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 >

Current conditions at

CANYON CREEK (CYFW1)

Lat: 45.92944°NLon: 122.20278°WElev: 2592.0ft.

NA

36°F

2°C

Humidity 100%
Wind Speed NNW 1 MPH
Barometer NA
Dewpoint 36°F (2°C)
Visibility NA
Last update 24 Dec 09:52 PM PST
Extended Forecast for

Mount St Helens WA

  • Tonight

    Tonight: Mostly cloudy, with a low around 23. Windy, with a south southwest wind 15 to 25 mph becoming east southeast after midnight. Winds could gust as high as 30 mph.

    Low: 23 °F

    Mostly Cloudy
    and Windy

  • Christmas Day

    Christmas Day: Snow. High near 30. Very windy, with a south wind 25 to 30 mph decreasing to 11 to 16 mph in the afternoon. Winds could gust as high as 37 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    High: 30 °F

    Snow and Very
    Windy then
    Snow Likely
    and Breezy

  • Thursday Night

    Thursday Night: Snow likely, mainly between 10pm and 4am, then snow showers after 4am. Steady temperature around 27. Breezy, with a south southeast wind around 18 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

    Low: 27 °F

    Snow Showers
    and Breezy

  • Friday

    Friday: Snow showers. The snow could be heavy at times. High near 26. Windy, with a west southwest wind 17 to 22 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.

    High: 26 °F

    Heavy Snow
    and Windy

  • Friday Night

    Friday Night: Snow showers, mainly before 4am. Low around 21. Windy, with a west wind 25 to 29 mph, with gusts as high as 36 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

    Low: 21 °F

    Snow Showers
    and Windy

  • Saturday

    Saturday: A 50 percent chance of snow showers, mainly before 10am. Mostly cloudy, with a high near 23. Blustery. New snow accumulation of less than a half inch possible.

    High: 23 °F

    Chance Snow
    Showers and
    Blustery

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 17.

    Low: 17 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 27.

    High: 27 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 19. Blustery.

    Low: 19 °F

    Mostly Cloudy
    and Blustery

Detailed Forecast

Tonight
Mostly cloudy, with a low around 23. Windy, with a south southwest wind 15 to 25 mph becoming east southeast after midnight. Winds could gust as high as 30 mph.
Christmas Day
Snow. High near 30. Very windy, with a south wind 25 to 30 mph decreasing to 11 to 16 mph in the afternoon. Winds could gust as high as 37 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Thursday Night
Snow likely, mainly between 10pm and 4am, then snow showers after 4am. Steady temperature around 27. Breezy, with a south southeast wind around 18 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
Friday
Snow showers. The snow could be heavy at times. High near 26. Windy, with a west southwest wind 17 to 22 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.
Friday Night
Snow showers, mainly before 4am. Low around 21. Windy, with a west wind 25 to 29 mph, with gusts as high as 36 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.
Saturday
A 50 percent chance of snow showers, mainly before 10am. Mostly cloudy, with a high near 23. Blustery. New snow accumulation of less than a half inch possible.
Saturday Night
Mostly cloudy, with a low around 17.
Sunday
Partly sunny, with a high near 27.
Sunday Night
Mostly cloudy, with a low around 19. Blustery.
Monday
Partly sunny, with a high near 30. Blustery.
Monday Night
Partly cloudy, with a low around 22. Blustery.
Tuesday
Partly sunny, with a high near 33. Breezy.
Tuesday Night
A slight chance of snow showers. Partly cloudy, with a low around 25. Blustery.
Wednesday
A chance of snow showers. Partly sunny, with a high near 32. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mount St Helens WA
 46.2°N 122.21°W (Elev. 6598 ft)
Last Update:
9:46 pm PST Dec 24, 2025
Forecast Valid:
10pm PST Dec 24, 2025-6pm PST Dec 31, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation