Prolonged Atmospheric River in the Pacific Northwest; Snow and High Winds from the Upper Midwest into the Northeast

A prolonged atmospheric river will continue to impact the Pacific Northwest into the Northern Rockies with heavy rainfall, areas of urban and river flooding, landslides, heavy mountain snow, and gusty winds into Thursday. A strong clipper system will bring the threat of heavy snow and high winds across the Upper Midwest/Great Lakes as well as portions of the interior Northeast and Appalachians. Read More >

Current conditions at

LYONS VALLEY (COWC1)

Lat: 39.12583°NLon: 123.07333°WElev: 3355.0ft.

NA

61°F

16°C

Humidity 44%
Wind Speed NW 13 MPH
Barometer NA
Dewpoint 39°F (4°C)
Visibility NA
Last update 09 Dec 04:01 PM PST
Extended Forecast for

5 Miles W Lakeport CA

  • Tonight

    Tonight: Clear, with a low around 56. North wind around 9 mph.

    Low: 56 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 67. North northwest wind 6 to 8 mph.

    High: 67 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 56. North wind around 8 mph.

    Low: 56 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 67. North northwest wind 7 to 9 mph.

    High: 67 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 54. North northeast wind around 7 mph.

    Low: 54 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 65. Northeast wind 5 to 7 mph becoming southwest in the afternoon.

    High: 65 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 48.

    Low: 48 °F

    Partly Cloudy

Detailed Forecast

Tonight
Clear, with a low around 56. North wind around 9 mph.
Wednesday
Sunny, with a high near 67. North northwest wind 6 to 8 mph.
Wednesday Night
Clear, with a low around 56. North wind around 8 mph.
Thursday
Sunny, with a high near 67. North northwest wind 7 to 9 mph.
Thursday Night
Clear, with a low around 54. North northeast wind around 7 mph.
Friday
Sunny, with a high near 65. Northeast wind 5 to 7 mph becoming southwest in the afternoon.
Friday Night
Mostly clear, with a low around 50.
Saturday
Sunny, with a high near 62.
Saturday Night
Partly cloudy, with a low around 48.
Sunday
Mostly sunny, with a high near 57.
Sunday Night
A slight chance of rain. Mostly cloudy, with a low around 49.
Monday
A chance of rain. Partly sunny, with a high near 55.
Monday Night
A chance of rain. Mostly cloudy, with a low around 52.
Tuesday
A chance of rain. Partly sunny, with a high near 56.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles W Lakeport CA
 39.03°N 123.03°W (Elev. 2398 ft)
1:10 pm PST Dec 9, 2025
4pm PST Dec 9, 2025-6pm PST Dec 16, 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