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

Prolonged Atmospheric River in the Northwest; Snow in the North-Central US

A prolonged atmospheric river will bring heavy rainfall which may lead to widespread urban and river flooding, heavy mountain snow, along with gusty winds to the Pacific Northwest into the northern Rockies through much of the week. A clipper will bring a period of snow across the upper Midwest and the Great Lakes into Tuesday, before a stronger system bring more wintry impacts. Read More >

Current conditions at

Hyannis, Barnstable Municipal-Boardman Airport (KHYA)

Lat: 41.67°NLon: 70.27°WElev: 49ft.

A Few Clouds

24°F

-4°C

Humidity 52%
Wind Speed N 8 mph
Barometer 30.20 in (1022.9 mb)
Dewpoint 9°F (-13°C)
Visibility 10.00 mi
Wind Chill15°F (-9°C)
Last update 8 Dec 11:56 pm EST
Extended Forecast for

Barnstable MA

  • Overnight

    Overnight: Partly cloudy, with a low around 13. North wind 6 to 8 mph.

    Low: 13 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 35. Light and variable wind becoming southwest 5 to 8 mph in the morning.

    High: 35 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A chance of snow between 9pm and 11pm, then a chance of rain after 11pm. Cloudy, with a temperature rising to around 38 by midnight. South wind 8 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

    Low: 25 °F⇑

    Chance
    Rain/Snow
    then Chance
    Rain

  • Wednesday

    Wednesday: A slight chance of rain before 7am, then a chance of rain after 11am. Mostly cloudy, with a high near 50. South wind 8 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    High: 50 °F

    Slight Chance
    Rain then
    Chance Rain

  • Wednesday Night

    Wednesday Night: A chance of rain, mainly before 3am. Mostly cloudy, with a low around 35. Southwest wind 10 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.

    Low: 35 °F

    Chance Rain

  • Thursday

    Thursday: A slight chance of rain before 11am. Mostly sunny, with a high near 44. West wind 11 to 14 mph. Chance of precipitation is 20%.

    High: 44 °F

    Slight Chance
    Rain then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 25. West wind around 11 mph, with gusts as high as 22 mph.

    Low: 25 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 37. West wind 11 to 14 mph.

    High: 37 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A chance of snow after midnight. Mostly cloudy, with a low around 26. West wind 7 to 9 mph. Chance of precipitation is 30%.

    Low: 26 °F

    Partly Cloudy
    then Chance
    Snow

Detailed Forecast

Overnight
Partly cloudy, with a low around 13. North wind 6 to 8 mph.
Tuesday
Sunny, with a high near 35. Light and variable wind becoming southwest 5 to 8 mph in the morning.
Tuesday Night
A chance of snow between 9pm and 11pm, then a chance of rain after 11pm. Cloudy, with a temperature rising to around 38 by midnight. South wind 8 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Wednesday
A slight chance of rain before 7am, then a chance of rain after 11am. Mostly cloudy, with a high near 50. South wind 8 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
A chance of rain, mainly before 3am. Mostly cloudy, with a low around 35. Southwest wind 10 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.
Thursday
A slight chance of rain before 11am. Mostly sunny, with a high near 44. West wind 11 to 14 mph. Chance of precipitation is 20%.
Thursday Night
Partly cloudy, with a low around 25. West wind around 11 mph, with gusts as high as 22 mph.
Friday
Mostly sunny, with a high near 37. West wind 11 to 14 mph.
Friday Night
A chance of snow after midnight. Mostly cloudy, with a low around 26. West wind 7 to 9 mph. Chance of precipitation is 30%.
Saturday
A chance of snow before 11am, then a chance of rain. Partly sunny, with a high near 39. West wind 9 to 13 mph. Chance of precipitation is 40%.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 22. West wind 11 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 34. West wind around 14 mph.
Sunday Night
Partly cloudy, with a low around 20. Northwest wind 10 to 13 mph, with gusts as high as 23 mph.
Monday
Mostly sunny, with a high near 33. Northwest wind around 11 mph, with gusts as high as 21 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Barnstable MA
 41.71°N 70.31°W (Elev. 16 ft)
Last Update:
9:58 pm EST Dec 8, 2025
Forecast Valid:
12am EST Dec 9, 2025-6pm EST Dec 15, 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