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

CANYON CREEK (CYFW1)

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

NA

38°F

3°C

Humidity 99%
Wind Speed ESE 12 MPH
Barometer NA
Dewpoint 38°F (3°C)
Visibility NA
Wind Chill30°F (-1°C)
Last update 25 Dec 05:52 AM PST
Extended Forecast for

8 Miles NNW 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

  • Christmas Day

    Christmas Day: Rain, mainly between 9am and 2pm. Snow level 5100 feet lowering to 4200 feet in the afternoon . High near 43. East southeast wind 5 to 8 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 43 °F

    Rain then
    Chance Rain

  • Tonight

    Tonight: Snow likely, possibly mixed with rain, mainly after 4am. Snow level 3600 feet lowering to 2900 feet after midnight . Mostly cloudy, with a low around 32. South southeast wind 3 to 5 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 32 °F

    Chance Rain
    then
    Rain/Snow
    Likely

  • Friday

    Friday: Snow showers likely, possibly mixed with rain before 10am, then snow showers. Temperature falling to around 30 by 5pm. Light and variable wind becoming west southwest 5 to 8 mph in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.

    High: 36 °F⇓

    Rain/Snow
    then Snow
    Showers

  • Friday Night

    Friday Night: Snow showers. Low around 26. West wind 6 to 8 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

    Low: 26 °F

    Snow Showers

  • Saturday

    Saturday: A 50 percent chance of snow showers. Patchy fog between 4pm and 5pm. Otherwise, mostly cloudy, with a high near 32. Calm wind. New snow accumulation of less than one inch possible.

    High: 32 °F

    Chance Snow
    Showers and
    Patchy Fog

  • Saturday Night

    Saturday Night: Patchy fog before 2am. Otherwise, mostly cloudy, with a low around 24.

    Low: 24 °F

    Patchy Fog

  • Sunday

    Sunday: Partly sunny, with a high near 37.

    High: 37 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 28.

    Low: 28 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 43.

    High: 43 °F

    Mostly Cloudy

Detailed Forecast

Christmas Day
Rain, mainly between 9am and 2pm. Snow level 5100 feet lowering to 4200 feet in the afternoon . High near 43. East southeast wind 5 to 8 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
Snow likely, possibly mixed with rain, mainly after 4am. Snow level 3600 feet lowering to 2900 feet after midnight . Mostly cloudy, with a low around 32. South southeast wind 3 to 5 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Friday
Snow showers likely, possibly mixed with rain before 10am, then snow showers. Temperature falling to around 30 by 5pm. Light and variable wind becoming west southwest 5 to 8 mph in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.
Friday Night
Snow showers. Low around 26. West wind 6 to 8 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
Saturday
A 50 percent chance of snow showers. Patchy fog between 4pm and 5pm. Otherwise, mostly cloudy, with a high near 32. Calm wind. New snow accumulation of less than one inch possible.
Saturday Night
Patchy fog before 2am. Otherwise, mostly cloudy, with a low around 24.
Sunday
Partly sunny, with a high near 37.
Sunday Night
Mostly cloudy, with a low around 28.
Monday
Mostly cloudy, with a high near 43.
Monday Night
Mostly cloudy, with a low around 31.
Tuesday
Mostly cloudy, with a high near 44.
Tuesday Night
A slight chance of rain. Mostly cloudy, with a low around 33.
Wednesday
A chance of rain. Mostly cloudy, with a high near 44.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles NNW Mount St Helens WA
 46.3°N 122.27°W (Elev. 2936 ft)
Last Update:
6:41 am PST Dec 25, 2025
Forecast Valid:
6am PST Dec 25, 2025-6pm PST Dec 31, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation