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

17 Miles S Mossyrock WA

  • This Afternoon

    This Afternoon: A 20 percent chance of showers before 5pm. Mostly sunny, with a high near 55. Light west wind.

    High: 55 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: Showers likely, mainly after 1am. Increasing clouds, with a low around 49. Light west wind. Chance of precipitation is 60%.

    Low: 49 °F

    Showers
    Likely

  • Saturday

    Saturday: Showers likely, mainly between 11am and 4pm. Mostly cloudy, with a high near 53. West northwest wind 3 to 5 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 53 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A 40 percent chance of showers before 11pm. Partly cloudy, with a low around 44. North northwest wind around 5 mph becoming calm.

    Low: 44 °F

    Chance
    Showers then
    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 58. Calm wind becoming north northwest 5 to 7 mph in the afternoon.

    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 63.

    High: 63 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 49.

    Low: 49 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of showers before 5pm. Mostly sunny, with a high near 55. Light west wind.
Tonight
Showers likely, mainly after 1am. Increasing clouds, with a low around 49. Light west wind. Chance of precipitation is 60%.
Saturday
Showers likely, mainly between 11am and 4pm. Mostly cloudy, with a high near 53. West northwest wind 3 to 5 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
A 40 percent chance of showers before 11pm. Partly cloudy, with a low around 44. North northwest wind around 5 mph becoming calm.
Sunday
Sunny, with a high near 58. Calm wind becoming north northwest 5 to 7 mph in the afternoon.
Sunday Night
Clear, with a low around 46.
Monday
Sunny, with a high near 63.
Monday Night
Clear, with a low around 49.
Tuesday
Sunny, with a high near 65.
Tuesday Night
Mostly clear, with a low around 48.
Wednesday
A slight chance of showers. Mostly sunny, with a high near 58.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 48.
Thursday
A chance of showers. Partly sunny, with a high near 59.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
17 Miles S Mossyrock WA
 46.28°N 122.55°W (Elev. 2382 ft)
Last Update:
3:20 pm PDT Oct 3, 2025
Forecast Valid:
3pm PDT Oct 3, 2025-6pm PDT Oct 9, 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