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

3 Miles S Mount St Helens WA

  • Today

    Today: A 40 percent chance of showers after 2pm. Mostly cloudy, with a high near 50. South wind around 5 mph becoming calm in the afternoon.

    High: 50 °F

    Chance
    Showers

  • Tonight

    Tonight: A 30 percent chance of showers, mainly before 8pm. Partly cloudy, with a low around 43. Calm wind.

    Low: 43 °F

    Chance
    Showers then
    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 52. Calm wind becoming west around 6 mph in the afternoon.

    High: 52 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 20 percent chance of rain. Mostly cloudy, with a low around 46. West northwest wind around 6 mph becoming calm in the evening.

    Low: 46 °F

    Slight Chance
    Rain

  • Saturday

    Saturday: A chance of rain, mainly between 11am and 2pm, then a chance of showers after 2pm. Partly sunny, with a high near 50. Calm wind becoming west northwest around 5 mph in the afternoon. Chance of precipitation is 30%.

    High: 50 °F

    Chance Rain

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 43.

    Low: 43 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 58.

    High: 58 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 46.

    Low: 46 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 60.

    High: 60 °F

    Sunny

Detailed Forecast

Today
A 40 percent chance of showers after 2pm. Mostly cloudy, with a high near 50. South wind around 5 mph becoming calm in the afternoon.
Tonight
A 30 percent chance of showers, mainly before 8pm. Partly cloudy, with a low around 43. Calm wind.
Friday
Mostly sunny, with a high near 52. Calm wind becoming west around 6 mph in the afternoon.
Friday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 46. West northwest wind around 6 mph becoming calm in the evening.
Saturday
A chance of rain, mainly between 11am and 2pm, then a chance of showers after 2pm. Partly sunny, with a high near 50. Calm wind becoming west northwest around 5 mph in the afternoon. Chance of precipitation is 30%.
Saturday Night
Partly cloudy, with a low around 43.
Sunday
Sunny, with a high near 58.
Sunday Night
Clear, with a low around 46.
Monday
Sunny, with a high near 60.
Monday Night
Clear, with a low around 48.
Tuesday
Sunny, with a high near 63.
Tuesday Night
Clear, with a low around 47.
Wednesday
Sunny, with a high near 58.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S Mount St Helens WA
 46.14°N 122.2°W (Elev. 2956 ft)
Last Update:
6:41 am PDT Oct 2, 2025
Forecast Valid:
7am PDT Oct 2, 2025-6pm PDT Oct 8, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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