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 73%
Wind Speed E 0 MPH
Barometer NA
Dewpoint 48°F (9°C)
Visibility NA
Last update 29 Sep 12:00 AM PDT
Extended Forecast for

3 Miles S Mount St Helens WA

  • This Afternoon

    This Afternoon: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5pm. Mostly cloudy, with a high near 48. South wind around 6 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 48 °F

    Showers
    Likely

  • Tonight

    Tonight: A chance of showers before 4am, then a slight chance of showers after 5am. Mostly cloudy, with a low around 45. South wind around 7 mph. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 45 °F

    Chance
    Showers

  • Thursday

    Thursday: A slight chance of showers before 10am, then a chance of showers after 11am. Mostly cloudy, with a steady temperature around 47. South wind around 6 mph becoming calm in the afternoon. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 47 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Thursday Night

    Thursday Night: A 30 percent chance of showers before 11pm. Partly cloudy, with a low around 43. Calm wind.

    Low: 43 °F

    Chance
    Showers then
    Partly Cloudy

  • Friday

    Friday: A 20 percent chance of showers after 11am. Mostly sunny, with a high near 52. Calm wind becoming west northwest around 6 mph in the afternoon.

    High: 52 °F

    Slight Chance
    Showers

  • Friday Night

    Friday Night: A 20 percent chance of showers. Mostly cloudy, with a low around 45.

    Low: 45 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: A 30 percent chance of showers, mainly after 11am. Partly sunny, with a high near 50.

    High: 50 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 43.

    Low: 43 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 57.

    High: 57 °F

    Sunny

Detailed Forecast

This Afternoon
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5pm. Mostly cloudy, with a high near 48. South wind around 6 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A chance of showers before 4am, then a slight chance of showers after 5am. Mostly cloudy, with a low around 45. South wind around 7 mph. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
A slight chance of showers before 10am, then a chance of showers after 11am. Mostly cloudy, with a steady temperature around 47. South wind around 6 mph becoming calm in the afternoon. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
A 30 percent chance of showers before 11pm. Partly cloudy, with a low around 43. Calm wind.
Friday
A 20 percent chance of showers after 11am. Mostly sunny, with a high near 52. Calm wind becoming west northwest around 6 mph in the afternoon.
Friday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 45.
Saturday
A 30 percent chance of showers, mainly after 11am. Partly sunny, with a high near 50.
Saturday Night
Partly cloudy, with a low around 43.
Sunday
Sunny, with a high near 57.
Sunday Night
Clear, with a low around 44.
Monday
Sunny, with a high near 60.
Monday Night
Clear, with a low around 47.
Tuesday
Sunny, with a high near 63.
Tuesday Night
Mostly clear, with a low around 47.
Wednesday
Sunny, with a high near 59.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S Mount St Helens WA
 46.14°N 122.2°W (Elev. 2956 ft)
Last Update:
3:41 pm PDT Oct 1, 2025
Forecast Valid:
4pm PDT Oct 1, 2025-6pm PDT Oct 8, 2025
 
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Additional Resources

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High Temperature

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Chance of Precipitation