friday

    Friday: Mostly sunny, with a high near 76. Northwest wind 6 to 9 mph.

    High: 76 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 61. Northwest wind 3 to 8 mph.

    Low: 61 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 72. North wind 11 to 15 mph.

    High: 72 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Showers and possibly a thunderstorm. High near 72. Southeast wind around 10 mph. Chance of precipitation is 100%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers likely, mainly before 9pm. Patchy fog between 8pm and 11pm. Otherwise, cloudy, with a low around 63. East wind around 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Partly sunny, with a high near 73. East wind around 10 mph, with gusts as high as 21 mph.
Wednesday Night
A chance of showers, mainly after 3am. Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 65. East wind 5 to 7 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Showers likely, mainly between 8am and 2pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 77. South wind 9 to 11 mph. Chance of precipitation is 70%.
Thursday Night
A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 1am. Mostly cloudy, with a low around 65. Southwest wind around 6 mph becoming northwest after midnight. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 76. Northwest wind 6 to 9 mph.
Friday Night
Partly cloudy, with a low around 61. Northwest wind 3 to 8 mph.
Saturday
Mostly sunny, with a high near 72. North wind 11 to 15 mph.
Saturday Night
Partly cloudy, with a low around 60. North wind 7 to 9 mph.
Sunday
Sunny, with a high near 71. North wind around 14 mph.
Sunday Night
Mostly clear, with a low around 61. Northeast wind 3 to 6 mph.
Labor Day
Sunny, with a high near 74. North wind 7 to 10 mph becoming east in the afternoon.
Monday Night
Partly cloudy, with a low around 61. South wind around 7 mph becoming west after midnight.
Tuesday
Mostly sunny, with a high near 74.
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ABOUT THIS FORECAST

 
Point Forecast:
Dennis Port MA
 41.66°N 70.14°W (Elev. 13 ft)
Last Update:
7:04 am EDT Sep 1, 2026
Forecast Valid:
4pm EDT Sep 1, 2026-6pm EDT Sep 8, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation