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

Mount St Helens WA

  • This Afternoon

    This Afternoon: Sunny, with a high near 41. Calm wind.

    High: 41 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 35. Calm wind becoming northwest around 6 mph after midnight.

    Low: 35 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 40. West wind 3 to 6 mph.

    High: 40 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Showers likely, mainly between 11pm and 5am. Snow level 8600 feet lowering to 7000 feet after midnight . Mostly cloudy, with a low around 35. West northwest wind 3 to 7 mph. Chance of precipitation is 70%.

    Low: 35 °F

    Showers
    Likely

  • Friday

    Friday: A chance of rain and snow showers before 8am, then a chance of snow showers. Partly sunny, with a high near 37. West wind 6 to 9 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.

    High: 37 °F

    Chance
    Rain/Snow
    then Slight
    Chance Snow
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 33.

    Low: 33 °F

    Partly Cloudy

  • Saturday

    Saturday: A 30 percent chance of rain after 11am. Snow level 7500 feet rising to 10600 feet in the afternoon. Partly sunny, with a high near 42.

    High: 42 °F

    Chance Rain

  • Saturday Night

    Saturday Night: Rain likely before 11pm, then snow, possibly mixed with rain. Snow level 10500 feet lowering to 6600 feet after midnight . Cloudy, with a low around 32. Breezy.

    Low: 32 °F

    Rain/Snow and
    Breezy

  • Sunday

    Sunday: Snow. The snow could be heavy at times. Cloudy, with a high near 37. Breezy.

    High: 37 °F

    Heavy Snow
    and Breezy

Detailed Forecast

This Afternoon
Sunny, with a high near 41. Calm wind.
Tonight
Mostly clear, with a low around 35. Calm wind becoming northwest around 6 mph after midnight.
Thursday
Mostly sunny, with a high near 40. West wind 3 to 6 mph.
Thursday Night
Showers likely, mainly between 11pm and 5am. Snow level 8600 feet lowering to 7000 feet after midnight . Mostly cloudy, with a low around 35. West northwest wind 3 to 7 mph. Chance of precipitation is 70%.
Friday
A chance of rain and snow showers before 8am, then a chance of snow showers. Partly sunny, with a high near 37. West wind 6 to 9 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.
Friday Night
Partly cloudy, with a low around 33.
Saturday
A 30 percent chance of rain after 11am. Snow level 7500 feet rising to 10600 feet in the afternoon. Partly sunny, with a high near 42.
Saturday Night
Rain likely before 11pm, then snow, possibly mixed with rain. Snow level 10500 feet lowering to 6600 feet after midnight . Cloudy, with a low around 32. Breezy.
Sunday
Snow. The snow could be heavy at times. Cloudy, with a high near 37. Breezy.
Sunday Night
Snow. Mostly cloudy, with a low around 31.
Monday
A chance of snow. Partly sunny, with a high near 33.
Monday Night
A chance of snow. Mostly cloudy, with a low around 32.
Tuesday
A chance of snow. Partly sunny, with a high near 35.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mount St Helens WA
 46.18°N 122.18°W (Elev. 6204 ft)
Last Update:
11:41 am PDT Oct 15, 2025
Forecast Valid:
12pm PDT Oct 15, 2025-6pm PDT Oct 21, 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