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

  • This Afternoon

    This Afternoon: A slight chance of showers between 4pm and 5pm. Snow level 7100 feet. Mostly sunny, with a high near 43. West northwest wind 3 to 7 mph. Chance of precipitation is 20%.

    High: 43 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: Showers likely, mainly after 1am. Snow level 7100 feet rising to 7700 feet after midnight. Mostly cloudy, with a low around 39. Light west northwest wind increasing to 5 to 9 mph after midnight. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 39 °F

    Showers
    Likely

  • Saturday

    Saturday: Showers likely, mainly between 11am and 2pm. Snow level 7600 feet lowering to 7000 feet in the afternoon . Partly sunny, with a high near 41. Northwest wind 5 to 7 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 41 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A chance of rain showers, mixing with snow after 8pm, then gradually ending. Snow level 6600 feet. Partly cloudy, with a low around 36. North wind 3 to 8 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.

    Low: 36 °F

    Chance
    Rain/Snow
    then Partly
    Cloudy

  • Sunday

    Sunday: Sunny, with a high near 48. East southeast wind around 5 mph becoming calm in the morning.

    High: 48 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 39. Breezy.

    Low: 39 °F

    Mostly Clear
    then Clear
    and Breezy

  • Monday

    Monday: Sunny, with a high near 52. Breezy.

    High: 52 °F

    Sunny and
    Breezy then
    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 43. Windy.

    Low: 43 °F

    Clear and
    Windy

  • Tuesday

    Tuesday: Sunny, with a high near 54. Windy.

    High: 54 °F

    Sunny and
    Windy then
    Sunny

Detailed Forecast

This Afternoon
A slight chance of showers between 4pm and 5pm. Snow level 7100 feet. Mostly sunny, with a high near 43. West northwest wind 3 to 7 mph. Chance of precipitation is 20%.
Tonight
Showers likely, mainly after 1am. Snow level 7100 feet rising to 7700 feet after midnight. Mostly cloudy, with a low around 39. Light west northwest wind increasing to 5 to 9 mph after midnight. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Showers likely, mainly between 11am and 2pm. Snow level 7600 feet lowering to 7000 feet in the afternoon . Partly sunny, with a high near 41. Northwest wind 5 to 7 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
A chance of rain showers, mixing with snow after 8pm, then gradually ending. Snow level 6600 feet. Partly cloudy, with a low around 36. North wind 3 to 8 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.
Sunday
Sunny, with a high near 48. East southeast wind around 5 mph becoming calm in the morning.
Sunday Night
Clear, with a low around 39. Breezy.
Monday
Sunny, with a high near 52. Breezy.
Monday Night
Clear, with a low around 43. Windy.
Tuesday
Sunny, with a high near 54. Windy.
Tuesday Night
Mostly clear, with a low around 41.
Wednesday
A slight chance of rain and snow showers. Snow level 6500 feet. Mostly sunny, with a high near 47.
Wednesday Night
A chance of rain and snow showers. Snow level 6700 feet. Mostly cloudy, with a low around 40.
Thursday
A chance of rain and snow showers. Snow level 6800 feet. Partly sunny, with a high near 49.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mount St Helens WA
 46.18°N 122.18°W (Elev. 6204 ft)
Last Update:
2:00 pm PDT Oct 3, 2025
Forecast Valid:
2pm PDT Oct 3, 2025-6pm PDT Oct 9, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation