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

  • Overnight

    Overnight: Clear, with a low around 35. North northwest wind around 6 mph.

    Low: 35 °F

    Clear

  • Thursday

    Thursday: Increasing clouds, with a high near 41. West northwest wind 3 to 6 mph.

    High: 41 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: Rain likely before 5am, then a chance of rain and snow. Snow level 9100 feet lowering to 7600 feet after midnight . Mostly cloudy, with a low around 36. West northwest wind 5 to 7 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 36 °F

    Rain Likely
    then
    Rain/Snow
    Likely

  • Friday

    Friday: A chance of rain and snow before 8am, then a chance of snow. Partly sunny, with a high near 37. West wind 8 to 10 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.

    High: 37 °F

    Chance
    Rain/Snow
    then Slight
    Chance Snow

  • Friday Night

    Friday Night: Partly cloudy, with a low around 32. North wind 5 to 7 mph.

    Low: 32 °F

    Partly Cloudy

  • Saturday

    Saturday: A chance of rain and snow between 11am and 2pm, then a chance of rain after 2pm. Snow level 7100 feet rising to 9800 feet in the afternoon. Partly sunny, with a high near 43. Chance of precipitation is 30%. Little or no snow accumulation expected.

    High: 43 °F

    Chance
    Rain/Snow

  • Saturday Night

    Saturday Night: Rain before 11pm, then snow, possibly mixed with rain. The snow could be heavy at times. Snow level 10400 feet lowering to 6900 feet after midnight . Low around 34. Breezy. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.

    Low: 34 °F

    Rain/Snow and
    Breezy

  • Sunday

    Sunday: Snow. The snow could be heavy at times. Cloudy, with a high near 37. Breezy.

    High: 37 °F

    Heavy Snow
    and Breezy

  • Sunday Night

    Sunday Night: Snow showers. The snow could be heavy at times. Mostly cloudy, with a low around 32.

    Low: 32 °F

    Heavy Snow

Detailed Forecast

Overnight
Clear, with a low around 35. North northwest wind around 6 mph.
Thursday
Increasing clouds, with a high near 41. West northwest wind 3 to 6 mph.
Thursday Night
Rain likely before 5am, then a chance of rain and snow. Snow level 9100 feet lowering to 7600 feet after midnight . Mostly cloudy, with a low around 36. West northwest wind 5 to 7 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Friday
A chance of rain and snow before 8am, then a chance of snow. Partly sunny, with a high near 37. West wind 8 to 10 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.
Friday Night
Partly cloudy, with a low around 32. North wind 5 to 7 mph.
Saturday
A chance of rain and snow between 11am and 2pm, then a chance of rain after 2pm. Snow level 7100 feet rising to 9800 feet in the afternoon. Partly sunny, with a high near 43. Chance of precipitation is 30%. Little or no snow accumulation expected.
Saturday Night
Rain before 11pm, then snow, possibly mixed with rain. The snow could be heavy at times. Snow level 10400 feet lowering to 6900 feet after midnight . Low around 34. Breezy. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.
Sunday
Snow. The snow could be heavy at times. Cloudy, with a high near 37. Breezy.
Sunday Night
Snow showers. The snow could be heavy at times. Mostly cloudy, with a low around 32.
Monday
A chance of snow showers. Partly sunny, with a high near 35.
Monday Night
A slight chance of snow showers. Mostly cloudy, with a low around 33.
Tuesday
A chance of snow showers. Mostly cloudy, with a high near 36.
Tuesday Night
A chance of snow showers. Mostly cloudy, with a low around 33.
Wednesday
A chance of rain and snow showers. Snow level rising to 6400 feet in the afternoon. Partly sunny, with a high near 40.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mount St Helens WA
 46.2°N 122.18°W (Elev. 5997 ft)
Last Update:
12:41 am PDT Oct 16, 2025
Forecast Valid:
12am PDT Oct 16, 2025-6pm PDT Oct 22, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation