Heavy Rain in the Southern U.S.; Winter Storm to Impact the Northern Mid-Atlantic and Interior Northeast

A storm system stretching from the Tennessee Valley to the Gulf Coast will bring a variety of hazards to the Eastern U.S. through Tuesday. On the south side of the system, heavy rain and thunderstorms will persist across the Southern U.S. Further north, a wintry precipitation mix is expected from the Central Appalachians to the interior Northeast through Tuesday. Read More >

Current conditions at

LYONS VALLEY (COWC1)

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

NA

50°F

10°C

Humidity 44%
Wind Speed N 5 MPH
Barometer NA
Dewpoint 29°F (-2°C)
Visibility NA
Wind Chill48°F (9°C)
Last update 01 Dec 08:01 PM PST
Extended Forecast for

10 Miles NNW Lakeport CA

  • Tonight

    Tonight: Mostly cloudy, then becoming mostly clear toward daybreak, with a low around 36. Calm wind.

    Low: 36 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 64. Calm wind becoming northwest around 6 mph in the afternoon.

    High: 64 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 34. West northwest wind 5 to 9 mph becoming calm  in the evening.

    Low: 34 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 62. Calm wind.

    High: 62 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 33. East northeast wind around 6 mph.

    Low: 33 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 62. Light and variable wind.

    High: 62 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 38.

    Low: 38 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny

  • Friday Night

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

    Low: 42 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, then becoming mostly clear toward daybreak, with a low around 36. Calm wind.
Tuesday
Sunny, with a high near 64. Calm wind becoming northwest around 6 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 34. West northwest wind 5 to 9 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 62. Calm wind.
Wednesday Night
Partly cloudy, with a low around 33. East northeast wind around 6 mph.
Thursday
Mostly sunny, with a high near 62. Light and variable wind.
Thursday Night
Mostly clear, with a low around 38.
Friday
Mostly sunny, with a high near 65.
Friday Night
Partly cloudy, with a low around 42.
Saturday
Mostly sunny, with a high near 61.
Saturday Night
A slight chance of rain. Partly cloudy, with a low around 41.
Sunday
A slight chance of rain. Mostly sunny, with a high near 61.
Sunday Night
Partly cloudy, with a low around 39.
Monday
Mostly sunny, with a high near 65.
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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 pm PST Dec 1, 2025
8pm PST Dec 1, 2025-6pm PST Dec 8, 2025
 
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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