Mount St Helens Weather Forecast

    • 52
    • 70

    Sunny

    • 55
    • 71

    Smoke

    • 55
    • 76

    Smoke

    • 53
    • 76

    Smoke

    • 49
    • 71

    Partly Sunny

    • 46
    • 63

    Partly Sunny

    • 47
    • 63

    Mostly Sunny

Today 18 Aug South Washington Cascades

Clear. Free air freezing level 15000 feet. Northeast wind 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mount St Helens Temperature Statistics

August Temperature

Kelso, Kelso-Longview Airport (33.6 miles)

  • Lowest 4 August, 2018

    53.1 °F
  • Average August

    67.7 °F
  • Highest 14 August, 2018

    93 °F

Climate (2010–Present)

Kelso, Kelso-Longview Airport (33.6 miles)

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  • Average Low 2010–Present

    45 °F
  • Average 2010–Present

    53.1 °F
  • Average High 2010–Present

    62.5 °F
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