Prolonged Atmospheric River Will Impact the Northwest Early this Week

A weather system in the Pacific Northwest will produce rain throughout the day, before a potent atmospheric river produces a prolonged round of heavy rainfall, widespread urban and river flooding, and high elevation snow to the region Monday through Wednesday. Showers and thunderstorms may produce isolated damaging winds, a brief tornado, and locally heavy rainfall across parts of Florida today. Read More >

Current conditions at

Hyannis, Barnstable Municipal-Boardman Airport (KHYA)

Lat: 41.67°NLon: 70.27°WElev: 49ft.

Fair

33°F

1°C

Humidity 64%
Wind Speed W 9 mph
Barometer 29.98 in (1015.3 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill25°F (-4°C)
Last update 8 Dec 3:56 am EST
Extended Forecast for

Hyannis MA

  • Today

    Today: Mostly sunny, with a high near 30. North wind 14 to 18 mph, with gusts as high as 32 mph.

    High: 30 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 20. North wind 6 to 10 mph, with gusts as high as 20 mph.

    Low: 20 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: Mostly sunny, with a high near 38. Northwest wind around 7 mph becoming southwest in the afternoon.

    High: 38 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of rain, mainly after 10pm.  Cloudy, with a low around 33. South wind 8 to 11 mph, with gusts as high as 23 mph.  Chance of precipitation is 30%.

    Low: 33 °F

    Chance Rain

  • Wednesday

    Wednesday: A chance of rain, mainly after noon.  Mostly cloudy, with a high near 49. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.  Chance of precipitation is 50%.

    High: 49 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: A chance of rain, mainly before 4am.  Mostly cloudy, with a low around 34. Southwest wind 10 to 14 mph, with gusts as high as 25 mph.  Chance of precipitation is 50%.

    Low: 34 °F

    Chance Rain

  • Thursday

    Thursday: Mostly sunny, with a high near 42. West wind 11 to 14 mph.

    High: 42 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 26. West wind around 10 mph, with gusts as high as 21 mph.

    Low: 26 °F

    Partly Cloudy

  • Friday

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

    High: 37 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 30. North wind 14 to 18 mph, with gusts as high as 32 mph.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 20. North wind 6 to 10 mph, with gusts as high as 20 mph.
Tuesday
Mostly sunny, with a high near 38. Northwest wind around 7 mph becoming southwest in the afternoon.
Tuesday Night
A chance of rain, mainly after 10pm. Cloudy, with a low around 33. South wind 8 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.
Wednesday
A chance of rain, mainly after noon. Mostly cloudy, with a high near 49. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.
Wednesday Night
A chance of rain, mainly before 4am. Mostly cloudy, with a low around 34. Southwest wind 10 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.
Thursday
Mostly sunny, with a high near 42. West wind 11 to 14 mph.
Thursday Night
Partly cloudy, with a low around 26. West wind around 10 mph, with gusts as high as 21 mph.
Friday
Mostly sunny, with a high near 37. West wind around 11 mph.
Friday Night
A chance of snow after 9pm. Mostly cloudy, with a low around 26. West wind around 9 mph. Chance of precipitation is 40%.
Saturday
A chance of rain and snow. Mostly cloudy, with a high near 38. West wind 9 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 50%.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 21. West wind around 14 mph, with gusts as high as 28 mph. Chance of precipitation is 40%.
Sunday
Mostly sunny, with a high near 32. Northwest wind around 14 mph, with gusts as high as 25 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Hyannis MA
 41.66°N 70.29°W (Elev. 39 ft)
1:04 am EST Dec 8, 2025
4am EST Dec 8, 2025-6pm EST Dec 14, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database