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.

Mostly Cloudy

42°F

6°C

Humidity 89%
Wind Speed S 5 mph
Barometer 29.42 in (996.4 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 15 Jan 2:56 am EST
Extended Forecast for

Dennis MA

  • Overnight

    Overnight: A chance of showers, mainly before 4am. Cloudy, with a low around 39. South wind around 8 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 39 °F

    Chance
    Showers

  • Thursday

    Thursday: Cloudy through mid morning, then gradual clearing, with a high near 49. Southwest wind 8 to 16 mph, with gusts as high as 26 mph.

    High: 49 °F

    Gradual
    Clearing

  • Thursday Night

    Thursday Night: Cloudy, then gradually becoming partly cloudy, with a low around 22. Southwest wind 14 to 18 mph, with gusts as high as 32 mph.

    Low: 22 °F

    Decreasing
    Clouds

  • Friday

    Friday: Sunny, with a high near 35. Breezy, with a west wind 15 to 22 mph, with gusts as high as 34 mph.

    High: 35 °F

    Sunny and
    Breezy then
    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 29. Southwest wind 7 to 11 mph.

    Low: 29 °F

    Mostly Cloudy

  • Saturday

    Saturday: A slight chance of snow before 10am, then a chance of rain between 10am and 4pm. Cloudy, with a high near 41. South wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

    High: 41 °F

    Chance
    Rain/Snow
    then Chance
    Rain

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 33. West wind around 8 mph.

    Low: 33 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of snow before 11am, then a chance of rain between 11am and 4pm, then snow likely after 4pm. Mostly cloudy, with a high near 40. Southwest wind 7 to 10 mph. Chance of precipitation is 60%.

    High: 40 °F

    Chance
    Rain/Snow
    then
    Rain/Snow
    Likely

  • Sunday Night

    Sunday Night: Snow likely, mainly before 11pm. Mostly cloudy, with a low around 26. Northwest wind 9 to 13 mph. Chance of precipitation is 70%.

    Low: 26 °F

    Snow Likely
    then Chance
    Snow

Detailed Forecast

Overnight
A chance of showers, mainly before 4am. Cloudy, with a low around 39. South wind around 8 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Cloudy through mid morning, then gradual clearing, with a high near 49. Southwest wind 8 to 16 mph, with gusts as high as 26 mph.
Thursday Night
Cloudy, then gradually becoming partly cloudy, with a low around 22. Southwest wind 14 to 18 mph, with gusts as high as 32 mph.
Friday
Sunny, with a high near 35. Breezy, with a west wind 15 to 22 mph, with gusts as high as 34 mph.
Friday Night
Mostly cloudy, with a low around 29. Southwest wind 7 to 11 mph.
Saturday
A slight chance of snow before 10am, then a chance of rain between 10am and 4pm. Cloudy, with a high near 41. South wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Saturday Night
Mostly cloudy, with a low around 33. West wind around 8 mph.
Sunday
A chance of snow before 11am, then a chance of rain between 11am and 4pm, then snow likely after 4pm. Mostly cloudy, with a high near 40. Southwest wind 7 to 10 mph. Chance of precipitation is 60%.
Sunday Night
Snow likely, mainly before 11pm. Mostly cloudy, with a low around 26. Northwest wind 9 to 13 mph. Chance of precipitation is 70%.
M.L.King Day
Mostly sunny, with a high near 33. Southwest wind 13 to 15 mph, with gusts as high as 26 mph.
Monday Night
Partly cloudy, with a low around 20. West wind around 16 mph.
Tuesday
Mostly sunny, with a high near 27. West wind 15 to 17 mph, with gusts as high as 28 mph.
Tuesday Night
Partly cloudy, with a low around 15. West wind around 17 mph.
Wednesday
Mostly sunny, with a high near 29. West wind around 15 mph, with gusts as high as 25 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Dennis MA
 41.74°N 70.21°W (Elev. 30 ft)
Last Update:
2:24 am EST Jan 15, 2026
Forecast Valid:
3am EST Jan 15, 2026-6pm EST Jan 21, 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