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

38°F

3°C

Humidity 96%
Wind Speed ESE 11 MPH
Barometer NA
Dewpoint 37°F (3°C)
Visibility NA
Wind Chill31°F (-1°C)
Last update 24 Dec 04:52 AM PST
Extended Forecast for

Mount St Helens WA

  • Overnight

    Overnight: Rain and snow likely. Snow level 6400 feet. Mostly cloudy, with a steady temperature around 31. Windy, with a southeast wind around 28 mph, with gusts as high as 38 mph. Chance of precipitation is 70%. Total nighttime snow accumulation of around an inch possible.

    Low: 31 °F

    Rain/Snow
    Likely and
    Windy

  • Wednesday

    Wednesday: Rain and snow, becoming all snow after 8am. The snow could be heavy at times. Temperature falling to around 28 by 3pm. Very windy, with a southeast wind 26 to 31 mph becoming south 32 to 37 mph in the afternoon. Winds could gust as high as 60 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

    High: 32 °F⇓

    Very Windy.
    Rain/Snow
    then Heavy
    Snow

  • Wednesday Night

    Wednesday Night: Snow likely after 4am. Increasing clouds, with a low around 24. Windy, with a southwest wind 13 to 22 mph becoming east in the evening. Winds could gust as high as 29 mph. Chance of precipitation is 60%. New snow accumulation of around an inch possible.

    Low: 24 °F

    Decreasing
    Clouds and
    Breezy then
    Snow Likely
    and Windy

  • Christmas Day

    Christmas Day: Snow. High near 30. Windy, with an east wind 14 to 24 mph becoming south southeast in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    High: 30 °F

    Snow and
    Windy

  • Thursday Night

    Thursday Night: Snow likely. Mostly cloudy, with a low around 23. East northeast wind around 14 mph becoming south after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    Low: 23 °F

    Snow Likely

  • Friday

    Friday: Snow showers. High near 26. Breezy. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

    High: 26 °F

    Snow Showers
    and Breezy

  • Friday Night

    Friday Night: Snow showers likely, mainly before 10pm. Mostly cloudy, with a low around 23. Windy. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

    Low: 23 °F

    Snow Showers
    Likely and
    Windy

  • Saturday

    Saturday: A chance of snow showers before 10am. Mostly cloudy, with a high near 25.

    High: 25 °F

    Chance Snow
    Showers then
    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 19.

    Low: 19 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Rain and snow likely. Snow level 6400 feet. Mostly cloudy, with a steady temperature around 31. Windy, with a southeast wind around 28 mph, with gusts as high as 38 mph. Chance of precipitation is 70%. Total nighttime snow accumulation of around an inch possible.
Wednesday
Rain and snow, becoming all snow after 8am. The snow could be heavy at times. Temperature falling to around 28 by 3pm. Very windy, with a southeast wind 26 to 31 mph becoming south 32 to 37 mph in the afternoon. Winds could gust as high as 60 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.
Wednesday Night
Snow likely after 4am. Increasing clouds, with a low around 24. Windy, with a southwest wind 13 to 22 mph becoming east in the evening. Winds could gust as high as 29 mph. Chance of precipitation is 60%. New snow accumulation of around an inch possible.
Christmas Day
Snow. High near 30. Windy, with an east wind 14 to 24 mph becoming south southeast in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Thursday Night
Snow likely. Mostly cloudy, with a low around 23. East northeast wind around 14 mph becoming south after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Friday
Snow showers. High near 26. Breezy. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
Friday Night
Snow showers likely, mainly before 10pm. Mostly cloudy, with a low around 23. Windy. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.
Saturday
A chance of snow showers before 10am. Mostly cloudy, with a high near 25.
Saturday Night
Mostly cloudy, with a low around 19.
Sunday
Mostly cloudy, with a high near 30.
Sunday Night
Mostly cloudy, with a low around 22. Blustery.
Monday
Partly sunny, with a high near 34. Breezy.
Monday Night
Mostly cloudy, with a low around 25. Blustery.
Tuesday
A slight chance of rain and snow. Snow level 6600 feet. Partly sunny, with a high near 35. 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:
4:55 am PST Dec 24, 2025
Forecast Valid:
5am PST Dec 24, 2025-6pm PST Dec 30, 2025
 
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