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

68°F

20°C

Humidity 70%
Wind Speed NW 7 G 17 mph
Barometer 29.82 in (1009.9 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 14 Oct 7:56 pm EDT
Extended Forecast for

South Yarmouth MA

  • Tonight

    Tonight: Partly cloudy, with a low around 49. Northwest wind 7 to 11 mph, with gusts as high as 28 mph.

    Low: 49 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 56. North wind 10 to 14 mph, with gusts as high as 28 mph.

    High: 56 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 47. Northeast wind around 5 mph becoming calm.

    Low: 47 °F

    Partly Cloudy

  • Friday

    Friday: Showers, mainly before 5pm. Patchy fog after 2pm. High near 69. Southeast wind 10 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 69 °F

    Showers and
    Patchy Fog

  • Friday Night

    Friday Night: Showers. Low around 47. Southwest wind 13 to 15 mph becoming northwest after midnight. Winds could gust as high as 31 mph. Chance of precipitation is 80%.

    Low: 47 °F

    Showers

  • Saturday

    Saturday: A chance of showers, mainly before 11am. Partly sunny, with a high near 55. Northwest wind around 18 mph, with gusts as high as 32 mph. Chance of precipitation is 30%.

    High: 55 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 39. Northwest wind 10 to 14 mph, with gusts as high as 26 mph.

    Low: 39 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 54. Northwest wind 9 to 11 mph, with gusts as high as 21 mph.

    High: 54 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 45. Light southwest wind.

    Low: 45 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 49. Northwest wind 7 to 11 mph, with gusts as high as 28 mph.
Thursday
Sunny, with a high near 56. North wind 10 to 14 mph, with gusts as high as 28 mph.
Thursday Night
Partly cloudy, with a low around 47. Northeast wind around 5 mph becoming calm.
Friday
Showers, mainly before 5pm. Patchy fog after 2pm. High near 69. Southeast wind 10 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
Showers. Low around 47. Southwest wind 13 to 15 mph becoming northwest after midnight. Winds could gust as high as 31 mph. Chance of precipitation is 80%.
Saturday
A chance of showers, mainly before 11am. Partly sunny, with a high near 55. Northwest wind around 18 mph, with gusts as high as 32 mph. Chance of precipitation is 30%.
Saturday Night
Mostly clear, with a low around 39. Northwest wind 10 to 14 mph, with gusts as high as 26 mph.
Sunday
Sunny, with a high near 54. Northwest wind 9 to 11 mph, with gusts as high as 21 mph.
Sunday Night
Mostly clear, with a low around 45. Light southwest wind.
Monday
Sunny, with a high near 59. South wind 7 to 13 mph.
Monday Night
Partly cloudy, with a low around 48. Southwest wind 6 to 8 mph.
Tuesday
Mostly sunny, with a high near 62. West wind 6 to 9 mph.
Tuesday Night
Partly cloudy, with a low around 48. West wind around 5 mph becoming light and variable in the evening.
Wednesday
Sunny, with a high near 60. Northeast wind 6 to 9 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
South Yarmouth MA
 41.67°N 70.2°W (Elev. 10 ft)
Last Update:
6:55 pm EDT Oct 14, 2026
Forecast Valid:
8pm EDT Oct 14, 2026-6pm EDT Oct 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