National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >

Hazardous Weather Conditions

Current conditions at

US-50 Spooner Summit (SPRNV)

Lat: 39.10403°NLon: 119.89655°WElev: 7224.0ft.

NA

30°F

-1°C

Humidity 100%
Wind Speed WNW 0 MPH
Barometer NA
Dewpoint 30°F (-1°C)
Visibility NA
Last update 25 Dec 03:11 PM PST
Extended Forecast for

Glenbrook NV

Winter Storm Warning December 25, 03:20pm until December 26, 10:00am
Click here for hazard details and duration
Winter Storm Warning
  •  
    Winter Storm Warning December 25, 03:20pm until December 26, 10:00am

    NOW until 10:00am Fri

    Winter Storm Warning

  • Christmas Day

    High: 39 °F

    Snow and
    Areas Fog

  • Tonight

    Tonight: Snow. The snow could be heavy at times. Areas of fog before 11pm, then areas of fog after 2am. Areas of freezing fog between 11pm and 2am. Low around 27. Breezy, with a southwest wind around 20 mph, with gusts as high as 35 mph. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.

    Low: 27 °F

    Heavy Snow
    and Areas
    Freezing Fog

  • Friday

    Friday: Snow likely, mainly between 10am and 1pm. Areas of fog between 11am and noon. Widespread dense freezing fog, mainly before 10am. Otherwise, partly sunny, with a high near 36. Breezy, with a southwest wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.

    High: 36 °F

    Snow Likely
    and Dense
    Freezing Fog

  • Friday Night

    Friday Night: Snow likely, mainly before 10pm. Patchy fog before 11pm. Otherwise, mostly cloudy, with a low around 21. Southwest wind 5 to 10 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 21 °F

    Snow Likely
    and Patchy
    Fog

  • Saturday

    Saturday: A 20 percent chance of snow before 10am. Mostly sunny, with a high near 36. West wind around 5 mph becoming calm.

    High: 36 °F

    Slight Chance
    Snow then
    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 17. Calm wind becoming east around 5 mph.

    Low: 17 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 34.

    High: 34 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 16.

    Low: 16 °F

    Mostly Clear

Detailed Forecast

Christmas Day
Snow. Areas of fog. High near 39. Breezy, with a southwest wind around 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. Total daytime snow accumulation of 1 to 3 inches possible.
Tonight
Snow. The snow could be heavy at times. Areas of fog before 11pm, then areas of fog after 2am. Areas of freezing fog between 11pm and 2am. Low around 27. Breezy, with a southwest wind around 20 mph, with gusts as high as 35 mph. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.
Friday
Snow likely, mainly between 10am and 1pm. Areas of fog between 11am and noon. Widespread dense freezing fog, mainly before 10am. Otherwise, partly sunny, with a high near 36. Breezy, with a southwest wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.
Friday Night
Snow likely, mainly before 10pm. Patchy fog before 11pm. Otherwise, mostly cloudy, with a low around 21. Southwest wind 5 to 10 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Saturday
A 20 percent chance of snow before 10am. Mostly sunny, with a high near 36. West wind around 5 mph becoming calm.
Saturday Night
Partly cloudy, with a low around 17. Calm wind becoming east around 5 mph.
Sunday
Mostly sunny, with a high near 34.
Sunday Night
Mostly clear, with a low around 16.
Monday
Sunny, with a high near 37.
Monday Night
Mostly clear, with a low around 21.
Tuesday
Sunny, with a high near 43.
Tuesday Night
Mostly clear, with a low around 27.
Wednesday
Sunny, with a high near 48.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Glenbrook NV
 39.1°N 119.94°W (Elev. 6716 ft)
Last Update:
1:15 pm PST Dec 25, 2025
Forecast Valid:
3pm PST Dec 25, 2025-6pm PST Dec 31, 2025
 
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Additional Resources

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