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

68°F

20°C

Humidity 84%
Wind Speed NNE 0 MPH
Barometer NA
Dewpoint 63°F (17°C)
Visibility NA
Last update 30 Aug 07:00 PM PDT
Extended Forecast for

Mount St Helens WA

  • Tonight

    Tonight: Partly cloudy, with a low around 50. Northeast wind around 6 mph becoming south southwest after midnight.

    Low: 50 °F

    Partly Cloudy

  • Labor Day

    Labor Day: Areas of smoke between 2pm and 4pm. Mostly sunny, with a high near 58. Light and variable wind becoming south southwest around 6 mph in the afternoon.

    High: 58 °F

    Areas Smoke

  • Monday Night

    Monday Night: Areas of smoke. Partly cloudy, with a low around 52. West wind 5 to 8 mph becoming northeast after midnight.

    Low: 52 °F

    Areas Smoke

  • Tuesday

    Tuesday: Sunny, with a high near 67. Northeast wind 5 to 9 mph becoming calm in the morning.

    High: 67 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 59. West northwest wind 5 to 9 mph becoming north northeast in the evening.

    Low: 59 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 66.

    High: 66 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 63.

    High: 63 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 50. Northeast wind around 6 mph becoming south southwest after midnight.
Labor Day
Areas of smoke between 2pm and 4pm. Mostly sunny, with a high near 58. Light and variable wind becoming south southwest around 6 mph in the afternoon.
Monday Night
Areas of smoke. Partly cloudy, with a low around 52. West wind 5 to 8 mph becoming northeast after midnight.
Tuesday
Sunny, with a high near 67. Northeast wind 5 to 9 mph becoming calm in the morning.
Tuesday Night
Mostly clear, with a low around 59. West northwest wind 5 to 9 mph becoming north northeast in the evening.
Wednesday
Mostly sunny, with a high near 66.
Wednesday Night
Partly cloudy, with a low around 56.
Thursday
Mostly sunny, with a high near 63.
Thursday Night
Partly cloudy, with a low around 55.
Friday
Partly sunny, with a high near 59.
Friday Night
Mostly cloudy, with a low around 53.
Saturday
Partly sunny, with a high near 56.
Saturday Night
Mostly cloudy, with a low around 50.
Sunday
Partly sunny, with a high near 52.
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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:
6:41 pm PDT Aug 31, 2025
Forecast Valid:
7pm PDT Aug 31, 2025-6pm PDT Sep 7, 2025
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation