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

LYONS VALLEY (COWC1)

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

NA

31°F

-1°C

Humidity 99%
Wind Speed ESE 14 MPH
Barometer NA
Dewpoint 31°F (-1°C)
Visibility NA
Wind Chill21°F (-6°C)
Last update 21 Feb 03:01 AM PST
Extended Forecast for

5 Miles SW Lakeport CA

  • Overnight

    Overnight: Mostly cloudy, with a low around 34. East southeast wind around 10 mph.

    Low: 34 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 30 percent chance of rain, mainly after 4pm. Mostly cloudy, with a high near 44. Breezy, with a south southeast wind 15 to 17 mph, with gusts as high as 30 mph.

    High: 44 °F

    Breezy.
    Mostly Cloudy
    then Chance
    Rain

  • Saturday Night

    Saturday Night: Rain, mainly after 10pm. Low around 42. Windy, with a south southeast wind around 22 mph, with gusts as high as 39 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 42 °F

    Windy. Chance
    Rain then
    Rain

  • Sunday

    Sunday: Rain. High near 49. Windy, with a south wind 18 to 22 mph, with gusts as high as 39 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 49 °F

    Rain and
    Windy

  • Sunday Night

    Sunday Night: A 50 percent chance of rain, mainly before 4am. Mostly cloudy, with a low around 48. Southeast wind 10 to 13 mph, with gusts as high as 25 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 48 °F

    Chance Rain

  • Monday

    Monday: Rain likely, mainly after 4pm. Mostly cloudy, with a high near 54. East wind 9 to 13 mph becoming south southeast in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 54 °F

    Chance Rain
    then Rain
    Likely

  • Monday Night

    Monday Night: Rain. Low around 49. Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.

    Low: 49 °F

    Rain

  • Tuesday

    Tuesday: Rain. Cloudy, with a high near 52.

    High: 52 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain, mainly before 10pm. Cloudy, with a low around 48.

    Low: 48 °F

    Rain

Detailed Forecast

Overnight
Mostly cloudy, with a low around 34. East southeast wind around 10 mph.
Saturday
A 30 percent chance of rain, mainly after 4pm. Mostly cloudy, with a high near 44. Breezy, with a south southeast wind 15 to 17 mph, with gusts as high as 30 mph.
Saturday Night
Rain, mainly after 10pm. Low around 42. Windy, with a south southeast wind around 22 mph, with gusts as high as 39 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Rain. High near 49. Windy, with a south wind 18 to 22 mph, with gusts as high as 39 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
A 50 percent chance of rain, mainly before 4am. Mostly cloudy, with a low around 48. Southeast wind 10 to 13 mph, with gusts as high as 25 mph. New precipitation amounts of less than a tenth of an inch possible.
Monday
Rain likely, mainly after 4pm. Mostly cloudy, with a high near 54. East wind 9 to 13 mph becoming south southeast in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Rain. Low around 49. Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.
Tuesday
Rain. Cloudy, with a high near 52.
Tuesday Night
Rain, mainly before 10pm. Cloudy, with a low around 48.
Wednesday
A chance of rain. Mostly cloudy, with a high near 55.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 46.
Thursday
A chance of rain. Partly sunny, with a high near 59.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 48.
Friday
A slight chance of rain. Partly sunny, with a high near 62.
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Forecast Area
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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 21, 2026
Forecast Valid:
3am PST Feb 21, 2026-6pm PST Feb 27, 2026
 
Forecast Discussion
 
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Additional Resources

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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