Heavy Great Lakes Snow through Friday; Extreme Cold and Potential for Major Winter Storm Late Week into this Weekend

Multiple clipper systems will bring cold temperatures and enhance lake-effect snow downwind of the Great Lakes. An arctic blast will bring frigid temperatures accompanied with gusty winds that may lead to dangerous wind chills beginning in the Northern Plains Thursday before expanding to the South and East. An expansive winter storm will start Friday in the Southern Rockies/Plains and Mid-South. Read More >

Current conditions at

LYONS VALLEY (COWC1)

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

NA

52°F

11°C

Humidity 31%
Wind Speed ESE 5 MPH
Barometer NA
Dewpoint 22°F (-6°C)
Visibility NA
Last update 21 Jan 02:01 AM PST
Extended Forecast for

5 Miles W Lakeport CA

  • Overnight

    Overnight: Mostly cloudy, with a low around 51. Light east northeast wind.

    Low: 51 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Cloudy, with a high near 58. East southeast wind around 7 mph.

    High: 58 °F

    Cloudy

  • Wednesday Night

    Wednesday Night: Cloudy, with a low around 50. Light and variable wind.

    Low: 50 °F

    Cloudy

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 59. Northwest wind 3 to 7 mph.

    High: 59 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 45. North northwest wind 5 to 9 mph becoming calm  in the evening.

    Low: 45 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 57. Light and variable wind becoming east northeast around 5 mph in the morning.

    High: 57 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 58.

    High: 58 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 42.

    Low: 42 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 51. Light east northeast wind.
Wednesday
Cloudy, with a high near 58. East southeast wind around 7 mph.
Wednesday Night
Cloudy, with a low around 50. Light and variable wind.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 59. Northwest wind 3 to 7 mph.
Thursday Night
Mostly clear, with a low around 45. North northwest wind 5 to 9 mph becoming calm in the evening.
Friday
Sunny, with a high near 57. Light and variable wind becoming east northeast around 5 mph in the morning.
Friday Night
Mostly clear, with a low around 43.
Saturday
Sunny, with a high near 58.
Saturday Night
Partly cloudy, with a low around 42.
Sunday
Partly sunny, with a high near 54.
Sunday Night
Mostly cloudy, with a low around 43.
Monday
Mostly sunny, with a high near 54.
Monday Night
Partly cloudy, with a low around 44.
Tuesday
A slight chance of drizzle. Partly sunny, with a high near 55.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles W Lakeport CA
 39.03°N 123.03°W (Elev. 2398 ft)
1:10 am PST Jan 21, 2026
2am PST Jan 21, 2026-6pm PST Jan 27, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database