National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Mt. St. Helens - Coldwater (MSH33)

Lat: 46.30333°NLon: 122.26503°WElev: 3260.0ft.

NA

N/A

Humidity 73%
Wind Speed E 0 MPH
Barometer NA
Dewpoint N/A
Visibility NA
Last update 29 Sep 12:00 AM PDT
Extended Forecast for

Mount St Helens WA

  • Today

    Today: Mostly sunny, with a high near 41. West wind 3 to 6 mph.

    High: 41 °F

    Mostly Sunny

  • Tonight

    Tonight: Rain and snow likely, mainly between 1am and 4am. Snow level 6500 feet rising to 7300 feet after midnight. Mostly cloudy, with a low around 36. Calm wind becoming south 5 to 7 mph after midnight. Chance of precipitation is 70%. Little or no snow accumulation expected.

    Low: 36 °F

    Chance
    Rain/Snow
    then
    Rain/Snow
    Likely

  • Thursday

    Thursday: Rain and snow likely, mainly before 11am. Snow level 6700 feet rising to 7600 feet in the afternoon. Mostly cloudy, with a high near 43. South wind 5 to 7 mph becoming calm in the morning. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 43 °F

    Rain/Snow
    Likely then
    Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: Rain, mainly after 11pm. Snow level 7900 feet lowering to 7000 feet after midnight . Low around 39. Calm wind becoming west 5 to 7 mph after midnight. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 39 °F

    Rain

  • Friday

    Friday: Rain and snow before 11am, then snow between 11am and 2pm, then snow, possibly mixed with rain after 2pm. Snow level 6600 feet lowering to 6000 feet. High near 40. West wind 5 to 9 mph becoming light southwest in the morning. Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 40 °F

    Rain/Snow

  • Friday Night

    Friday Night: Snow likely, possibly mixed with rain before 8pm, then snow. Low around 34. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 34 °F

    Rain/Snow
    then Snow

  • Saturday

    Saturday: Snow. High near 36. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.

    High: 36 °F

    Snow

  • Saturday Night

    Saturday Night: Snow. Cloudy, with a low around 31.

    Low: 31 °F

    Snow

  • Sunday

    Sunday: Snow. Cloudy, with a high near 33.

    High: 33 °F

    Snow

Detailed Forecast

Today
Mostly sunny, with a high near 41. West wind 3 to 6 mph.
Tonight
Rain and snow likely, mainly between 1am and 4am. Snow level 6500 feet rising to 7300 feet after midnight. Mostly cloudy, with a low around 36. Calm wind becoming south 5 to 7 mph after midnight. Chance of precipitation is 70%. Little or no snow accumulation expected.
Thursday
Rain and snow likely, mainly before 11am. Snow level 6700 feet rising to 7600 feet in the afternoon. Mostly cloudy, with a high near 43. South wind 5 to 7 mph becoming calm in the morning. Chance of precipitation is 60%. Little or no snow accumulation expected.
Thursday Night
Rain, mainly after 11pm. Snow level 7900 feet lowering to 7000 feet after midnight . Low around 39. Calm wind becoming west 5 to 7 mph after midnight. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Rain and snow before 11am, then snow between 11am and 2pm, then snow, possibly mixed with rain after 2pm. Snow level 6600 feet lowering to 6000 feet. High near 40. West wind 5 to 9 mph becoming light southwest in the morning. Chance of precipitation is 80%. Little or no snow accumulation expected.
Friday Night
Snow likely, possibly mixed with rain before 8pm, then snow. Low around 34. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Saturday
Snow. High near 36. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.
Saturday Night
Snow. Cloudy, with a low around 31.
Sunday
Snow. Cloudy, with a high near 33.
Sunday Night
Snow likely. Mostly cloudy, with a low around 30.
Columbus Day
Snow likely. Partly sunny, with a high near 36.
Monday Night
A chance of snow. Partly cloudy, with a low around 33.
Tuesday
A chance of snow. Partly sunny, with a high near 38.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mount St Helens WA
 46.2°N 122.18°W (Elev. 5997 ft)
Last Update:
9:20 am PDT Oct 8, 2025
Forecast Valid:
9am PDT Oct 8, 2025-6pm PDT Oct 14, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation