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

Hazardous Weather Conditions

Current conditions at

LYONS VALLEY (COWC1)

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

NA

27°F

-3°C

Humidity 97%
Wind Speed WNW 14 MPH
Barometer NA
Dewpoint 26°F (-3°C)
Visibility NA
Wind Chill16°F (-9°C)
Last update 20 Feb 03:01 AM PST
Extended Forecast for

5 Miles SW Lakeport CA

Cold Weather Advisory until February 20, 09:00am
Click here for hazard details and duration
Cold Weather Advisory
  •  
    Cold Weather Advisory until February 20, 09:00am

    NOW until 9:00am Fri

    Cold Weather Advisory

  • Overnight

    Low: 28 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 42. Northeast wind around 7 mph becoming south southeast in the afternoon.

    High: 42 °F

    Partly Sunny

  • Friday Night

    Friday Night: A 30 percent chance of snow, mainly after 4am. Mostly cloudy, with a low around 34. East southeast wind 8 to 11 mph, with gusts as high as 20 mph.

    Low: 34 °F

    Mostly Cloudy
    then Chance
    Snow

  • Saturday

    Saturday: A chance of rain and snow before 10am, then rain likely. Mostly cloudy, with a high near 44. Breezy, with a south southeast wind 15 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 44 °F

    Breezy.
    Chance
    Rain/Snow
    then Rain
    Likely

  • Saturday Night

    Saturday Night: Rain. Low around 41. Windy, with a southeast wind 26 to 29 mph, with gusts as high as 50 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 41 °F

    Rain and
    Windy

  • Sunday

    Sunday: Rain. High near 50. Windy, with a south wind 20 to 24 mph, with gusts as high as 41 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 50 °F

    Rain and
    Windy

  • Sunday Night

    Sunday Night: Rain. Low around 49. Breezy. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 49 °F

    Rain and
    Breezy

  • Monday

    Monday: Rain likely. Cloudy, with a high near 52. Breezy.

    High: 52 °F

    Rain Likely
    and Breezy

Detailed Forecast

Overnight
Partly cloudy, with a low around 28. West northwest wind around 9 mph.
Friday
Partly sunny, with a high near 42. Northeast wind around 7 mph becoming south southeast in the afternoon.
Friday Night
A 30 percent chance of snow, mainly after 4am. Mostly cloudy, with a low around 34. East southeast wind 8 to 11 mph, with gusts as high as 20 mph.
Saturday
A chance of rain and snow before 10am, then rain likely. Mostly cloudy, with a high near 44. Breezy, with a south southeast wind 15 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Saturday Night
Rain. Low around 41. Windy, with a southeast wind 26 to 29 mph, with gusts as high as 50 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
Rain. High near 50. Windy, with a south wind 20 to 24 mph, with gusts as high as 41 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Sunday Night
Rain. Low around 49. Breezy. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
Rain likely. Cloudy, with a high near 52. Breezy.
Monday Night
Rain. Cloudy, with a low around 49.
Tuesday
Rain. Cloudy, with a high near 51.
Tuesday Night
Rain likely. Cloudy, with a low around 46.
Wednesday
A chance of rain. Mostly cloudy, with a high near 54.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 47.
Thursday
A chance of rain. Mostly cloudy, with a high near 55.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SW Lakeport CA
 38.99°N 122.99°W (Elev. 2595 ft)
Last Update:
1:10 am PST Feb 20, 2026
Forecast Valid:
3am PST Feb 20, 2026-6pm PST Feb 26, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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