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

57°F

14°C

Humidity 41%
Wind Speed E 3 MPH
Barometer NA
Dewpoint 33°F (1°C)
Visibility NA
Last update 21 Jan 03:01 PM PST
Extended Forecast for

9 Miles ESE Calpella CA

  • Tonight

    Tonight: Cloudy, with a low around 46. Light and variable wind.

    Low: 46 °F

    Cloudy

  • Thursday

    Thursday: Mostly cloudy through mid morning, then gradual clearing, with a high near 62. West northwest wind 3 to 7 mph.

    High: 62 °F

    Becoming
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 42. Northwest wind around 5 mph becoming light and variable  in the evening.

    Low: 42 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 60. Light and variable wind becoming west around 5 mph in the afternoon.

    High: 60 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 39. Northeast wind around 7 mph.

    Low: 39 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 60. Northeast wind around 7 mph.

    High: 60 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 38.

    Low: 38 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 56.

    High: 56 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 39.

    Low: 39 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Cloudy, with a low around 46. Light and variable wind.
Thursday
Mostly cloudy through mid morning, then gradual clearing, with a high near 62. West northwest wind 3 to 7 mph.
Thursday Night
Mostly clear, with a low around 42. Northwest wind around 5 mph becoming light and variable in the evening.
Friday
Sunny, with a high near 60. Light and variable wind becoming west around 5 mph in the afternoon.
Friday Night
Clear, with a low around 39. Northeast wind around 7 mph.
Saturday
Sunny, with a high near 60. Northeast wind around 7 mph.
Saturday Night
Partly cloudy, with a low around 38.
Sunday
Partly sunny, with a high near 56.
Sunday Night
Mostly cloudy, with a low around 39.
Monday
Mostly sunny, with a high near 57.
Monday Night
Partly cloudy, with a low around 40.
Tuesday
Mostly sunny, with a high near 59.
Tuesday Night
A slight chance of rain. Mostly cloudy, with a low around 44.
Wednesday
A chance of rain. Mostly cloudy, with a high near 57.
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ABOUT THIS FORECAST

 
Point Forecast:
9 Miles ESE Calpella CA
 39.19°N 123.05°W (Elev. 2031 ft)
1:23 pm PST Jan 21, 2026
3pm PST Jan 21, 2026-6pm PST Jan 28, 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