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

  • Tonight

    Tonight: A 30 percent chance of rain, mainly after 3am. Snow level 9400 feet lowering to 8100 feet after midnight . Mostly cloudy, with a low around 36. Northwest wind 3 to 6 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 36 °F

    Chance Rain

  • Friday

    Friday: Rain and snow likely before 11am, then a slight chance of snow between 11am and noon. Mostly cloudy, then gradually becoming sunny, with a high near 39. West northwest wind around 8 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 39 °F

    Rain/Snow
    Likely then
    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 31. Northwest wind 3 to 7 mph.

    Low: 31 °F

    Mostly Clear

  • Saturday

    Saturday: A chance of rain and snow between 11am and 2pm, then a chance of rain after 2pm. Snow level rising to 10400 feet in the afternoon. Increasing clouds, with a high near 41. West wind 5 to 10 mph becoming light and variable in the afternoon. Chance of precipitation is 30%. Little or no snow accumulation expected.

    High: 41 °F

    Chance
    Rain/Snow

  • Saturday Night

    Saturday Night: Rain before 2am, then rain and snow. Snow level 10400 feet lowering to 6700 feet after midnight . Low around 33. Breezy, with a light south southwest wind increasing to 11 to 16 mph in the evening. Winds could gust as high as 23 mph. Chance of precipitation is 100%. New snow accumulation of less than one inch possible.

    Low: 33 °F

    Breezy. Rain
    then
    Rain/Snow

  • Sunday

    Sunday: Snow before 11am, then snow showers after 11am. Some thunder is also possible. High near 37. Breezy. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.

    High: 37 °F

    Snow and
    Breezy

  • Sunday Night

    Sunday Night: Snow. Low around 32. Chance of precipitation is 90%. New snow accumulation of around an inch possible.

    Low: 32 °F

    Snow then
    Snow Likely

  • Monday

    Monday: A chance of snow before 11am. Partly sunny, with a high near 36.

    High: 36 °F

    Chance Snow
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 33.

    Low: 33 °F

    Partly Cloudy

Detailed Forecast

Tonight
A 30 percent chance of rain, mainly after 3am. Snow level 9400 feet lowering to 8100 feet after midnight . Mostly cloudy, with a low around 36. Northwest wind 3 to 6 mph. New precipitation amounts of less than a tenth of an inch possible.
Friday
Rain and snow likely before 11am, then a slight chance of snow between 11am and noon. Mostly cloudy, then gradually becoming sunny, with a high near 39. West northwest wind around 8 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Friday Night
Mostly clear, with a low around 31. Northwest wind 3 to 7 mph.
Saturday
A chance of rain and snow between 11am and 2pm, then a chance of rain after 2pm. Snow level rising to 10400 feet in the afternoon. Increasing clouds, with a high near 41. West wind 5 to 10 mph becoming light and variable in the afternoon. Chance of precipitation is 30%. Little or no snow accumulation expected.
Saturday Night
Rain before 2am, then rain and snow. Snow level 10400 feet lowering to 6700 feet after midnight . Low around 33. Breezy, with a light south southwest wind increasing to 11 to 16 mph in the evening. Winds could gust as high as 23 mph. Chance of precipitation is 100%. New snow accumulation of less than one inch possible.
Sunday
Snow before 11am, then snow showers after 11am. Some thunder is also possible. High near 37. Breezy. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.
Sunday Night
Snow. Low around 32. Chance of precipitation is 90%. New snow accumulation of around an inch possible.
Monday
A chance of snow before 11am. Partly sunny, with a high near 36.
Monday Night
Partly cloudy, with a low around 33.
Tuesday
A chance of snow. Partly sunny, with a high near 37.
Tuesday Night
A chance of snow. Mostly cloudy, with a low around 32.
Wednesday
A slight chance of rain and snow. Partly sunny, with a high near 42.
Wednesday Night
A chance of rain and snow. Snow level 6800 feet. Mostly cloudy, with a low around 36.
Thursday
A chance of rain and snow. Snow level 7200 feet. Partly sunny, with a high near 42.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mount St Helens WA
 46.18°N 122.18°W (Elev. 6204 ft)
Last Update:
6:41 pm PDT Oct 16, 2025
Forecast Valid:
7pm PDT Oct 16, 2025-6pm PDT Oct 23, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation