Mount St Helens Weather Forecast

    • 40
    • 43

    Rain

    • 41
    • 44

    Mostly Cloudy

    • 35
    • 42

    Breezy

    • 32
    • 40

    Rain/Snow

    • 30
    • 34

    Snow

    • 27
    • 32

    Snow

Today 10 Nov South Washington Cascades

Rain, mainly this morning. Patchy fog. Snow level above 8000 feet. South wind 5 to 10 Mph. Chance of rain near 100 percent. Rainfall Amounts a tenth to a half of an inch.

Tonight 10 Nov South Washington Cascades

Mostly cloudy. A slight chance of rain in the evening. Patchy dense fog. Snow level 8000 feet. South wind 5 to 10 Mph. Chance of rain 20 percent.

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Mount St Helens Temperature Statistics

November Temperature

Southwest Washington Regional Airport (33.6 miles)

  • Lowest 4 November, 2026

    37.9 °F

  • Average November

    51 °F

  • Highest 7 November, 2026

    64 °F

Climate (2021–2026)

Southwest Washington Regional Airport (33.6 miles)

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  • Average Low 2021–2026

    45.2 °F

  • Average 2021–2026

    53.1 °F

  • Average High 2021–2026

    62.6 °F
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