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

57°F

14°C

Humidity 73%
Wind Speed E 0 MPH
Barometer NA
Dewpoint 48°F (9°C)
Visibility NA
Last update 29 Sep 12:00 AM PDT
Extended Forecast for

Mount St Helens WA

  • This Afternoon

    This Afternoon: Snow showers likely, possibly mixed with rain, mainly after 5pm. Some thunder is also possible. Snow level 7000 feet. Mostly cloudy, with a high near 40. South southwest wind around 10 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

    High: 40 °F

    Rain/Snow
    Likely

  • Tonight

    Tonight: A chance of rain and snow showers before 4am, then a slight chance of snow showers after 5am. Mostly cloudy, with a low around 37. Breezy, with a south southwest wind 10 to 15 mph, with gusts as high as 18 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

    Low: 37 °F

    Chance
    Rain/Snow
    then Slight
    Chance Snow
    Showers and
    Breezy

  • Thursday

    Thursday: A chance of snow showers before 5pm, then a chance of rain and snow showers. Mostly cloudy, with a high near 40. South wind 9 to 14 mph becoming light south southwest in the afternoon. Chance of precipitation is 50%. Little or no snow accumulation expected.

    High: 40 °F

    Chance Snow
    Showers then
    Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: A chance of rain and snow showers before 8pm, then a chance of snow showers between 8pm and 11pm. Partly cloudy, with a low around 37. Calm wind becoming north around 6 mph after midnight. Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 37 °F

    Chance
    Rain/Snow
    then Partly
    Cloudy

  • Friday

    Friday: A slight chance of snow showers after 11am, mixing with rain after 2pm. Mostly sunny, with a high near 43. North wind 5 to 7 mph becoming west northwest in the morning. Chance of precipitation is 20%.

    High: 43 °F

    Slight Chance
    Snow Showers
    then Slight
    Chance
    Rain/Snow

  • Friday Night

    Friday Night: A slight chance of rain and snow showers before 8pm, then a slight chance of rain showers. Snow level 7100 feet. Mostly cloudy, with a low around 39. Chance of precipitation is 20%.

    Low: 39 °F

    Slight Chance
    Rain/Snow
    then Slight
    Chance
    Showers

  • Saturday

    Saturday: A chance of rain and snow showers, mainly after 11am. Snow level 6900 feet. Partly sunny, with a high near 41. Chance of precipitation is 30%. Little or no snow accumulation expected.

    High: 41 °F

    Chance
    Rain/Snow

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 37.

    Low: 37 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 49.

    High: 49 °F

    Sunny

Detailed Forecast

This Afternoon
Snow showers likely, possibly mixed with rain, mainly after 5pm. Some thunder is also possible. Snow level 7000 feet. Mostly cloudy, with a high near 40. South southwest wind around 10 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Tonight
A chance of rain and snow showers before 4am, then a slight chance of snow showers after 5am. Mostly cloudy, with a low around 37. Breezy, with a south southwest wind 10 to 15 mph, with gusts as high as 18 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Thursday
A chance of snow showers before 5pm, then a chance of rain and snow showers. Mostly cloudy, with a high near 40. South wind 9 to 14 mph becoming light south southwest in the afternoon. Chance of precipitation is 50%. Little or no snow accumulation expected.
Thursday Night
A chance of rain and snow showers before 8pm, then a chance of snow showers between 8pm and 11pm. Partly cloudy, with a low around 37. Calm wind becoming north around 6 mph after midnight. Chance of precipitation is 30%. Little or no snow accumulation expected.
Friday
A slight chance of snow showers after 11am, mixing with rain after 2pm. Mostly sunny, with a high near 43. North wind 5 to 7 mph becoming west northwest in the morning. Chance of precipitation is 20%.
Friday Night
A slight chance of rain and snow showers before 8pm, then a slight chance of rain showers. Snow level 7100 feet. Mostly cloudy, with a low around 39. Chance of precipitation is 20%.
Saturday
A chance of rain and snow showers, mainly after 11am. Snow level 6900 feet. Partly sunny, with a high near 41. Chance of precipitation is 30%. Little or no snow accumulation expected.
Saturday Night
Partly cloudy, with a low around 37.
Sunday
Sunny, with a high near 49.
Sunday Night
Clear, with a low around 39. Breezy.
Monday
Sunny, with a high near 51. Breezy.
Monday Night
Clear, with a low around 42. Breezy.
Tuesday
Sunny, with a high near 54. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
Mount St Helens WA
 46.2°N 122.21°W (Elev. 6598 ft)
Last Update:
3:41 pm PDT Oct 1, 2025
Forecast Valid:
3pm PDT Oct 1, 2025-6pm PDT Oct 7, 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