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

DRY CRK (DCCW1)

Lat: 45.94361°NLon: 121.9875°WElev: 2697.0ft.

NA

34°F

1°C

Humidity 100%
Wind Speed ESE 1 MPH
Barometer NA
Dewpoint 34°F (1°C)
Visibility NA
Last update 25 Dec 02:25 AM PST
Extended Forecast for

15 Miles NE Mount St Helens WA

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

  • Overnight

    Overnight: A slight chance of snow before 4am, then a slight chance of rain and snow. Mostly cloudy, with a low around 28. Southeast wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.

    Low: 28 °F

    Slight Chance
    Rain/Snow

  • Christmas Day

    Christmas Day: Rain and snow, mainly before 1pm. Snow level 4800 feet lowering to 4200 feet in the afternoon . High near 36. Southeast wind 6 to 13 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

    High: 36 °F

    Rain/Snow
    then Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: A chance of snow between 2am and 4am, then snow showers likely after 4am. Mostly cloudy, with a low around 28. South wind around 7 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    Low: 28 °F

    Chance Snow
    then Snow
    Showers
    Likely

  • Friday

    Friday: Snow showers. High near 31. Southwest wind 8 to 11 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.

    High: 31 °F

    Snow Showers

  • Friday Night

    Friday Night: Snow showers. Low around 23. Breezy, with a west wind around 15 mph, with gusts as high as 32 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

    Low: 23 °F

    Snow Showers
    and Breezy

  • Saturday

    Saturday: A 50 percent chance of snow showers. Mostly cloudy, with a high near 26. New snow accumulation of less than a half inch possible.

    High: 26 °F

    Chance Snow
    Showers

  • Saturday Night

    Saturday Night: Patchy fog before 10pm. Otherwise, mostly cloudy, with a low around 20.

    Low: 20 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 32.

    High: 32 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 23.

    Low: 23 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A slight chance of snow before 4am, then a slight chance of rain and snow. Mostly cloudy, with a low around 28. Southeast wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Christmas Day
Rain and snow, mainly before 1pm. Snow level 4800 feet lowering to 4200 feet in the afternoon . High near 36. Southeast wind 6 to 13 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.
Thursday Night
A chance of snow between 2am and 4am, then snow showers likely after 4am. Mostly cloudy, with a low around 28. South wind around 7 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Friday
Snow showers. High near 31. Southwest wind 8 to 11 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.
Friday Night
Snow showers. Low around 23. Breezy, with a west wind around 15 mph, with gusts as high as 32 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
Saturday
A 50 percent chance of snow showers. Mostly cloudy, with a high near 26. New snow accumulation of less than a half inch possible.
Saturday Night
Patchy fog before 10pm. Otherwise, mostly cloudy, with a low around 20.
Sunday
Partly sunny, with a high near 32.
Sunday Night
Mostly cloudy, with a low around 23.
Monday
Mostly cloudy, with a high near 37.
Monday Night
Mostly cloudy, with a low around 28.
Tuesday
Mostly cloudy, with a high near 39.
Tuesday Night
A slight chance of rain. Snow level 5900 feet. Mostly cloudy, with a low around 30.
Wednesday
A chance of rain and snow. Snow level 5500 feet. Mostly cloudy, with a high near 39.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
15 Miles NE Mount St Helens WA
 46.3°N 121.93°W (Elev. 3976 ft)
Last Update:
2:41 am PST Dec 25, 2025
Forecast Valid:
3am PST Dec 25, 2025-6pm PST Dec 31, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation