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

11 Miles S Mossyrock WA

  • Tonight

    Tonight: Showers likely, mainly after 1am. Patchy fog after 4am. Otherwise, increasing clouds, with a low around 49. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.

    Low: 49 °F

    Showers
    Likely and
    Patchy Fog

  • Saturday

    Saturday: Showers likely, mainly between 10am and 3pm. Mostly cloudy, with a high near 55. West northwest wind 3 to 5 mph. Chance of precipitation is 60%.

    High: 55 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A 30 percent chance of showers before 11pm. Patchy fog between 11pm and 1am. Otherwise, partly cloudy, with a low around 43. Light and variable wind.

    Low: 43 °F

    Chance
    Showers and
    Patchy Fog
    then Patchy
    Fog

  • Sunday

    Sunday: Sunny, with a high near 60. Calm wind becoming north northeast around 5 mph in the afternoon.

    High: 60 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 44. North northeast wind around 6 mph becoming east after midnight.

    Low: 44 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 48.

    Low: 48 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear

Detailed Forecast

Tonight
Showers likely, mainly after 1am. Patchy fog after 4am. Otherwise, increasing clouds, with a low around 49. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.
Saturday
Showers likely, mainly between 10am and 3pm. Mostly cloudy, with a high near 55. West northwest wind 3 to 5 mph. Chance of precipitation is 60%.
Saturday Night
A 30 percent chance of showers before 11pm. Patchy fog between 11pm and 1am. Otherwise, partly cloudy, with a low around 43. Light and variable wind.
Sunday
Sunny, with a high near 60. Calm wind becoming north northeast around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 44. North northeast wind around 6 mph becoming east after midnight.
Monday
Sunny, with a high near 66.
Monday Night
Clear, with a low around 48.
Tuesday
Sunny, with a high near 68.
Tuesday Night
Mostly clear, with a low around 47.
Wednesday
A slight chance of showers after 11am. Mostly sunny, with a high near 61.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 48.
Thursday
A chance of showers. Partly sunny, with a high near 62.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 47.
Friday
A chance of showers. Partly sunny, with a high near 57.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
11 Miles S Mossyrock WA
 46.37°N 122.52°W (Elev. 1959 ft)
Last Update:
4:46 pm PDT Oct 3, 2025
Forecast Valid:
5pm PDT Oct 3, 2025-6pm PDT Oct 10, 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