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

10 Miles WNW Mount St Helens WA

  • Overnight

    Overnight: Rain likely. Cloudy, with a low around 43. Calm wind. Chance of precipitation is 60%.

    Low: 43 °F

    Rain Likely

  • Friday

    Friday: Rain. High near 46. Light and variable wind. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 46 °F

    Rain

  • Friday Night

    Friday Night: Rain likely, mainly after 3am. Snow level 5800 feet lowering to 5200 feet after midnight . Mostly cloudy, with a steady temperature around 42. Calm wind becoming south around 6 mph after midnight. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 42 °F

    Rain Likely

  • Saturday

    Saturday: Rain. Snow level 5400 feet. High near 41. South southwest wind around 6 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 41 °F

    Rain

  • Saturday Night

    Saturday Night: Rain before 5am, then rain, possibly mixed with snow. Snow level 5900 feet lowering to 4500 feet after midnight . Low around 38. West southwest wind 5 to 9 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

    Low: 38 °F

    Rain then
    Rain/Snow

  • Sunday

    Sunday: Rain and snow. Some thunder is also possible. Snow level 4200 feet. High near 40. Chance of precipitation is 90%. Little or no snow accumulation expected.

    High: 40 °F

    Rain/Snow

  • Sunday Night

    Sunday Night: Rain and snow before 8pm, then snow between 8pm and 2am, then snow, possibly mixed with rain after 2am. Low around 37. Chance of precipitation is 90%. Little or no snow accumulation expected.

    Low: 37 °F

    Rain/Snow

  • Columbus Day

    Columbus Day: Rain and snow likely before 2pm, then a chance of rain. Snow level 4100 feet rising to 4900 feet in the afternoon. Partly sunny, with a high near 46.

    High: 46 °F

    Rain/Snow
    Likely

  • Monday Night

    Monday Night: A slight chance of rain before 11pm. Snow level 5200 feet. Mostly clear, with a low around 37.

    Low: 37 °F

    Slight Chance
    Rain then
    Mostly Clear

Detailed Forecast

Overnight
Rain likely. Cloudy, with a low around 43. Calm wind. Chance of precipitation is 60%.
Friday
Rain. High near 46. Light and variable wind. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
Rain likely, mainly after 3am. Snow level 5800 feet lowering to 5200 feet after midnight . Mostly cloudy, with a steady temperature around 42. Calm wind becoming south around 6 mph after midnight. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Rain. Snow level 5400 feet. High near 41. South southwest wind around 6 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday Night
Rain before 5am, then rain, possibly mixed with snow. Snow level 5900 feet lowering to 4500 feet after midnight . Low around 38. West southwest wind 5 to 9 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Sunday
Rain and snow. Some thunder is also possible. Snow level 4200 feet. High near 40. Chance of precipitation is 90%. Little or no snow accumulation expected.
Sunday Night
Rain and snow before 8pm, then snow between 8pm and 2am, then snow, possibly mixed with rain after 2am. Low around 37. Chance of precipitation is 90%. Little or no snow accumulation expected.
Columbus Day
Rain and snow likely before 2pm, then a chance of rain. Snow level 4100 feet rising to 4900 feet in the afternoon. Partly sunny, with a high near 46.
Monday Night
A slight chance of rain before 11pm. Snow level 5200 feet. Mostly clear, with a low around 37.
Tuesday
Sunny, with a high near 52.
Tuesday Night
Mostly clear, with a low around 39.
Wednesday
Sunny, with a high near 54.
Wednesday Night
Mostly clear, with a low around 40.
Thursday
Sunny, with a high near 52.
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ABOUT THIS FORECAST

 
Point Forecast:
10 Miles WNW Mount St Helens WA
 46.26°N 122.39°W (Elev. 3930 ft)
Last Update:
3:41 am PDT Oct 10, 2025
Forecast Valid:
4am PDT Oct 10, 2025-6pm PDT Oct 16, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation