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

Lake Effect Snow through Saturday: A Series of Storms Impact the West

Lake effect snow showers will continue through Saturday downwind of Lakes Erie, Ontario and the eastern portion of Lake Superior. A series of storm systems will continue to impact California and the Pacific Northwest through the weekend and into next week, bringing widespread rainfall, mountain snowfall, and gusty winds. Coastal flooding is expected in northern California. Read More >

Hazardous Weather Conditions

Current conditions at

LYONS VALLEY (COWC1)

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

NA

45°F

7°C

Humidity 100%
Wind Speed SE 12 MPH
Barometer NA
Dewpoint 45°F (7°C)
Visibility NA
Wind Chill39°F (4°C)
Last update 01 Jan 06:01 PM PST
Extended Forecast for

5 Miles W Lakeport CA

Flood Watch January 2, 04:00pm until January 4, 10:00pm
Wind Advisory January 2, 01:00pm until January 3, 04:00pm
Click here for hazard details and duration
Flood Watch
Wind Advisory

  • Tonight

    Tonight: Rain. Low around 47. South wind 10 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 47 °F

    Rain

  • Friday

    Friday: A 50 percent chance of rain. Cloudy, with a high near 51. Breezy, with a south southeast wind 15 to 20 mph, with gusts as high as 34 mph. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 51 °F

    Chance Rain
    and Breezy

  • Friday Night

    Friday Night: Rain. Low around 48. Windy, with a south wind around 23 mph, with gusts as high as 40 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

    Low: 48 °F

    Rain and
    Windy

  • Saturday

    Saturday: Rain. High near 52. Windy, with a south wind around 23 mph, with gusts as high as 40 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 52 °F

    Rain and
    Windy

  • Saturday Night

    Saturday Night: Rain. Low around 47. Windy, with a south wind 20 to 23 mph, with gusts as high as 40 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 47 °F

    Rain and
    Windy

  • Sunday

    Sunday: Rain before 4pm, then showers and possibly a thunderstorm after 4pm. High near 51. South southwest wind 11 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 51 °F

    Showers

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm before 10pm, then rain after 10pm. Low around 44. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 44 °F

    Showers

  • Monday

    Monday: Rain. Mostly cloudy, with a high near 46.

    High: 46 °F

    Rain

  • Monday Night

    Monday Night: Rain likely, mainly before 10pm, then a chance of rain with a slight chance of drizzle after 4am. Mostly cloudy, with a low around 43.

    Low: 43 °F

    Rain Likely

Detailed Forecast

Tonight
Rain. Low around 47. South wind 10 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Friday
A 50 percent chance of rain. Cloudy, with a high near 51. Breezy, with a south southeast wind 15 to 20 mph, with gusts as high as 34 mph. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
Rain. Low around 48. Windy, with a south wind around 23 mph, with gusts as high as 40 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Saturday
Rain. High near 52. Windy, with a south wind around 23 mph, with gusts as high as 40 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Saturday Night
Rain. Low around 47. Windy, with a south wind 20 to 23 mph, with gusts as high as 40 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Sunday
Rain before 4pm, then showers and possibly a thunderstorm after 4pm. High near 51. South southwest wind 11 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday Night
Showers and possibly a thunderstorm before 10pm, then rain after 10pm. Low around 44. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Monday
Rain. Mostly cloudy, with a high near 46.
Monday Night
Rain likely, mainly before 10pm, then a chance of rain with a slight chance of drizzle after 4am. Mostly cloudy, with a low around 43.
Tuesday
A slight chance of drizzle before 10am, then a slight chance of drizzle after 4pm. Partly sunny, with a high near 49.
Tuesday Night
A chance of drizzle. Mostly cloudy, with a low around 43.
Wednesday
A chance of drizzle. Partly sunny, with a high near 47.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 40.
Thursday
A chance of rain with a slight chance of drizzle. Mostly sunny, with a high near 46.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles W Lakeport CA
 39.03°N 123.03°W (Elev. 2398 ft)
Last Update:
2:54 pm PST Jan 1, 2026
Forecast Valid:
6pm PST Jan 1, 2026-6pm PST Jan 8, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation