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

36°F

2°C

Humidity 92%
Wind Speed ESE 0 MPH
Barometer NA
Dewpoint 34°F (1°C)
Visibility NA
Last update 25 Dec 04:25 AM PST
Extended Forecast for

12 Miles E 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 30 percent chance of rain. Snow level 4500 feet. Mostly cloudy, with a steady temperature around 32. East northeast wind around 10 mph.

    Low: 32 °F

    Chance Rain

  • Christmas Day

    Christmas Day: Rain, mainly before 11am. Snow level 4900 feet lowering to 4200 feet in the afternoon . High near 38. East southeast wind 6 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 100%. New precipitation amounts of less than a tenth of an inch possible.

    High: 38 °F

    Rain then
    Rain Likely

  • Thursday Night

    Thursday Night: A chance of rain and snow before 4am, then snow showers likely, possibly mixed with rain. Snow level 3700 feet lowering to 2900 feet after midnight . Mostly cloudy, with a low around 29. Southeast wind around 6 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 29 °F

    Chance Rain
    then
    Rain/Snow
    Likely

  • Friday

    Friday: Rain and snow showers likely before 9am, then snow showers. High near 32. Southwest wind 6 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.

    High: 32 °F

    Rain/Snow
    then Snow
    Showers

  • Friday Night

    Friday Night: Snow showers. Low around 26. Breezy, with a west wind 14 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    Low: 26 °F

    Snow Showers
    and Breezy

  • Saturday

    Saturday: A 50 percent chance of snow showers. Mostly cloudy, with a high near 29. New snow accumulation of less than a half inch possible.

    High: 29 °F

    Chance Snow
    Showers

  • Saturday Night

    Saturday Night: Patchy fog between 10pm and 1am. Otherwise, mostly cloudy, with a low around 22.

    Low: 22 °F

    Patchy Fog

  • Sunday

    Sunday: Partly sunny, with a high near 33.

    High: 33 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 24.

    Low: 24 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A 30 percent chance of rain. Snow level 4500 feet. Mostly cloudy, with a steady temperature around 32. East northeast wind around 10 mph.
Christmas Day
Rain, mainly before 11am. Snow level 4900 feet lowering to 4200 feet in the afternoon . High near 38. East southeast wind 6 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 100%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
A chance of rain and snow before 4am, then snow showers likely, possibly mixed with rain. Snow level 3700 feet lowering to 2900 feet after midnight . Mostly cloudy, with a low around 29. Southeast wind around 6 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Friday
Rain and snow showers likely before 9am, then snow showers. High near 32. Southwest wind 6 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.
Friday Night
Snow showers. Low around 26. Breezy, with a west wind 14 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Saturday
A 50 percent chance of snow showers. Mostly cloudy, with a high near 29. New snow accumulation of less than a half inch possible.
Saturday Night
Patchy fog between 10pm and 1am. Otherwise, mostly cloudy, with a low around 22.
Sunday
Partly sunny, with a high near 33.
Sunday Night
Mostly cloudy, with a low around 24.
Monday
Mostly cloudy, with a high near 37.
Monday Night
Mostly cloudy, with a low around 26.
Tuesday
Mostly cloudy, with a high near 39.
Tuesday Night
A slight chance of rain. Mostly cloudy, with a low around 29.
Wednesday
A chance of rain. Mostly cloudy, with a high near 40.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
12 Miles E Mount St Helens WA
 46.15°N 121.95°W (Elev. 2769 ft)
Last Update:
4:41 am PST Dec 25, 2025
Forecast Valid:
5am 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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation