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

Mount St Helens WA

  • This Afternoon

    This Afternoon: Rain. High near 46. South southwest wind around 6 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 46 °F

    Rain

  • Tonight

    Tonight: Rain likely, possibly mixing with snow after midnight, then gradually ending. Snow level 7800 feet lowering to 6000 feet after midnight . Mostly cloudy, with a low around 37. Southwest wind 5 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 37 °F

    Rain Likely
    then Slight
    Chance
    Rain/Snow

  • Tuesday

    Tuesday: A chance of rain and snow between 1pm and 3pm, then rain. The rain could be heavy at times. Snow level rising to 6900 feet in the afternoon. Steady temperature around 39. Breezy, with a south wind 14 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 39 °F

    Breezy.
    Partly Sunny
    then
    Rain/Snow

  • Tuesday Night

    Tuesday Night: Rain. The rain could be heavy at times. Snow level 7300 feet lowering to 6700 feet after midnight . Low around 38. Breezy, with a south wind 13 to 18 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

    Low: 38 °F

    Heavy Rain
    and Breezy

  • Wednesday

    Wednesday: Rain, possibly mixed with snow showers. Some thunder is also possible. Snow level 6600 feet. High near 42. Breezy, with a south wind 10 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

    High: 42 °F

    Rain/Snow and
    Breezy

  • Wednesday Night

    Wednesday Night: Rain, possibly mixed with snow. Snow level 6600 feet. Low around 38. Breezy. Chance of precipitation is 80%. Little or no snow accumulation expected.

    Low: 38 °F

    Rain/Snow and
    Breezy

  • Thursday

    Thursday: Rain, possibly mixed with snow showers, becoming all rain after 2pm. Some thunder is also possible. Snow level 6700 feet. High near 42. Breezy. Chance of precipitation is 90%. Little or no snow accumulation expected.

    High: 42 °F

    Rain/Snow and
    Breezy

  • Thursday Night

    Thursday Night: A chance of rain before 11pm. Snow level 6900 feet. Mostly cloudy, with a low around 38.

    Low: 38 °F

    Chance Rain
    then Mostly
    Cloudy

  • Friday

    Friday: A slight chance of rain. Snow level 6900 feet. Mostly sunny, with a high near 44.

    High: 44 °F

    Slight Chance
    Rain

Detailed Forecast

This Afternoon
Rain. High near 46. South southwest wind around 6 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Tonight
Rain likely, possibly mixing with snow after midnight, then gradually ending. Snow level 7800 feet lowering to 6000 feet after midnight . Mostly cloudy, with a low around 37. Southwest wind 5 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Tuesday
A chance of rain and snow between 1pm and 3pm, then rain. The rain could be heavy at times. Snow level rising to 6900 feet in the afternoon. Steady temperature around 39. Breezy, with a south wind 14 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Tuesday Night
Rain. The rain could be heavy at times. Snow level 7300 feet lowering to 6700 feet after midnight . Low around 38. Breezy, with a south wind 13 to 18 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Wednesday
Rain, possibly mixed with snow showers. Some thunder is also possible. Snow level 6600 feet. High near 42. Breezy, with a south wind 10 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Wednesday Night
Rain, possibly mixed with snow. Snow level 6600 feet. Low around 38. Breezy. Chance of precipitation is 80%. Little or no snow accumulation expected.
Thursday
Rain, possibly mixed with snow showers, becoming all rain after 2pm. Some thunder is also possible. Snow level 6700 feet. High near 42. Breezy. Chance of precipitation is 90%. Little or no snow accumulation expected.
Thursday Night
A chance of rain before 11pm. Snow level 6900 feet. Mostly cloudy, with a low around 38.
Friday
A slight chance of rain. Snow level 6900 feet. Mostly sunny, with a high near 44.
Friday Night
A chance of rain, mainly after 11pm. Snow level 7500 feet. Mostly cloudy, with a low around 40.
Saturday
A chance of rain and snow. Snow level 7100 feet lowering to 6600 feet. Partly sunny, with a high near 41.
Saturday Night
A slight chance of rain and snow. Snow level 6800 feet lowering to 6100 feet after midnight . Mostly cloudy, with a low around 38.
Sunday
Mostly sunny, with a high near 47.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mount St Helens WA
 46.2°N 122.18°W (Elev. 5997 ft)
Last Update:
2:06 pm PDT Sep 29, 2025
Forecast Valid:
2pm PDT Sep 29, 2025-6pm PDT Oct 5, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation