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

58°F

14°C

Humidity 26%
Wind Speed WNW 10 MPH
Barometer NA
Dewpoint 23°F (-5°C)
Visibility NA
Last update 18 Jan 06:01 PM PST
Extended Forecast for

4 Miles ENE Calpella CA

  • Tonight

    Tonight: Mostly clear, with a low around 37. Calm wind.

    Low: 37 °F

    Mostly Clear

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 69. Calm wind.

    High: 69 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 37. Calm wind becoming east around 5 mph after midnight.

    Low: 37 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 68. East southeast wind around 5 mph becoming calm  in the morning.

    High: 68 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 45. Calm wind.

    Low: 45 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 65. Calm wind.

    High: 65 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 43.

    Low: 43 °F

    Mostly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 37. Calm wind.
M.L.King Day
Sunny, with a high near 69. Calm wind.
Monday Night
Mostly clear, with a low around 37. Calm wind becoming east around 5 mph after midnight.
Tuesday
Mostly sunny, with a high near 68. East southeast wind around 5 mph becoming calm in the morning.
Tuesday Night
Mostly cloudy, with a low around 45. Calm wind.
Wednesday
Partly sunny, with a high near 65. Calm wind.
Wednesday Night
Mostly cloudy, with a low around 43.
Thursday
Sunny, with a high near 65.
Thursday Night
Mostly clear, with a low around 41.
Friday
Sunny, with a high near 63.
Friday Night
Partly cloudy, with a low around 41.
Saturday
Mostly sunny, with a high near 61.
Saturday Night
Partly cloudy, with a low around 40.
Sunday
Mostly sunny, with a high near 61.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ENE Calpella CA
 39.24°N 123.12°W (Elev. 997 ft)
1:10 pm PST Jan 18, 2026
6pm PST Jan 18, 2026-6pm PST Jan 25, 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