Significant and Catastrophic Flooding in the Pacific Northwest; Very Cold Temperatures in the Northern Plains

The atmospheric river over the Pacific Northwest will begin to subside today, but lingering rainfall will exacerbate ongoing catastrophic major river flooding, and landslides will continue across portions of western Washington and northwest Oregon for several days. Arctic air will plummet southward into the Northern Plains today, bringing cold air in the single digits to the region by Friday. Read More >

Current conditions at

CANYON CREEK (CYFW1)

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

NA

48°F

9°C

Humidity 93%
Wind Speed SE 5 MPH
Barometer NA
Dewpoint 46°F (8°C)
Visibility NA
Wind Chill46°F (8°C)
Last update 11 Dec 10:52 AM PST
Extended Forecast for

Mount St Helens WA

  • Today

    Today: Showers.  High near 39. West wind 6 to 10 mph.  Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 39 °F

    Showers

  • Tonight

    Tonight: Rain showers likely before 5am, then a chance of rain and snow showers.  Snow level 8700 feet lowering to 7400 feet after midnight . Cloudy, with a low around 37. West southwest wind around 7 mph.  Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 37 °F

    Showers
    Likely then
    Chance
    Rain/Snow

  • Friday

    Friday: A slight chance of rain and snow showers before 8am, then a chance of snow showers after 10am.  Mostly cloudy, with a high near 40. West wind around 6 mph.  Chance of precipitation is 40%. Little or no snow accumulation expected.

    High: 40 °F

    Chance
    Rain/Snow
    then Chance
    Snow Showers

  • Friday Night

    Friday Night: A 20 percent chance of snow showers before 10pm.  Mostly cloudy, with a low around 32. West southwest wind 6 to 9 mph becoming south southeast after midnight.

    Low: 32 °F

    Slight Chance
    Snow Showers
    then Partly
    Cloudy

  • Saturday

    Saturday: Sunny, with a high near 44. East wind 6 to 14 mph becoming south in the afternoon.

    High: 44 °F

    Sunny

  • Saturday Night

    Saturday Night: Snow, mainly after 4am.  Low around 34. Breezy.  Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 34 °F

    Breezy.
    Chance Snow
    then Snow

  • Sunday

    Sunday: Snow, possibly mixed with rain, becoming all snow after 1pm.  High near 37. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    High: 37 °F

    Rain/Snow

  • Sunday Night

    Sunday Night: Rain likely, possibly mixed with snow.  Snow level 6700 feet rising to 7400 feet after midnight. Mostly cloudy, with a low around 35. Breezy.

    Low: 35 °F

    Rain/Snow
    Likely and
    Breezy

  • Monday

    Monday: Rain, possibly mixed with snow before 7am, then rain between 7am and 4pm, then rain and snow after 4pm.  Snow level 8100 feet. Cloudy, with a high near 38. Windy.

    High: 38 °F

    Rain/Snow and
    Windy

Detailed Forecast

Today
Showers. High near 39. West wind 6 to 10 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Tonight
Rain showers likely before 5am, then a chance of rain and snow showers. Snow level 8700 feet lowering to 7400 feet after midnight . Cloudy, with a low around 37. West southwest wind around 7 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Friday
A slight chance of rain and snow showers before 8am, then a chance of snow showers after 10am. Mostly cloudy, with a high near 40. West wind around 6 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Friday Night
A 20 percent chance of snow showers before 10pm. Mostly cloudy, with a low around 32. West southwest wind 6 to 9 mph becoming south southeast after midnight.
Saturday
Sunny, with a high near 44. East wind 6 to 14 mph becoming south in the afternoon.
Saturday Night
Snow, mainly after 4am. Low around 34. Breezy. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Sunday
Snow, possibly mixed with rain, becoming all snow after 1pm. High near 37. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Sunday Night
Rain likely, possibly mixed with snow. Snow level 6700 feet rising to 7400 feet after midnight. Mostly cloudy, with a low around 35. Breezy.
Monday
Rain, possibly mixed with snow before 7am, then rain between 7am and 4pm, then rain and snow after 4pm. Snow level 8100 feet. Cloudy, with a high near 38. Windy.
Monday Night
Snow. The snow could be heavy at times. Cloudy, with a low around 30. Windy.
Tuesday
Snow. The snow could be heavy at times. Cloudy, with a high near 32. Windy.
Tuesday Night
Snow. The snow could be heavy at times. Cloudy, with a low around 27. Very windy.
Wednesday
Snow. The snow could be heavy at times. Cloudy, with a high near 29. Windy.
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ABOUT THIS FORECAST

 
Point Forecast:
Mount St Helens WA
 46.2°N 122.21°W (Elev. 6598 ft)
10:41 am PST Dec 11, 2025
11am PST Dec 11, 2025-6pm PST Dec 17, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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