National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
7-Day Forecast 46.18°N 122.18°W (Text-Only)
NWS Forecast for: Mount St Helens WA
Issued by: National Weather Service Portland, OR
Last Update: 7:41 pm PDT Apr 14, 2026		Print

  • Tonight

    Tonight: Snow. The snow could be heavy at times. Low around 19. Very windy, with a southwest wind 26 to 31 mph becoming west northwest 16 to 21 mph after midnight. Winds could gust as high as 43 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 15 to 21 inches possible.

    Low: 19 °F

    Heavy Snow
    and Very
    Windy


  • Wednesday

    Wednesday: A chance of snow before 9am, then snow showers, mainly after 11am. The snow could be heavy at times. Some thunder is also possible. High near 24. Windy, with a west wind 14 to 24 mph, with gusts as high as 32 mph. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.

    High: 24 °F

    Heavy Snow
    and Blustery
    then Heavy
    Snow and
    Windy

  • Wednesday
    Night

    Wednesday Night: Snow showers, mainly before 11pm. Some thunder is also possible. Steady temperature around 22. Breezy, with a west wind 16 to 21 mph decreasing to 10 to 15 mph in the evening. Winds could gust as high as 30 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

    Low: 22 °F

    Snow Showers
    and Breezy
    then Chance
    Snow Showers

  • Thursday

    Thursday: A 50 percent chance of snow showers, mainly after 11am. Partly sunny, with a high near 30. Breezy, with a west wind 9 to 18 mph, with gusts as high as 26 mph. New snow accumulation of less than one inch possible.

    High: 30 °F

    Chance Snow
    Showers and
    Breezy


  • Thursday
    Night

    Thursday Night: A 40 percent chance of snow showers before 11pm. Mostly cloudy, with a low around 24. Breezy, with a west wind 16 to 21 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 29 mph. New snow accumulation of less than a half inch possible.

    Low: 24 °F

    Chance Snow
    Showers and
    Breezy then
    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 36.

    High: 36 °F

    Partly Sunny




  • Friday
    Night

    Friday Night: Mostly cloudy, with a low around 27.

    Low: 27 °F

    Mostly Cloudy




  • Saturday

    Saturday: A chance of snow after 11am. Partly sunny, with a high near 42.

    High: 42 °F

    Chance Snow




  • Saturday
    Night

    Saturday Night: Snow likely. Mostly cloudy, with a low around 33. Breezy.

    Low: 33 °F

    Snow Likely
    and Breezy





    • Tonight: Snow. The snow could be heavy at times. Low around 19. Very windy, with a southwest wind 26 to 31 mph becoming west northwest 16 to 21 mph after midnight. Winds could gust as high as 43 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 15 to 21 inches possible.

    Wednesday: A chance of snow before 9am, then snow showers, mainly after 11am. The snow could be heavy at times. Some thunder is also possible. High near 24. Windy, with a west wind 14 to 24 mph, with gusts as high as 32 mph. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.

    Wednesday Night: Snow showers, mainly before 11pm. Some thunder is also possible. Steady temperature around 22. Breezy, with a west wind 16 to 21 mph decreasing to 10 to 15 mph in the evening. Winds could gust as high as 30 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

    Thursday: A 50 percent chance of snow showers, mainly after 11am. Partly sunny, with a high near 30. Breezy, with a west wind 9 to 18 mph, with gusts as high as 26 mph. New snow accumulation of less than one inch possible.

    Thursday Night: A 40 percent chance of snow showers before 11pm. Mostly cloudy, with a low around 24. Breezy, with a west wind 16 to 21 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 29 mph. New snow accumulation of less than a half inch possible.

    Friday: Partly sunny, with a high near 36.

    Friday Night: Mostly cloudy, with a low around 27.

    Saturday: A chance of snow after 11am. Partly sunny, with a high near 42.

    Saturday Night: Snow likely. Mostly cloudy, with a low around 33. Breezy.

    Sunday: Snow likely. Mostly cloudy, with a high near 40. Breezy.

    Sunday Night: Snow likely. Mostly cloudy, with a low around 31. Breezy.

    Monday: Snow likely. Mostly cloudy, with a high near 39. Breezy.

    Monday Night: A chance of snow. Mostly cloudy, with a low around 31. Blustery.

    Tuesday: A chance of snow. Partly sunny, with a high near 38. Breezy.


    Mount St Helens WA
     46.18°N 122.18°W (Elev. 6204 ft)

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