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.

Fog and Breezy

49°F

9°C

Humidity 100%
Wind Speed SW 22 G 29 mph
Barometer 29.61 in (1002.6 mb)
Dewpoint 49°F (9°C)
Visibility 0.50 mi
Wind Chill42°F (6°C)
Last update 11 Jan 3:56 am EST
Extended Forecast for

Dennis MA

  • Overnight

    Overnight: Rain likely. Patchy fog. Otherwise, cloudy, with a low around 39. Southwest wind around 11 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 39 °F

    Rain Likely
    and Patchy
    Fog

  • Sunday

    Sunday: Rain likely, mainly before 7am. Patchy fog. Otherwise, cloudy, with a high near 43. West wind 8 to 13 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 43 °F

    Rain Likely
    and Patchy
    Fog

  • Sunday Night

    Sunday Night: A slight chance of rain and snow showers between 8pm and 10pm. Partly cloudy, with a low around 27. Breezy, with a west wind 17 to 23 mph, with gusts as high as 38 mph. Chance of precipitation is 20%.

    Low: 27 °F

    Breezy.
    Slight Chance
    Rain/Snow
    then Partly
    Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 38. Breezy, with a west wind 14 to 21 mph, with gusts as high as 32 mph.

    High: 38 °F

    Sunny and
    Breezy then
    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 31. Southwest wind around 10 mph.

    Low: 31 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 41. Southwest wind around 11 mph.

    High: 41 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 35. Southwest wind 10 to 15 mph.

    Low: 35 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Cloudy, with a high near 46. Southwest wind 11 to 15 mph.

    High: 46 °F

    Cloudy

  • Wednesday Night

    Wednesday Night: A chance of rain after 8pm. Cloudy, with a low around 33. Southwest wind 7 to 9 mph. Chance of precipitation is 40%.

    Low: 33 °F

    Chance Rain

Detailed Forecast

Overnight
Rain likely. Patchy fog. Otherwise, cloudy, with a low around 39. Southwest wind around 11 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Rain likely, mainly before 7am. Patchy fog. Otherwise, cloudy, with a high near 43. West wind 8 to 13 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
A slight chance of rain and snow showers between 8pm and 10pm. Partly cloudy, with a low around 27. Breezy, with a west wind 17 to 23 mph, with gusts as high as 38 mph. Chance of precipitation is 20%.
Monday
Mostly sunny, with a high near 38. Breezy, with a west wind 14 to 21 mph, with gusts as high as 32 mph.
Monday Night
Partly cloudy, with a low around 31. Southwest wind around 10 mph.
Tuesday
Sunny, with a high near 41. Southwest wind around 11 mph.
Tuesday Night
Mostly cloudy, with a low around 35. Southwest wind 10 to 15 mph.
Wednesday
Cloudy, with a high near 46. Southwest wind 11 to 15 mph.
Wednesday Night
A chance of rain after 8pm. Cloudy, with a low around 33. Southwest wind 7 to 9 mph. Chance of precipitation is 40%.
Thursday
A chance of rain. Mostly cloudy, with a high near 40. West wind 7 to 11 mph. Chance of precipitation is 30%.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 25. North wind 10 to 16 mph. Chance of precipitation is 40%.
Friday
A chance of snow. Partly sunny, with a high near 33. Northwest wind 14 to 16 mph. Chance of precipitation is 30%.
Friday Night
Mostly cloudy, with a low around 24. West wind around 11 mph.
Saturday
Mostly sunny, with a high near 37. Southwest 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:
12:18 am EST Jan 11, 2026
Forecast Valid:
4am EST Jan 11, 2026-6pm EST Jan 17, 2026
 
Forecast Discussion
 
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Additional Resources

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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