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

39°F

4°C

Humidity 100%
Wind Speed SE 7 MPH
Barometer NA
Dewpoint 39°F (4°C)
Visibility NA
Wind Chill34°F (1°C)
Last update 24 Dec 01:52 PM PST
Extended Forecast for

Mount St Helens WA

  • This Afternoon

    This Afternoon: A 50 percent chance of snow showers, mainly before 5pm. Mostly cloudy, with a high near 32. Windy, with a southwest wind 16 to 22 mph, with gusts as high as 32 mph. Total daytime snow accumulation of 3 to 5 inches possible.

    High: 32 °F

    Chance Snow
    Showers and
    Windy

  • Tonight

    Tonight: Mostly cloudy, with a low around 20. Windy, with a southwest wind 10 to 15 mph becoming east southeast 17 to 22 mph after midnight. Winds could gust as high as 29 mph.

    Low: 20 °F

    Mostly Cloudy
    and Windy

  • Christmas Day

    Christmas Day: Snow. High near 30. Windy, with an east southeast wind 20 to 25 mph becoming south 10 to 15 mph in the afternoon. Winds could gust as high as 33 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    High: 30 °F

    Snow and
    Windy then
    Snow Likely
    and Breezy

  • Thursday Night

    Thursday Night: Snow likely, mainly between 10pm and 4am, then snow showers after 4am. Low around 25. Breezy, with a south wind around 16 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

    Low: 25 °F

    Snow Showers
    and Breezy

  • Friday

    Friday: Snow showers. The snow could be heavy at times. High near 26. Breezy, with a west southwest wind 15 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New snow accumulation of 5 to 9 inches possible.

    High: 26 °F

    Heavy Snow
    and Breezy

  • Friday Night

    Friday Night: Snow showers, mainly before 4am. The snow could be heavy at times. Low around 20. Windy. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

    Low: 20 °F

    Heavy Snow
    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 one 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 28.

    High: 28 °F

    Partly Sunny

Detailed Forecast

This Afternoon
A 50 percent chance of snow showers, mainly before 5pm. Mostly cloudy, with a high near 32. Windy, with a southwest wind 16 to 22 mph, with gusts as high as 32 mph. Total daytime snow accumulation of 3 to 5 inches possible.
Tonight
Mostly cloudy, with a low around 20. Windy, with a southwest wind 10 to 15 mph becoming east southeast 17 to 22 mph after midnight. Winds could gust as high as 29 mph.
Christmas Day
Snow. High near 30. Windy, with an east southeast wind 20 to 25 mph becoming south 10 to 15 mph in the afternoon. Winds could gust as high as 33 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Thursday Night
Snow likely, mainly between 10pm and 4am, then snow showers after 4am. Low around 25. Breezy, with a south wind around 16 mph, with gusts as high as 21 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. Breezy, with a west southwest wind 15 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New snow accumulation of 5 to 9 inches possible.
Friday Night
Snow showers, mainly before 4am. The snow could be heavy at times. Low around 20. Windy. 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 one inch possible.
Saturday Night
Mostly cloudy, with a low around 17.
Sunday
Partly sunny, with a high near 28.
Sunday Night
Mostly cloudy, with a low around 19. Blustery.
Monday
Partly sunny, with a high near 31. Blustery.
Monday Night
Partly cloudy, with a low around 22. Blustery.
Tuesday
Partly sunny, with a high near 33. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
Mount St Helens WA
 46.18°N 122.18°W (Elev. 6204 ft)
Last Update:
2:20 pm PST Dec 24, 2025
Forecast Valid:
2pm PST Dec 24, 2025-6pm PST Dec 30, 2025
 
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Additional Resources

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Chance of Precipitation