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

27°F

-3°C

Humidity 41%
Wind Speed Vrbl 5 mph
Barometer 30.17 in (1021.7 mb)
Dewpoint 6°F (-14°C)
Visibility 10.00 mi
Wind Chill21°F (-6°C)
Last update 9 Dec 11:56 am EST
Extended Forecast for

South Yarmouth MA

  • This Afternoon

    This Afternoon: Increasing clouds, with a high near 33. Calm wind.

    High: 33 °F

    Increasing
    Clouds

  • Tonight

    Tonight: A chance of snow showers before midnight, then a chance of rain showers between midnight and 4am. Cloudy, with a temperature rising to around 37 by 1am. Southwest wind 7 to 13 mph, with gusts as high as 32 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.

    Low: 30 °F⇑

    Chance Snow
    Showers then
    Chance
    Showers

  • Wednesday

    Wednesday: Rain, mainly after 5pm. High near 50. South wind 11 to 17 mph, with gusts as high as 34 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 50 °F

    Mostly Cloudy
    then Rain

  • Wednesday Night

    Wednesday Night: Rain likely before 10pm, then a chance of showers between 10pm and 3am. Mostly cloudy, with a low around 34. Southwest wind 11 to 16 mph, with gusts as high as 33 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 34 °F

    Rain Likely
    then Chance
    Showers

  • Thursday

    Thursday: Mostly sunny, with a high near 39. West wind 14 to 18 mph, with gusts as high as 34 mph.

    High: 39 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 25. West wind 10 to 18 mph.

    Low: 25 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 37. West wind around 14 mph, with gusts as high as 29 mph.

    High: 37 °F

    Sunny

  • Friday Night

    Friday Night: A chance of snow showers after 5am. Partly cloudy, with a low around 27. West wind 6 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.

    Low: 27 °F

    Partly Cloudy
    then Chance
    Snow Showers

  • Saturday

    Saturday: A chance of snow showers before 8am, then a chance of rain showers. Mostly cloudy, with a high near 41. West wind 7 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.

    High: 41 °F

    Chance
    Rain/Snow
    then Chance
    Showers

Detailed Forecast

This Afternoon
Increasing clouds, with a high near 33. Calm wind.
Tonight
A chance of snow showers before midnight, then a chance of rain showers between midnight and 4am. Cloudy, with a temperature rising to around 37 by 1am. Southwest wind 7 to 13 mph, with gusts as high as 32 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.
Wednesday
Rain, mainly after 5pm. High near 50. South wind 11 to 17 mph, with gusts as high as 34 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Rain likely before 10pm, then a chance of showers between 10pm and 3am. Mostly cloudy, with a low around 34. Southwest wind 11 to 16 mph, with gusts as high as 33 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Mostly sunny, with a high near 39. West wind 14 to 18 mph, with gusts as high as 34 mph.
Thursday Night
Partly cloudy, with a low around 25. West wind 10 to 18 mph.
Friday
Sunny, with a high near 37. West wind around 14 mph, with gusts as high as 29 mph.
Friday Night
A chance of snow showers after 5am. Partly cloudy, with a low around 27. West wind 6 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Saturday
A chance of snow showers before 8am, then a chance of rain showers. Mostly cloudy, with a high near 41. West wind 7 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.
Saturday Night
A chance of snow before midnight, then a chance of rain and snow. Mostly cloudy, with a low around 25. West wind 8 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 50%.
Sunday
A chance of rain and snow. Mostly cloudy, with a high near 36. Northwest wind 9 to 11 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.
Sunday Night
A chance of snow showers. Partly cloudy, with a low around 17. Northwest wind around 11 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 31. Northwest wind around 11 mph, with gusts as high as 25 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
South Yarmouth MA
 41.67°N 70.2°W (Elev. 10 ft)
Last Update:
5:02 am EST Dec 9, 2025
Forecast Valid:
12pm EST Dec 9, 2025-6pm EST Dec 15, 2025
 
Forecast Discussion
 
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Additional Resources

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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