Lake-effect Snow and Whiteout Conditions in the Great Lakes Region; Below-average Temperatures in the East

Heavy lake-effect and lake-enhanced snow will persist downwind of the Great Lakes and produce some whiteout conditions that could cause difficult travel conditions. A coastal low will produce moderate to heavy snow over parts of southern and eastern New England into the afternoon. Below average temperatures are expected across the eastern U.S., particularly with chilly morning temperatures. Read More >

Current conditions at

LYONS VALLEY (COWC1)

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

NA

60°F

16°C

Humidity 25%
Wind Speed ESE 3 MPH
Barometer NA
Dewpoint 24°F (-4°C)
Visibility NA
Last update 19 Jan 10:01 PM PST
Extended Forecast for

5 Miles SW Lakeport CA

  • Tonight

    Tonight: Partly cloudy, with a low around 48. East northeast wind 3 to 6 mph.

    Low: 48 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 59. East wind 3 to 6 mph.

    High: 59 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 50. Light east northeast wind.

    Low: 50 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 58. Northeast wind around 5 mph becoming light and variable  in the afternoon.

    High: 58 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 49. North northeast wind around 5 mph.

    Low: 49 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 59. North northeast wind around 6 mph becoming west northwest in the afternoon.

    High: 59 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 46.

    Low: 46 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 57.

    High: 57 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 45.

    Low: 45 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 48. East northeast wind 3 to 6 mph.
Tuesday
Partly sunny, with a high near 59. East wind 3 to 6 mph.
Tuesday Night
Mostly cloudy, with a low around 50. Light east northeast wind.
Wednesday
Mostly cloudy, with a high near 58. Northeast wind around 5 mph becoming light and variable in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 49. North northeast wind around 5 mph.
Thursday
Mostly sunny, with a high near 59. North northeast wind around 6 mph becoming west northwest in the afternoon.
Thursday Night
Mostly clear, with a low around 46.
Friday
Sunny, with a high near 57.
Friday Night
Mostly clear, with a low around 45.
Saturday
Sunny, with a high near 58.
Saturday Night
Partly cloudy, with a low around 45.
Sunday
Mostly cloudy, with a high near 55.
Sunday Night
Mostly cloudy, with a low around 47.
Monday
Mostly sunny, with a high near 57.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SW Lakeport CA
 38.99°N 122.99°W (Elev. 2595 ft)
10:48 pm PST Jan 19, 2026
11pm PST Jan 19, 2026-6pm PST Jan 26, 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