Tracking Atmospheric River in the Northwest U.S. and Clipper with Winter Weather in the Northeast U.S.

A prolonged atmospheric river will continue to bring gusty winds, heavy rainfall which may lead to urban and river flooding with possible landslides, and heavy inter-mountain snow over the Pacific Northwest into the northern Rockies through Thursday. A clipper will cross the Great Lakes and Northeast U.S. into Thursday with areas of moderate to heavy snow and mixed wintry precipitation. Read More >

Current conditions at

LYONS VALLEY (COWC1)

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

NA

67°F

19°C

Humidity 13%
Wind Speed NNW 13 MPH
Barometer NA
Dewpoint 15°F (-9°C)
Visibility NA
Last update 10 Dec 10:01 PM PST
Extended Forecast for

11 Miles NNW Lakeport CA

  • Tonight

    Tonight: Clear, with a low around 33. North northwest wind around 7 mph.

    Low: 33 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 74. Light and variable wind.

    High: 74 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 37. Northeast wind 3 to 5 mph.

    Low: 37 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 73. Calm wind.

    High: 73 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 41. East northeast wind 3 to 5 mph.

    Low: 41 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 70. Light and variable wind.

    High: 70 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 67.

    High: 67 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

Detailed Forecast

Tonight
Clear, with a low around 33. North northwest wind around 7 mph.
Thursday
Sunny, with a high near 74. Light and variable wind.
Thursday Night
Clear, with a low around 37. Northeast wind 3 to 5 mph.
Friday
Sunny, with a high near 73. Calm wind.
Friday Night
Clear, with a low around 41. East northeast wind 3 to 5 mph.
Saturday
Sunny, with a high near 70. Light and variable wind.
Saturday Night
Mostly clear, with a low around 39.
Sunday
Mostly sunny, with a high near 67.
Sunday Night
Partly cloudy, with a low around 41.
Monday
A chance of rain after 10am. Partly sunny, with a high near 66.
Monday Night
Rain likely. Mostly cloudy, with a low around 44.
Tuesday
Rain likely. Mostly cloudy, with a high near 61.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 43.
Wednesday
A chance of rain. Partly sunny, with a high near 60.
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles NNW Lakeport CA
 39.2°N 122.96°W (Elev. 1555 ft)
10:43 pm PST Dec 10, 2025
11pm PST Dec 10, 2025-6pm PST Dec 17, 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