National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Hyannis, Barnstable Municipal-Boardman Airport (KHYA)

Lat: 41.67°NLon: 70.27°WElev: 49ft.

Light Rain Fog/Mist

40°F

4°C

Humidity 93%
Wind Speed N 18 G 33 mph
Barometer 29.55 in (1000.8 mb)
Dewpoint 38°F (3°C)
Visibility 5.00 mi
Wind Chill31°F (-1°C)
Last update 3 Dec 2:56 am EST
Extended Forecast for

South Yarmouth MA

  • Overnight

    Overnight: Rain likely, mainly before 4am. Cloudy, with a low around 35. North wind around 14 mph, with gusts as high as 29 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 35 °F

    Rain Likely

  • Wednesday

    Wednesday: Cloudy through mid morning, then gradual clearing, with a high near 42. Northwest wind 5 to 13 mph, with gusts as high as 24 mph.

    High: 42 °F

    Gradual
    Clearing

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 32. Calm wind becoming west around 6 mph after midnight.

    Low: 32 °F

    Partly Cloudy

  • Thursday

    Thursday: A slight chance of rain after 1pm, mixing with snow after 5pm. Increasing clouds, with a high near 43. West wind 9 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.

    High: 43 °F

    Partly Sunny
    then Slight
    Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: A slight chance of snow before 9pm. Partly cloudy, with a low around 16. Northwest wind 10 to 16 mph, with gusts as high as 33 mph. Chance of precipitation is 20%.

    Low: 16 °F

    Slight Chance
    Snow then
    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 38. Northwest wind around 8 mph becoming southwest in the afternoon.

    High: 38 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A chance of snow between midnight and 2am, then a chance of rain after 2am. Mostly cloudy, with a low around 26. Southwest wind 3 to 6 mph. Chance of precipitation is 30%.

    Low: 26 °F

    Mostly Cloudy
    then Chance
    Rain/Snow

  • Saturday

    Saturday: A chance of rain. Mostly cloudy, with a high near 43. Southeast wind 5 to 7 mph becoming west in the afternoon. Chance of precipitation is 40%.

    High: 43 °F

    Chance Rain

  • Saturday Night

    Saturday Night: A chance of rain before 9pm. Mostly cloudy, with a low around 30. West wind 3 to 6 mph. Chance of precipitation is 30%.

    Low: 30 °F

    Chance Rain
    then Mostly
    Cloudy

Detailed Forecast

Overnight
Rain likely, mainly before 4am. Cloudy, with a low around 35. North wind around 14 mph, with gusts as high as 29 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Cloudy through mid morning, then gradual clearing, with a high near 42. Northwest wind 5 to 13 mph, with gusts as high as 24 mph.
Wednesday Night
Partly cloudy, with a low around 32. Calm wind becoming west around 6 mph after midnight.
Thursday
A slight chance of rain after 1pm, mixing with snow after 5pm. Increasing clouds, with a high near 43. West wind 9 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Thursday Night
A slight chance of snow before 9pm. Partly cloudy, with a low around 16. Northwest wind 10 to 16 mph, with gusts as high as 33 mph. Chance of precipitation is 20%.
Friday
Mostly sunny, with a high near 38. Northwest wind around 8 mph becoming southwest in the afternoon.
Friday Night
A chance of snow between midnight and 2am, then a chance of rain after 2am. Mostly cloudy, with a low around 26. Southwest wind 3 to 6 mph. Chance of precipitation is 30%.
Saturday
A chance of rain. Mostly cloudy, with a high near 43. Southeast wind 5 to 7 mph becoming west in the afternoon. Chance of precipitation is 40%.
Saturday Night
A chance of rain before 9pm. Mostly cloudy, with a low around 30. West wind 3 to 6 mph. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 40. Northwest wind 6 to 9 mph.
Sunday Night
Mostly cloudy, with a low around 26. Northwest wind around 7 mph.
Monday
Partly sunny, with a high near 36. North wind 8 to 11 mph.
Monday Night
Partly cloudy, with a low around 22. North wind around 8 mph.
Tuesday
Mostly sunny, with a high near 39. Northwest wind 7 to 10 mph becoming southwest in the afternoon.
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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:
1:14 am EST Dec 3, 2025
Forecast Valid:
3am EST Dec 3, 2025-6pm EST Dec 9, 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