7-Day Forecast 46.2°N 122.18°W (Text-Only)
NWS Forecast for: Mount St Helens WA
Issued by: National Weather Service Portland, OR
Last Update: 12:41 am PDT Jul 16, 2025
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  • Overnight

    Overnight: Clear, with a low around 53. Breezy, with an east southeast wind 13 to 15 mph, with gusts as high as 20 mph.

    Low: 53 °F

    Clear and
    Breezy


  • Wednesday

    Wednesday: Widespread haze between 8am and 10am. Sunny, with a high near 67. Southeast wind 5 to 13 mph becoming northwest in the afternoon.

    High: 67 °F

    Haze then
    Sunny


  • Wednesday
    Night

    Wednesday Night: Mostly clear, with a low around 51. West wind 6 to 9 mph.

    Low: 51 °F

    Mostly Clear



  • Thursday

    Thursday: Sunny, with a high near 63. West wind 6 to 10 mph.

    High: 63 °F

    Sunny



  • Thursday
    Night

    Thursday Night: Mostly clear, with a low around 50. Northwest wind 6 to 11 mph.

    Low: 50 °F

    Mostly Clear



  • Friday

    Friday: Sunny, with a high near 62.

    High: 62 °F

    Sunny



  • Friday
    Night

    Friday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy



  • Saturday

    Saturday: Mostly sunny, with a high near 53.

    High: 53 °F

    Mostly Sunny



  • Saturday
    Night

    Saturday Night: Partly cloudy, with a low around 45. Breezy.

    Low: 45 °F

    Partly Cloudy
    and Breezy
    then Partly
    Cloudy

  • Overnight: Clear, with a low around 53. Breezy, with an east southeast wind 13 to 15 mph, with gusts as high as 20 mph.

    Wednesday: Widespread haze between 8am and 10am. Sunny, with a high near 67. Southeast wind 5 to 13 mph becoming northwest in the afternoon.

    Wednesday Night: Mostly clear, with a low around 51. West wind 6 to 9 mph.

    Thursday: Sunny, with a high near 63. West wind 6 to 10 mph.

    Thursday Night: Mostly clear, with a low around 50. Northwest wind 6 to 11 mph.

    Friday: Sunny, with a high near 62.

    Friday Night: Partly cloudy, with a low around 46.

    Saturday: Mostly sunny, with a high near 53.

    Saturday Night: Partly cloudy, with a low around 45. Breezy.

    Sunday: Mostly sunny, with a high near 53.

    Sunday Night: Partly cloudy, with a low around 46.

    Monday: Mostly sunny, with a high near 54.

    Monday Night: Partly cloudy, with a low around 46.

    Tuesday: Mostly sunny, with a high near 56.



    Mount St Helens WA
     46.2°N 122.18°W (Elev. 5997 ft)

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