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.

Overcast

60°F

16°C

Humidity 90%
Wind Speed N 6 mph
Barometer 30.15 in (1020.9 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 4 Oct 5:56 pm EDT
Extended Forecast for

South Dennis MA

  • Tonight

    Tonight: Showers, mainly before 11pm. Patchy fog after 7pm. Low around 54. East wind around 6 mph becoming calm in the evening. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 54 °F

    Showers and
    Patchy Fog
    then Chance
    Showers and
    Patchy Fog

  • Monday

    Monday: Mostly cloudy through mid morning, then gradual clearing, with a high near 67. West wind 5 to 11 mph.

    High: 67 °F

    Becoming
    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 46. West wind around 11 mph, with gusts as high as 23 mph.

    Low: 46 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 59. Northwest wind 9 to 11 mph, with gusts as high as 22 mph.

    High: 59 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 44. West wind 5 to 7 mph.

    Low: 44 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 62. Light southwest wind increasing to 6 to 11 mph in the morning.

    High: 62 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 55. Southwest wind around 9 mph.

    Low: 55 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 67. Southwest wind 7 to 10 mph.

    High: 67 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 54. West wind around 6 mph.

    Low: 54 °F

    Mostly Clear

Detailed Forecast

Tonight
Showers, mainly before 11pm. Patchy fog after 7pm. Low around 54. East wind around 6 mph becoming calm in the evening. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Monday
Mostly cloudy through mid morning, then gradual clearing, with a high near 67. West wind 5 to 11 mph.
Monday Night
Clear, with a low around 46. West wind around 11 mph, with gusts as high as 23 mph.
Tuesday
Sunny, with a high near 59. Northwest wind 9 to 11 mph, with gusts as high as 22 mph.
Tuesday Night
Clear, with a low around 44. West wind 5 to 7 mph.
Wednesday
Sunny, with a high near 62. Light southwest wind increasing to 6 to 11 mph in the morning.
Wednesday Night
Mostly clear, with a low around 55. Southwest wind around 9 mph.
Thursday
Sunny, with a high near 67. Southwest wind 7 to 10 mph.
Thursday Night
Mostly clear, with a low around 54. West wind around 6 mph.
Friday
Sunny, with a high near 65. West wind around 8 mph.
Friday Night
Mostly clear, with a low around 52. West wind around 7 mph.
Saturday
Sunny, with a high near 61. Northwest wind 8 to 10 mph.
Saturday Night
Mostly clear, with a low around 50. North wind around 6 mph.
Sunday
Mostly sunny, with a high near 61. Northeast wind around 8 mph becoming south in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
South Dennis MA
 41.71°N 70.16°W (Elev. 49 ft)
Last Update:
3:28 pm EDT Oct 4, 2026
Forecast Valid:
6pm EDT Oct 4, 2026-6pm EDT Oct 11, 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