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

66°F

19°C

Humidity 61%
Wind Speed SW 16 G 26 mph
Barometer 30.25 in (1024.3 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 3 Oct 2:56 pm EDT
Extended Forecast for

South Yarmouth MA

  • Tonight

    Tonight: Mostly clear, with a low around 55. Southwest wind 10 to 14 mph.

    Low: 55 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 74. Southwest wind around 7 mph.

    High: 74 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 58. Southwest wind 3 to 5 mph.

    Low: 58 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 73. South wind 3 to 8 mph.

    High: 73 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 59. South wind around 6 mph.

    Low: 59 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 75. Southwest wind 7 to 13 mph.

    High: 75 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 60. Southwest wind around 10 mph.

    Low: 60 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 73. Southwest wind 10 to 16 mph, with gusts as high as 26 mph.

    High: 73 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers after 1am. Mostly cloudy, with a low around 59. Southwest wind around 14 mph. Chance of precipitation is 40%.

    Low: 59 °F

    Mostly Cloudy
    then Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 55. Southwest wind 10 to 14 mph.
Saturday
Sunny, with a high near 74. Southwest wind around 7 mph.
Saturday Night
Mostly clear, with a low around 58. Southwest wind 3 to 5 mph.
Sunday
Sunny, with a high near 73. South wind 3 to 8 mph.
Sunday Night
Mostly clear, with a low around 59. South wind around 6 mph.
Monday
Sunny, with a high near 75. Southwest wind 7 to 13 mph.
Monday Night
Mostly clear, with a low around 60. Southwest wind around 10 mph.
Tuesday
Sunny, with a high near 73. Southwest wind 10 to 16 mph, with gusts as high as 26 mph.
Tuesday Night
A chance of showers after 1am. Mostly cloudy, with a low around 59. Southwest wind around 14 mph. Chance of precipitation is 40%.
Wednesday
Showers. High near 70. West wind around 14 mph. Chance of precipitation is 80%.
Wednesday Night
Showers likely. Mostly cloudy, with a low around 50. North wind 11 to 15 mph. Chance of precipitation is 60%.
Thursday
Mostly sunny, with a high near 60. North wind around 15 mph.
Thursday Night
Partly cloudy, with a low around 49. Northeast wind 7 to 9 mph.
Friday
Mostly sunny, with a high near 64. Northeast wind 7 to 10 mph becoming southeast in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
South Yarmouth MA
 41.65°N 70.2°W (Elev. 10 ft)
Last Update:
2:25 pm EDT Oct 3, 2025
Forecast Valid:
3pm EDT Oct 3, 2025-6pm EDT Oct 10, 2025
 
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