Cascadia State Park Weather Forecast

    • 52
    • 78

    Mostly Sunny

    • 52
    • 75

    Mostly Sunny

    • 52
    • 79

    Mostly Sunny

    • 54
    • 78

    Partly Sunny

    • 54
    • 74

    Mostly Sunny

    • 57
    • 81

    Mostly Sunny

Today 17 Sep Cascade Foothills of Marion and Linn Counties

Sunny. Highs in the upper 70s. Winds light.

Tonight 17 Sep Cascade Foothills of Marion and Linn Counties

Mostly clear in the Evening, then becoming partly cloudy. Lows in the lower 50s. Winds light.

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Cascadia State Park Temperature Statistics

September Temperature

Corvallis, Corvallis Municipal Airport (40.4 miles)

  • Lowest 13 September, 2025

    46 °F

  • Average September

    65.5 °F

  • Highest 4 September, 2025

    93 °F

Climate (2020–Present)

Corvallis, Corvallis Municipal Airport (40.4 miles)

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  • Average Low 2020–2025

    43.4 °F

  • Average 2020–2025

    53 °F

  • Average High 2020–2025

    63.9 °F
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