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

70°F

21°C

Humidity 57%
Wind Speed S 5 mph
Barometer 30.17 in (1021.6 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 29 Sep 4:56 pm EDT
Extended Forecast for

South Yarmouth MA

  • Tonight

    Tonight: Mostly cloudy, with a low around 59. Light and variable wind.

    Low: 59 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 74. Light northwest wind becoming northeast 9 to 14 mph in the morning.

    High: 74 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 53. Northeast wind 11 to 16 mph, with gusts as high as 26 mph.

    Low: 53 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 64. Breezy, with a north wind 18 to 20 mph, with gusts as high as 32 mph.

    High: 64 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 47. Northeast wind 16 to 18 mph, with gusts as high as 28 mph.

    Low: 47 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 63. Northeast wind 14 to 17 mph.

    High: 63 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 42. Northeast wind 3 to 8 mph.

    Low: 42 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 67. Northwest wind 5 to 8 mph becoming southwest in the afternoon.

    High: 67 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 53. West wind around 6 mph.

    Low: 53 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 59. Light and variable wind.
Tuesday
Partly sunny, with a high near 74. Light northwest wind becoming northeast 9 to 14 mph in the morning.
Tuesday Night
Partly cloudy, with a low around 53. Northeast wind 11 to 16 mph, with gusts as high as 26 mph.
Wednesday
Mostly sunny, with a high near 64. Breezy, with a north wind 18 to 20 mph, with gusts as high as 32 mph.
Wednesday Night
Partly cloudy, with a low around 47. Northeast wind 16 to 18 mph, with gusts as high as 28 mph.
Thursday
Mostly sunny, with a high near 63. Northeast wind 14 to 17 mph.
Thursday Night
Mostly clear, with a low around 42. Northeast wind 3 to 8 mph.
Friday
Sunny, with a high near 67. Northwest wind 5 to 8 mph becoming southwest in the afternoon.
Friday Night
Mostly clear, with a low around 53. West wind around 6 mph.
Saturday
Sunny, with a high near 72. West wind 6 to 9 mph.
Saturday Night
Mostly clear, with a low around 56. Southwest wind around 6 mph.
Sunday
Sunny, with a high near 74. Southwest wind 6 to 10 mph.
Sunday Night
Mostly clear, with a low around 57. West wind around 7 mph.
Monday
Sunny, with a high near 73. West 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:
12:32 pm EDT Sep 29, 2025
Forecast Valid:
5pm EDT Sep 29, 2025-6pm EDT Oct 6, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation