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

A Couple of Fast Moving Storms Affecting Areas Along and East of the Rockies

A couple of storm systems will impact travel conditions through the first half of this weekend. Heavy snow from the mountains of the West will move into the upper Midwest and upper Great Lakes through tonight. Record warmth and Gulf moisture along and east of the Mississippi River will fuel severe thunderstorms, heavy rainfall, fog for the Tennessee Valley and deep South on Friday into Saturday. Read More >

Hazardous Weather Conditions

Current conditions at

LYONS VALLEY (COWC1)

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

NA

42°F

6°C

Humidity 62%
Wind Speed WNW 8 MPH
Barometer NA
Dewpoint 30°F (-1°C)
Visibility NA
Wind Chill37°F (3°C)
Last update 08 Jan 04:01 PM PST
Extended Forecast for

5 Miles SW Lakeport CA

Cold Weather Advisory January 9, 02:00am until January 9, 09:00am
Click here for hazard details and duration
Cold Weather Advisory

  • Tonight

    Tonight: Mostly clear, with a low around 36. Northeast wind 3 to 6 mph.

    Low: 36 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 51. East wind around 6 mph.

    High: 51 °F

    Sunny

  • Friday Night

    Friday Night: Widespread haze after 1am. Mostly clear, with a low around 39. East wind 5 to 7 mph.

    Low: 39 °F

    Mostly Clear
    then Haze

  • Saturday

    Saturday: Mostly sunny, with a high near 52. East wind around 8 mph.

    High: 52 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 42. Northeast wind around 6 mph.

    Low: 42 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 56. Northeast wind around 6 mph becoming light and variable in the afternoon.

    High: 56 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 43.

    Low: 43 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 60.

    High: 60 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 36. Northeast wind 3 to 6 mph.
Friday
Sunny, with a high near 51. East wind around 6 mph.
Friday Night
Widespread haze after 1am. Mostly clear, with a low around 39. East wind 5 to 7 mph.
Saturday
Mostly sunny, with a high near 52. East wind around 8 mph.
Saturday Night
Mostly cloudy, with a low around 42. Northeast wind around 6 mph.
Sunday
Mostly sunny, with a high near 56. Northeast wind around 6 mph becoming light and variable in the afternoon.
Sunday Night
Partly cloudy, with a low around 43.
Monday
Sunny, with a high near 60.
Monday Night
Mostly clear, with a low around 47.
Tuesday
Sunny, with a high near 63.
Tuesday Night
Mostly clear, with a low around 49.
Wednesday
Sunny, with a high near 65.
Wednesday Night
Clear, with a low around 50.
Thursday
Sunny, with a high near 66.
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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:
1:21 pm PST Jan 8, 2026
Forecast Valid:
4pm PST Jan 8, 2026-6pm PST Jan 15, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation