Powerful Winter Storm from the Upper Midwest into the Northeast; Severe Thunderstorms in the Midwest and Ohio Valley

A rapidly-intensifying storm is expected to bring heavy snow, blizzard conditions, and icing from the Upper Midwest through the Great Lakes and Northeast. Scattered severe thunderstorms may produce severe/damaging wind gusts and a couple of tornadoes across parts of the Midwest and lower Ohio Valley through the evening. Arctic air will expand across the central and southern U.S.. Read More >

Current conditions at

LYONS VALLEY (COWC1)

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

NA

49°F

9°C

Humidity 30%
Wind Speed E 3 MPH
Barometer NA
Dewpoint 19°F (-7°C)
Visibility NA
Last update 29 Dec 03:01 AM PST
Extended Forecast for

10 Miles NNW Lakeport CA

  • Today

    Today: Patchy fog before 10am.  Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 62. Calm wind becoming northeast around 5 mph.

    High: 62 °F

    Patchy Fog
    then Sunny

  • Tonight

    Tonight: Patchy fog after 10pm.  Otherwise, increasing clouds, with a low around 38. Light north wind.

    Low: 38 °F

    Patchy Fog

  • Tuesday

    Tuesday: Patchy fog before 10am.  Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 62. Southeast wind 3 to 5 mph.

    High: 62 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 41. East northeast wind around 5 mph.

    Low: 41 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Rain likely, mainly after 4pm.  Mostly cloudy, with a high near 58. East southeast wind 3 to 6 mph.  Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 58 °F

    Rain Likely

  • Wednesday Night

    Wednesday Night: Rain.  Low around 43. East wind around 6 mph.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 43 °F

    Rain

  • New Year's Day

    New Year's Day: Rain.  High near 55. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 55 °F

    Rain

  • Thursday Night

    Thursday Night: Rain.  Cloudy, with a low around 43.

    Low: 43 °F

    Rain

  • Friday

    Friday: Rain.  Mostly cloudy, with a high near 55.

    High: 55 °F

    Rain

Detailed Forecast

Today
Patchy fog before 10am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 62. Calm wind becoming northeast around 5 mph.
Tonight
Patchy fog after 10pm. Otherwise, increasing clouds, with a low around 38. Light north wind.
Tuesday
Patchy fog before 10am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 62. Southeast wind 3 to 5 mph.
Tuesday Night
Mostly cloudy, with a low around 41. East northeast wind around 5 mph.
Wednesday
Rain likely, mainly after 4pm. Mostly cloudy, with a high near 58. East southeast wind 3 to 6 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Rain. Low around 43. East wind around 6 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
New Year's Day
Rain. High near 55. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
Rain. Cloudy, with a low around 43.
Friday
Rain. Mostly cloudy, with a high near 55.
Friday Night
Rain. Mostly cloudy, with a low around 42.
Saturday
Rain. Mostly cloudy, with a high near 53.
Saturday Night
Rain likely. Mostly cloudy, with a low around 41.
Sunday
Rain likely. Mostly cloudy, with a high near 53.
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ABOUT THIS FORECAST

 
Point Forecast:
10 Miles NNW Lakeport CA
 39.17°N 122.98°W (Elev. 1998 ft)
1:10 am PST Dec 29, 2025
4am PST Dec 29, 2025-6pm PST Jan 4, 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