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

ALDER RIDGE (ADFW1)

Lat: 46.26833°NLon: 117.49833°WElev: 4500.0ft.

NA

36°F

2°C

Humidity 100%
Wind Speed SSE 7 MPH
Barometer NA
Dewpoint 36°F (2°C)
Visibility NA
Wind Chill30°F (-1°C)
Last update 25 Dec 05:10 AM PST
Extended Forecast for

13 Miles SSE Pomeroy WA

Winter Weather Advisory December 26, 04:00am until December 27, 10:00am
Click here for hazard details and duration
Winter Weather Advisory

  • Christmas Day

    Christmas Day: A 40 percent chance of rain, mainly after 10am. Snow level 5700 feet. Partly sunny, with a high near 46. South wind around 15 mph, with gusts as high as 25 mph. New precipitation amounts of less than a tenth of an inch possible.

    High: 46 °F

    Chance Rain

  • Tonight

    Tonight: A chance of rain and snow before 2am, then a chance of snow. Snow level 4700 feet lowering to 4000 feet after midnight . Increasing clouds, with a low around 33. Southwest wind 11 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    Low: 33 °F

    Slight Chance
    Rain/Snow
    then Chance
    Rain/Snow

  • Friday

    Friday: Snow. High near 39. Breezy, with a southwest wind 14 to 22 mph, with gusts as high as 36 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

    High: 39 °F

    Snow and
    Breezy

  • Friday Night

    Friday Night: Snow, mainly before 4am. Low around 25. Windy, with a southwest wind 30 to 34 mph, with gusts as high as 55 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    Low: 25 °F

    Snow and
    Windy

  • Saturday

    Saturday: A 50 percent chance of snow, mainly before 10am. Partly sunny, with a high near 28. Windy, with a west wind 18 to 25 mph, with gusts as high as 41 mph. New snow accumulation of less than one inch possible.

    High: 28 °F

    Chance Snow
    and Windy
    then Slight
    Chance Snow
    and Breezy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 21.

    Low: 21 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 30.

    High: 30 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 22.

    Low: 22 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 33.

    High: 33 °F

    Partly Sunny

Detailed Forecast

Christmas Day
A 40 percent chance of rain, mainly after 10am. Snow level 5700 feet. Partly sunny, with a high near 46. South wind around 15 mph, with gusts as high as 25 mph. New precipitation amounts of less than a tenth of an inch possible.
Tonight
A chance of rain and snow before 2am, then a chance of snow. Snow level 4700 feet lowering to 4000 feet after midnight . Increasing clouds, with a low around 33. Southwest wind 11 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Friday
Snow. High near 39. Breezy, with a southwest wind 14 to 22 mph, with gusts as high as 36 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
Friday Night
Snow, mainly before 4am. Low around 25. Windy, with a southwest wind 30 to 34 mph, with gusts as high as 55 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Saturday
A 50 percent chance of snow, mainly before 10am. Partly sunny, with a high near 28. Windy, with a west wind 18 to 25 mph, with gusts as high as 41 mph. New snow accumulation of less than one inch possible.
Saturday Night
Mostly cloudy, with a low around 21.
Sunday
Partly sunny, with a high near 30.
Sunday Night
Partly cloudy, with a low around 22.
Monday
Partly sunny, with a high near 33.
Monday Night
Mostly cloudy, with a low around 25.
Tuesday
Partly sunny, with a high near 36.
Tuesday Night
Mostly cloudy, with a low around 28.
Wednesday
Mostly cloudy, with a high near 39.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
13 Miles SSE Pomeroy WA
 46.31°N 117.48°W (Elev. 4006 ft)
Last Update:
2:17 am PST Dec 25, 2025
Forecast Valid:
6am PST Dec 25, 2025-6pm PST Dec 31, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation