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

55°F

13°C

Humidity 33%
Wind Speed E 11 MPH
Barometer NA
Dewpoint 26°F (-3°C)
Visibility NA
Last update 21 Jan 11:01 AM PST
Extended Forecast for

5 Miles SE Hopland CA

  • Today

    Today: Cloudy, with a high near 63. South wind 7 to 10 mph.

    High: 63 °F

    Cloudy

  • Tonight

    Tonight: Cloudy, with a low around 43. South wind 5 to 7 mph becoming calm  in the evening.

    Low: 43 °F

    Cloudy

  • Thursday

    Thursday: Cloudy through mid morning, then gradual clearing, with a high near 64. Calm wind becoming north northwest 5 to 7 mph in the morning.

    High: 64 °F

    Gradual
    Clearing

  • Thursday Night

    Thursday Night: Patchy fog after 1am.  Otherwise, partly cloudy, with a low around 42. North northeast wind 5 to 7 mph becoming calm  in the evening.

    Low: 42 °F

    Mostly Clear
    then Patchy
    Fog

  • Friday

    Friday: Sunny, with a high near 62. Calm wind.

    High: 62 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 39. Calm wind.

    Low: 39 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 63.

    High: 63 °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 59.

    High: 59 °F

    Partly Sunny

Detailed Forecast

Today
Cloudy, with a high near 63. South wind 7 to 10 mph.
Tonight
Cloudy, with a low around 43. South wind 5 to 7 mph becoming calm in the evening.
Thursday
Cloudy through mid morning, then gradual clearing, with a high near 64. Calm wind becoming north northwest 5 to 7 mph in the morning.
Thursday Night
Patchy fog after 1am. Otherwise, partly cloudy, with a low around 42. North northeast wind 5 to 7 mph becoming calm in the evening.
Friday
Sunny, with a high near 62. Calm wind.
Friday Night
Mostly clear, with a low around 39. Calm wind.
Saturday
Sunny, with a high near 63.
Saturday Night
Partly cloudy, with a low around 38.
Sunday
Partly sunny, with a high near 59.
Sunday Night
Mostly cloudy, with a low around 39.
Monday
Mostly sunny, with a high near 60.
Monday Night
Mostly cloudy, with a low around 40.
Tuesday
A slight chance of drizzle. Partly sunny, with a high near 60.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SE Hopland CA
 38.91°N 123.06°W (Elev. 889 ft)
1:10 am PST Jan 21, 2026
11am 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