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 88%
Wind Speed ENE 0 MPH
Barometer NA
Dewpoint 54°F (12°C)
Visibility NA
Last update 19 Sep 09:00 PM PDT
Extended Forecast for

Mount St Helens WA

  • Overnight

    Overnight: Clear, with a steady temperature around 52. Southwest wind around 6 mph.

    Low: 52 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 58. West southwest wind around 6 mph.

    High: 58 °F

    Sunny

  • Saturday Night

    Saturday Night: Rain, mainly after 4am. Low around 41. Light west southwest wind becoming southwest 5 to 10 mph after midnight. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 41 °F

    Partly Cloudy
    then Rain

  • Sunday

    Sunday: Rain, mainly before 10am. Snow level 10400 feet lowering to 6800 feet in the afternoon . High near 45. West wind 7 to 11 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 45 °F

    Rain then
    Rain Likely

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 38. West northwest wind 5 to 7 mph.

    Low: 38 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 55.

    High: 55 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 47.

    Low: 47 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

Detailed Forecast

Overnight
Clear, with a steady temperature around 52. Southwest wind around 6 mph.
Saturday
Sunny, with a high near 58. West southwest wind around 6 mph.
Saturday Night
Rain, mainly after 4am. Low around 41. Light west southwest wind becoming southwest 5 to 10 mph after midnight. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
Rain, mainly before 10am. Snow level 10400 feet lowering to 6800 feet in the afternoon . High near 45. West wind 7 to 11 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Sunday Night
Mostly clear, with a low around 38. West northwest wind 5 to 7 mph.
Monday
Sunny, with a high near 55.
Monday Night
Clear, with a low around 47.
Tuesday
Sunny, with a high near 65.
Tuesday Night
Mostly clear, with a low around 50.
Wednesday
Sunny, with a high near 59.
Wednesday Night
Partly cloudy, with a low around 44.
Thursday
Sunny, with a high near 52.
Thursday Night
Partly cloudy, with a low around 45.
Friday
A slight chance of rain. Mostly sunny, with a high near 53.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mount St Helens WA
 46.2°N 122.18°W (Elev. 5997 ft)
Last Update:
3:41 am PDT Sep 20, 2025
Forecast Valid:
3am PDT Sep 20, 2025-6pm PDT Sep 26, 2025
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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