Lake Effect Snow through Friday; Heavy Rain, Thunderstorms and Mountain Snow in California

Periods of moderate to heavy lake effect snow will continue through Friday downwind of Lake Erie and Ontario. Several additional inches of accumulating snow are expected. A Pacific storm will bring heavy rain and mountain snow across California, the Southwest and Intermountain West today. Isolated severe thunderstorms and scattered flash flooding is possible across parts of southern California. Read More >

Current conditions at

LYONS VALLEY (COWC1)

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

NA

45°F

7°C

Humidity 100%
Wind Speed SSE 8 MPH
Barometer NA
Dewpoint 45°F (7°C)
Visibility NA
Wind Chill41°F (5°C)
Last update 01 Jan 12:01 PM PST
Extended Forecast for

5 Miles SW 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
  • New Year's Day

    New Year's Day: Rain.  High near 51. South southeast wind 7 to 11 mph, with gusts as high as 21 mph.  Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 51 °F

    Rain

  • Tonight

    Tonight: Rain.  Low around 47. South wind 9 to 14 mph, with gusts as high as 24 mph.  Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 47 °F

    Rain

  • Friday

    Friday: A 50 percent chance of rain.  Cloudy, with a high near 50. Breezy, with a south southeast wind 11 to 18 mph, with gusts as high as 32 mph.  New precipitation amounts between a tenth and quarter of an inch possible.

    High: 50 °F

    Chance Rain
    and Breezy

  • Friday Night

    Friday Night: Rain.  Low around 47. 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: 47 °F

    Rain and
    Windy

  • Saturday

    Saturday: Rain.  High near 50. 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 half and three quarters of an inch possible.

    High: 50 °F

    Rain and
    Windy

  • Saturday Night

    Saturday Night: Rain.  Low around 46. Windy, with a south wind around 22 mph, with gusts as high as 38 mph.  Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 46 °F

    Rain and
    Windy

  • Sunday

    Sunday: Rain before 4pm, then showers and possibly a thunderstorm after 4pm.  High near 49. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 49 °F

    Showers

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm before 10pm, then rain after 10pm.  Cloudy, with a low around 44.

    Low: 44 °F

    Showers

  • Monday

    Monday: Rain.  Mostly cloudy, with a high near 45.

    High: 45 °F

    Rain

Detailed Forecast

New Year's Day
Rain. High near 51. South southeast wind 7 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
Rain. Low around 47. South wind 9 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
A 50 percent chance of rain. Cloudy, with a high near 50. Breezy, with a south southeast wind 11 to 18 mph, with gusts as high as 32 mph. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
Rain. Low around 47. 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 50. 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 half and three quarters of an inch possible.
Saturday Night
Rain. Low around 46. Windy, with a south wind around 22 mph, with gusts as high as 38 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 49. 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. Cloudy, with a low around 44.
Monday
Rain. Mostly cloudy, with a high near 45.
Monday Night
Rain likely, mainly before 10pm. Mostly cloudy, with a low around 43.
Tuesday
A slight chance of rain or drizzle. Partly sunny, with a high near 48.
Tuesday Night
A chance of drizzle. Mostly cloudy, with a low around 42.
Wednesday
A chance of drizzle. Partly sunny, with a high near 47.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SW Lakeport CA
 38.99°N 122.99°W (Elev. 2595 ft)
11:49 am PST Jan 1, 2026
12pm PST Jan 1, 2026-6pm PST Jan 7, 2026
 
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Additional Resources

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