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

63°F

17°C

Humidity 76%
Wind Speed WSW 0 MPH
Barometer NA
Dewpoint 56°F (13°C)
Visibility NA
Last update 03 Aug 11:00 AM PDT
Extended Forecast for

Mount St Helens WA

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 51. West wind around 10 mph.

    High: 51 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 43. Northwest wind 7 to 10 mph.

    Low: 43 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 49. North wind 7 to 9 mph becoming west in the morning.

    High: 49 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 45. North wind 6 to 10 mph.

    Low: 45 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 53. North wind 5 to 7 mph becoming south southwest in the morning.

    High: 53 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of rain after 11pm. Mostly cloudy, with a low around 48.

    Low: 48 °F

    Slight Chance
    Rain

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after 11am. Mostly cloudy, with a high near 51. Chance of precipitation is 40%.

    High: 51 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 46.

    Low: 46 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of showers. Partly sunny, with a high near 49.

    High: 49 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Partly sunny, with a high near 51. West wind around 10 mph.
Tonight
Mostly cloudy, with a low around 43. Northwest wind 7 to 10 mph.
Monday
Mostly sunny, with a high near 49. North wind 7 to 9 mph becoming west in the morning.
Monday Night
Mostly cloudy, with a low around 45. North wind 6 to 10 mph.
Tuesday
Mostly sunny, with a high near 53. North wind 5 to 7 mph becoming south southwest in the morning.
Tuesday Night
A 20 percent chance of rain after 11pm. Mostly cloudy, with a low around 48.
Wednesday
A chance of showers, with thunderstorms also possible after 11am. Mostly cloudy, with a high near 51. Chance of precipitation is 40%.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 46.
Thursday
A chance of showers. Partly sunny, with a high near 49.
Thursday Night
A slight chance of showers before 11pm. Mostly cloudy, with a low around 47.
Friday
Mostly sunny, with a high near 53.
Friday Night
Mostly clear, with a low around 49.
Saturday
Sunny, with a high near 62.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mount St Helens WA
 46.2°N 122.21°W (Elev. 6598 ft)
Last Update:
11:41 am PDT Aug 3, 2025
Forecast Valid:
12pm PDT Aug 3, 2025-6pm PDT Aug 9, 2025
 
Forecast Discussion
 
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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