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

Winter Storm Bringing Widespread Hazardous Weather to the Eastern U.S.

A rapidly-intensifying winter storm continues to bring heavy snow, high winds, and blizzard conditions over the Upper Midwest and Great Lakes through today. An Arctic front will lead in a period of gusty to high winds and sharply colder temperatures over the entire eastern U.S. Heavy lake effect snow is then expected from Lakes Erie and Ontario through New Year's Day. Read More >

Current conditions at

LYONS VALLEY (COWC1)

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

NA

57°F

14°C

Humidity 37%
Wind Speed ESE 2 MPH
Barometer NA
Dewpoint 31°F (-1°C)
Visibility NA
Last update 29 Dec 11:01 AM PST
Extended Forecast for

10 Miles NNW Lakeport CA

  • Today

    Today: Sunny, with a high near 58. Light south southeast wind.

    High: 58 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 37. Light north northeast wind.

    Low: 37 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 58. Southeast wind 3 to 5 mph.

    High: 58 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 10 percent chance of rain after 4am. Mostly cloudy, with a low around 38. Northeast wind around 5 mph.

    Low: 38 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Wednesday

    Wednesday: A 50 percent chance of rain, mainly after 10am. Mostly cloudy, with a high near 58. East wind 3 to 6 mph. New precipitation amounts of less than a tenth of an inch possible.

    High: 58 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: Rain. Low around 43. East wind around 6 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 43 °F

    Rain

  • New Year's Day

    New Year's Day: Rain. High near 55. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 55 °F

    Rain

  • Thursday Night

    Thursday Night: Rain. Cloudy, with a low around 45.

    Low: 45 °F

    Rain

  • Friday

    Friday: Rain. Cloudy, with a high near 55.

    High: 55 °F

    Rain

Detailed Forecast

Today
Sunny, with a high near 58. Light south southeast wind.
Tonight
Clear, with a low around 37. Light north northeast wind.
Tuesday
Sunny, with a high near 58. Southeast wind 3 to 5 mph.
Tuesday Night
A 10 percent chance of rain after 4am. Mostly cloudy, with a low around 38. Northeast wind around 5 mph.
Wednesday
A 50 percent chance of rain, mainly after 10am. Mostly cloudy, with a high near 58. East wind 3 to 6 mph. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Rain. Low around 43. East wind around 6 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
New Year's Day
Rain. High near 55. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
Rain. Cloudy, with a low around 45.
Friday
Rain. Cloudy, with a high near 55.
Friday Night
Rain. Cloudy, with a low around 39.
Saturday
Rain. Mostly cloudy, with a high near 52.
Saturday Night
Rain likely. Mostly cloudy, with a low around 38.
Sunday
Rain likely. Mostly cloudy, with a high near 53.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
10 Miles NNW Lakeport CA
 39.17°N 122.98°W (Elev. 1998 ft)
Last Update:
11:29 am PST Dec 29, 2025
Forecast Valid:
11am PST Dec 29, 2025-6pm PST Jan 4, 2026
 
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