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

40°F

4°C

Humidity 55%
Wind Speed N 7 mph
Barometer 30.02 in (1016.5 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 7 Dec 1:56 pm EST
Extended Forecast for

Hyannis MA

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 41. Northwest wind around 5 mph becoming light and variable.

    High: 41 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 23. Southwest wind 5 to 13 mph becoming northwest after midnight. Winds could gust as high as 24 mph.

    Low: 23 °F

    Decreasing
    Clouds

  • Monday

    Monday: Mostly sunny, with a high near 30. North wind 14 to 17 mph, with gusts as high as 29 mph.

    High: 30 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 15. North wind 6 to 10 mph.

    Low: 15 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 42. Northwest wind 5 to 9 mph becoming southwest in the afternoon.

    High: 42 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of rain, mainly between 9pm and 4am.  Cloudy, with a low around 32. South wind around 11 mph, with gusts as high as 22 mph.  Chance of precipitation is 40%.

    Low: 32 °F

    Chance Rain

  • Wednesday

    Wednesday: A chance of rain after 1pm.  Mostly cloudy, with a high near 50. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.  Chance of precipitation is 40%.

    High: 50 °F

    Mostly Cloudy
    then Chance
    Rain

  • Wednesday Night

    Wednesday Night: A chance of rain before 4am.  Mostly cloudy, with a low around 36. Southwest wind 10 to 13 mph, with gusts as high as 25 mph.  Chance of precipitation is 40%.

    Low: 36 °F

    Chance Rain

  • Thursday

    Thursday: Mostly sunny, with a high near 43. West wind 11 to 13 mph.

    High: 43 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 41. Northwest wind around 5 mph becoming light and variable.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 23. Southwest wind 5 to 13 mph becoming northwest after midnight. Winds could gust as high as 24 mph.
Monday
Mostly sunny, with a high near 30. North wind 14 to 17 mph, with gusts as high as 29 mph.
Monday Night
Mostly cloudy, with a low around 15. North wind 6 to 10 mph.
Tuesday
Mostly sunny, with a high near 42. Northwest wind 5 to 9 mph becoming southwest in the afternoon.
Tuesday Night
A chance of rain, mainly between 9pm and 4am. Cloudy, with a low around 32. South wind around 11 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.
Wednesday
A chance of rain after 1pm. Mostly cloudy, with a high near 50. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
Wednesday Night
A chance of rain before 4am. Mostly cloudy, with a low around 36. Southwest wind 10 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
Thursday
Mostly sunny, with a high near 43. West wind 11 to 13 mph.
Thursday Night
Mostly cloudy, with a low around 27. West wind 7 to 10 mph, with gusts as high as 20 mph.
Friday
A chance of rain and snow. Partly sunny, with a high near 38. West wind 7 to 10 mph. Chance of precipitation is 40%.
Friday Night
A chance of rain and snow. Mostly cloudy, with a low around 26. Northwest wind around 10 mph. Chance of precipitation is 40%.
Saturday
A chance of rain and snow. Partly sunny, with a high near 37. Northwest wind 10 to 14 mph. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
Hyannis MA
 41.66°N 70.29°W (Elev. 39 ft)
1:37 pm EST Dec 7, 2025
2pm EST Dec 7, 2025-6pm EST Dec 13, 2025
 
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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