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

  • Tonight

    Tonight: Mostly clear, with a steady temperature around 40. Calm wind.

    Low: 40 °F

    Mostly Clear

  • Thursday

    Thursday: Increasing clouds, with a high near 48. Calm wind becoming west southwest around 5 mph in the afternoon.

    High: 48 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: Rain likely, mainly after 11pm. Mostly cloudy, with a low around 41. Light west northwest wind. Chance of precipitation is 60%.

    Low: 41 °F

    Rain Likely

  • Friday

    Friday: A 50 percent chance of rain, mainly before 11am. Partly sunny, with a high near 47. West wind 3 to 7 mph.

    High: 47 °F

    Chance Rain
    then Slight
    Chance Rain

  • Friday Night

    Friday Night: Partly cloudy, with a low around 39. West northwest wind around 6 mph becoming calm in the evening.

    Low: 39 °F

    Partly Cloudy

  • Saturday

    Saturday: A 30 percent chance of rain after 11am. Partly sunny, with a high near 53.

    High: 53 °F

    Chance Rain

  • Saturday Night

    Saturday Night: Rain. Low around 42. Chance of precipitation is 100%.

    Low: 42 °F

    Rain

  • Sunday

    Sunday: Rain. Cloudy, with a high near 43.

    High: 43 °F

    Rain

  • Sunday Night

    Sunday Night: Showers. Mostly cloudy, with a low around 40.

    Low: 40 °F

    Showers

Detailed Forecast

Tonight
Mostly clear, with a steady temperature around 40. Calm wind.
Thursday
Increasing clouds, with a high near 48. Calm wind becoming west southwest around 5 mph in the afternoon.
Thursday Night
Rain likely, mainly after 11pm. Mostly cloudy, with a low around 41. Light west northwest wind. Chance of precipitation is 60%.
Friday
A 50 percent chance of rain, mainly before 11am. Partly sunny, with a high near 47. West wind 3 to 7 mph.
Friday Night
Partly cloudy, with a low around 39. West northwest wind around 6 mph becoming calm in the evening.
Saturday
A 30 percent chance of rain after 11am. Partly sunny, with a high near 53.
Saturday Night
Rain. Low around 42. Chance of precipitation is 100%.
Sunday
Rain. Cloudy, with a high near 43.
Sunday Night
Showers. Mostly cloudy, with a low around 40.
Monday
A chance of showers. Snow level 4900 feet. Partly sunny, with a high near 45.
Monday Night
A slight chance of showers. Mostly cloudy, with a low around 40.
Tuesday
A chance of showers. Mostly cloudy, with a high near 46.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 40.
Wednesday
A chance of showers. Partly sunny, with a high near 49.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S Mount St Helens WA
 46.14°N 122.17°W (Elev. 2710 ft)
Last Update:
10:46 pm PDT Oct 15, 2025
Forecast Valid:
10pm PDT Oct 15, 2025-6pm PDT Oct 22, 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