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

64°F

18°C

Humidity 77%
Wind Speed NW 0 MPH
Barometer NA
Dewpoint 57°F (14°C)
Visibility NA
Last update 20 Sep 07:00 PM PDT
Extended Forecast for

Mount St Helens WA

  • Overnight

    Overnight: Rain, mainly after 4am. Steady temperature around 49. Southwest wind 8 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 49 °F

    Rain

  • Sunday

    Sunday: Rain, mainly before 9am. Snow level 10400 feet lowering to 6400 feet in the afternoon . High near 47. West northwest wind 7 to 11 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 47 °F

    Rain then
    Chance Rain

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 40. West northwest wind 5 to 10 mph.

    Low: 40 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 58. North northwest wind 5 to 7 mph becoming calm in the morning.

    High: 58 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 49. Light and variable wind becoming east 8 to 13 mph after midnight.

    Low: 49 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 67.

    High: 67 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

  • Wednesday Night

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

    Low: 47 °F

    Mostly Clear

Detailed Forecast

Overnight
Rain, mainly after 4am. Steady temperature around 49. Southwest wind 8 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
Rain, mainly before 9am. Snow level 10400 feet lowering to 6400 feet in the afternoon . High near 47. West northwest wind 7 to 11 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
Mostly clear, with a low around 40. West northwest wind 5 to 10 mph.
Monday
Sunny, with a high near 58. North northwest wind 5 to 7 mph becoming calm in the morning.
Monday Night
Clear, with a low around 49. Light and variable wind becoming east 8 to 13 mph after midnight.
Tuesday
Sunny, with a high near 67.
Tuesday Night
Mostly clear, with a low around 54.
Wednesday
Sunny, with a high near 65.
Wednesday Night
Mostly clear, with a low around 47.
Thursday
Sunny, with a high near 58.
Thursday Night
Mostly clear, with a low around 47.
Friday
Mostly sunny, with a high near 58.
Friday Night
A slight chance of rain. Partly cloudy, with a low around 48.
Saturday
A chance of rain. Mostly sunny, with a high near 57.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mount St Helens WA
 46.21°N 122.15°W (Elev. 5259 ft)
Last Update:
11:41 pm PDT Sep 20, 2025
Forecast Valid:
12am PDT Sep 21, 2025-6pm PDT Sep 27, 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