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.

A Few Clouds

36°F

2°C

Humidity 44%
Wind Speed W 13 G 24 mph
Barometer 30.01 in (1016.3 mb)
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 12 Jan 11:56 am EST
Extended Forecast for

South Yarmouth MA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 37. West wind 10 to 13 mph, with gusts as high as 25 mph.

    High: 37 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 29. West wind around 6 mph.

    Low: 29 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 42. West wind 6 to 8 mph.

    High: 42 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 33. South wind 6 to 9 mph, with gusts as high as 22 mph.

    Low: 33 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 45. Southwest wind 7 to 11 mph, with gusts as high as 22 mph.

    High: 45 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A chance of rain, mainly after 8pm. Cloudy, with a low around 34. Light southwest wind. Chance of precipitation is 40%.

    Low: 34 °F

    Chance Rain

  • Thursday

    Thursday: A chance of rain. Mostly cloudy, with a high near 43. Southwest wind 3 to 8 mph. Chance of precipitation is 40%.

    High: 43 °F

    Chance Rain

  • Thursday Night

    Thursday Night: A chance of rain before 11pm, then snow likely. Mostly cloudy, with a low around 24. North wind 6 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.

    Low: 24 °F

    Chance
    Rain/Snow
    then Snow
    Likely

  • Friday

    Friday: Rain and snow likely before noon, then a chance of snow between noon and 3pm. Partly sunny, with a high near 35. North wind 9 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.

    High: 35 °F

    Rain/Snow
    Likely then
    Chance Snow

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 37. West wind 10 to 13 mph, with gusts as high as 25 mph.
Tonight
Partly cloudy, with a low around 29. West wind around 6 mph.
Tuesday
Sunny, with a high near 42. West wind 6 to 8 mph.
Tuesday Night
Mostly cloudy, with a low around 33. South wind 6 to 9 mph, with gusts as high as 22 mph.
Wednesday
Mostly cloudy, with a high near 45. Southwest wind 7 to 11 mph, with gusts as high as 22 mph.
Wednesday Night
A chance of rain, mainly after 8pm. Cloudy, with a low around 34. Light southwest wind. Chance of precipitation is 40%.
Thursday
A chance of rain. Mostly cloudy, with a high near 43. Southwest wind 3 to 8 mph. Chance of precipitation is 40%.
Thursday Night
A chance of rain before 11pm, then snow likely. Mostly cloudy, with a low around 24. North wind 6 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.
Friday
Rain and snow likely before noon, then a chance of snow between noon and 3pm. Partly sunny, with a high near 35. North wind 9 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.
Friday Night
Mostly cloudy, with a low around 24. West wind around 6 mph.
Saturday
Mostly sunny, with a high near 39. Southwest wind 6 to 9 mph.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 30. South wind around 6 mph. Chance of precipitation is 30%.
Sunday
A chance of rain. Partly sunny, with a high near 39. South wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
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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:
5:32 am EST Jan 12, 2026
Forecast Valid:
12pm EST Jan 12, 2026-6pm EST Jan 18, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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