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

39°F

4°C

Humidity 79%
Wind Speed S 7 mph
Barometer 30.12 in (1020.1 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 17 Jan 8:56 am EST
Extended Forecast for

Dennis MA

  • Today

    Today: A chance of rain, mainly after 3pm. Partly sunny, with a high near 45. South wind 10 to 14 mph. Chance of precipitation is 30%.

    High: 45 °F

    Chance Rain

  • Tonight

    Tonight: A chance of rain, mainly before 7pm. Patchy fog before 8pm. Otherwise, increasing clouds, with a low around 32. Southwest wind 5 to 10 mph. Chance of precipitation is 30%.

    Low: 32 °F

    Chance Rain
    and Patchy
    Fog then
    Mostly Cloudy

  • Sunday

    Sunday: A slight chance of snow before 10am, then a chance of rain between 10am and noon, then snow after noon. High near 39. Southwest wind 5 to 7 mph becoming calm in the afternoon. Chance of precipitation is 90%. Little or no snow accumulation expected.

    High: 39 °F

    Chance
    Rain/Snow
    then Snow

  • Sunday Night

    Sunday Night: Snow, mainly before midnight. Low around 27. South wind around 6 mph becoming light and variable after midnight. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.

    Low: 27 °F

    Snow then
    Chance Snow

  • M.L.King Day

    M.L.King Day: Mostly sunny, with a high near 35. Southwest wind 7 to 17 mph, with gusts as high as 30 mph.

    High: 35 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 21. West wind 11 to 14 mph, with gusts as high as 26 mph.

    Low: 21 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 27. West wind 11 to 15 mph, with gusts as high as 28 mph.

    High: 27 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 18. West wind around 14 mph.

    Low: 18 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 37. Southwest wind 11 to 15 mph, with gusts as high as 25 mph.

    High: 37 °F

    Mostly Sunny

Detailed Forecast

Today
A chance of rain, mainly after 3pm. Partly sunny, with a high near 45. South wind 10 to 14 mph. Chance of precipitation is 30%.
Tonight
A chance of rain, mainly before 7pm. Patchy fog before 8pm. Otherwise, increasing clouds, with a low around 32. Southwest wind 5 to 10 mph. Chance of precipitation is 30%.
Sunday
A slight chance of snow before 10am, then a chance of rain between 10am and noon, then snow after noon. High near 39. Southwest wind 5 to 7 mph becoming calm in the afternoon. Chance of precipitation is 90%. Little or no snow accumulation expected.
Sunday Night
Snow, mainly before midnight. Low around 27. South wind around 6 mph becoming light and variable after midnight. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.
M.L.King Day
Mostly sunny, with a high near 35. Southwest wind 7 to 17 mph, with gusts as high as 30 mph.
Monday Night
Partly cloudy, with a low around 21. West wind 11 to 14 mph, with gusts as high as 26 mph.
Tuesday
Mostly sunny, with a high near 27. West wind 11 to 15 mph, with gusts as high as 28 mph.
Tuesday Night
Mostly clear, with a low around 18. West wind around 14 mph.
Wednesday
Mostly sunny, with a high near 37. Southwest wind 11 to 15 mph, with gusts as high as 25 mph.
Wednesday Night
A chance of snow showers after 4am. Mostly cloudy, with a low around 29. Southwest wind around 14 mph. Chance of precipitation is 30%.
Thursday
A chance of rain and snow showers. Partly sunny, with a high near 39. Southwest wind 13 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Thursday Night
A chance of snow showers. Mostly cloudy, with a low around 25. West wind around 11 mph. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 33. Northwest wind around 11 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:
5:56 am EST Jan 17, 2026
Forecast Valid:
9am EST Jan 17, 2026-6pm EST Jan 23, 2026
 
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Additional Resources

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Chance of Precipitation