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

50°F

10°C

Humidity 100%
Wind Speed S 9 mph
Barometer 29.65 in (1004.2 mb)
Dewpoint 50°F (10°C)
Visibility 0.50 mi
Wind Chill46°F (8°C)
Last update 12 Mar 1:56 am EDT
Extended Forecast for

Dennis MA

  • Overnight

    Overnight: A chance of showers and thunderstorms before 3am, then showers likely and possibly a thunderstorm between 3am and 4am, then a chance of showers and thunderstorms after 4am. Cloudy, with a low around 46. Southwest wind around 18 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 46 °F

    Showers
    Likely

  • Thursday

    Thursday: A chance of showers before 8am, then rain, mainly after 8am. Temperature rising to near 48 by 9am, then falling to around 37 during the remainder of the day. Southwest wind 13 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 80%.

    High: 48 °F⇓

    Rain

  • Thursday Night

    Thursday Night: Rain likely, possibly mixed with snow before 7pm, then a chance of snow between 7pm and 11pm. Cloudy during the early evening, then gradual clearing, with a low around 29. Northwest wind 13 to 18 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 29 °F

    Rain/Snow
    Likely then
    Mostly Clear

  • Friday

    Friday: Increasing clouds, with a high near 40. West wind 7 to 13 mph becoming south in the afternoon.

    High: 40 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: A slight chance of rain after 2am. Mostly cloudy, with a low around 35. South wind 13 to 17 mph. Chance of precipitation is 20%.

    Low: 35 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Saturday

    Saturday: Sunny, with a high near 45. Breezy, with a west wind 18 to 22 mph, with gusts as high as 36 mph.

    High: 45 °F

    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 31. Northwest wind 10 to 16 mph.

    Low: 31 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 43. North wind 6 to 8 mph becoming southeast in the afternoon.

    High: 43 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: A chance of rain after 1am. Cloudy, with a low around 36. Breezy, with a southeast wind 13 to 22 mph. Chance of precipitation is 40%.

    Low: 36 °F

    Mostly Cloudy
    then Chance
    Rain and
    Breezy

Detailed Forecast

Overnight
A chance of showers and thunderstorms before 3am, then showers likely and possibly a thunderstorm between 3am and 4am, then a chance of showers and thunderstorms after 4am. Cloudy, with a low around 46. Southwest wind around 18 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers before 8am, then rain, mainly after 8am. Temperature rising to near 48 by 9am, then falling to around 37 during the remainder of the day. Southwest wind 13 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 80%.
Thursday Night
Rain likely, possibly mixed with snow before 7pm, then a chance of snow between 7pm and 11pm. Cloudy during the early evening, then gradual clearing, with a low around 29. Northwest wind 13 to 18 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Friday
Increasing clouds, with a high near 40. West wind 7 to 13 mph becoming south in the afternoon.
Friday Night
A slight chance of rain after 2am. Mostly cloudy, with a low around 35. South wind 13 to 17 mph. Chance of precipitation is 20%.
Saturday
Sunny, with a high near 45. Breezy, with a west wind 18 to 22 mph, with gusts as high as 36 mph.
Saturday Night
Partly cloudy, with a low around 31. Northwest wind 10 to 16 mph.
Sunday
Mostly cloudy, with a high near 43. North wind 6 to 8 mph becoming southeast in the afternoon.
Sunday Night
A chance of rain after 1am. Cloudy, with a low around 36. Breezy, with a southeast wind 13 to 22 mph. Chance of precipitation is 40%.
Monday
Rain. High near 53. Windy, with a south wind 25 to 28 mph, with gusts as high as 41 mph. Chance of precipitation is 90%.
Monday Night
Rain. Low around 35. Windy, with a south wind 24 to 28 mph, with gusts as high as 38 mph. Chance of precipitation is 80%.
Tuesday
A chance of rain. Partly sunny, with a high near 42. West wind around 17 mph. Chance of precipitation is 30%.
Tuesday Night
Partly cloudy, with a low around 25. Northwest wind around 15 mph.
Wednesday
Mostly sunny, with a high near 35. Northwest wind 8 to 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:
2:32 am EDT Mar 12, 2026
Forecast Valid:
2am EDT Mar 12, 2026-6pm EDT Mar 18, 2026
 
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