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

59°F

15°C

Humidity 90%
Wind Speed SE 10 G 18 mph
Barometer 29.99 in (1015.6 mb)
Dewpoint 56°F (13°C)
Visibility 7.00 mi
Last update 13 Oct 1:56 pm EDT
Extended Forecast for

South Yarmouth MA

  • This Afternoon

    This Afternoon: Cloudy, with a high near 62. Southeast wind around 10 mph.

    High: 62 °F

    Cloudy

  • Tonight

    Tonight: A chance of showers, mainly between 8pm and 3am. Cloudy, then gradually becoming partly cloudy, with a low around 59. Southwest wind 11 to 16 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 59 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Mostly sunny, with a high near 72. Southwest wind around 11 mph, with gusts as high as 22 mph.

    High: 72 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 50. Northwest wind 6 to 8 mph.

    Low: 50 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 60. North wind 9 to 13 mph, with gusts as high as 23 mph.

    High: 60 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 46. Calm wind.

    Low: 46 °F

    Partly Cloudy

  • Friday

    Friday: Showers, mainly after 9am. High near 66. South wind 9 to 16 mph, with gusts as high as 29 mph. Chance of precipitation is 90%.

    High: 66 °F

    Showers

  • Friday Night

    Friday Night: Showers likely, mainly before 11pm. Mostly cloudy, with a low around 43. West wind around 17 mph, with gusts as high as 31 mph. Chance of precipitation is 70%.

    Low: 43 °F

    Showers
    Likely

  • Saturday

    Saturday: Mostly sunny, with a high near 55. Breezy, with a northwest wind around 21 mph, with gusts as high as 34 mph.

    High: 55 °F

    Mostly Sunny
    and Breezy

Detailed Forecast

This Afternoon
Cloudy, with a high near 62. Southeast wind around 10 mph.
Tonight
A chance of showers, mainly between 8pm and 3am. Cloudy, then gradually becoming partly cloudy, with a low around 59. Southwest wind 11 to 16 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Mostly sunny, with a high near 72. Southwest wind around 11 mph, with gusts as high as 22 mph.
Wednesday Night
Partly cloudy, with a low around 50. Northwest wind 6 to 8 mph.
Thursday
Sunny, with a high near 60. North wind 9 to 13 mph, with gusts as high as 23 mph.
Thursday Night
Partly cloudy, with a low around 46. Calm wind.
Friday
Showers, mainly after 9am. High near 66. South wind 9 to 16 mph, with gusts as high as 29 mph. Chance of precipitation is 90%.
Friday Night
Showers likely, mainly before 11pm. Mostly cloudy, with a low around 43. West wind around 17 mph, with gusts as high as 31 mph. Chance of precipitation is 70%.
Saturday
Mostly sunny, with a high near 55. Breezy, with a northwest wind around 21 mph, with gusts as high as 34 mph.
Saturday Night
Mostly clear, with a low around 38. Northwest wind 13 to 18 mph, with gusts as high as 30 mph.
Sunday
Sunny, with a high near 55. Northwest wind around 14 mph.
Sunday Night
Mostly clear, with a low around 43. Northwest wind around 6 mph becoming southwest after midnight.
Monday
Sunny, with a high near 61. Southwest wind 8 to 14 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:
9:28 am EDT Oct 13, 2026
Forecast Valid:
2pm EDT Oct 13, 2026-6pm EDT Oct 19, 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