Fall Creek Reservoir State Park Weather Forecast

    • 45
    • 67

    Increasing Clouds

    • 45
    • 64

    Chance Rain Showers

    • 43
    • 68

    Mostly Sunny

    • 48
    • 74

    Mostly Sunny

    • 53
    • 83

    Mostly Sunny

    • 51
    • 80

    Partly Sunny

    • 47
    • 70

    Chance Rain

Today 5 Sep Lane County Cascade Foothills

Sunny. Highs in the upper 60s. Winds light.

Tonight 5 Sep Lane County Cascade Foothills

Mostly cloudy. Patchy fog after midnight. Lows in the upper 40s. Winds light.

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Fall Creek Reservoir State Park Temperature Statistics

September Temperature

Eugene, Mahlon Sweet Field (26.1 miles)

  • Lowest 1 September, 2026

    53.7 °F

  • Average September

    58.7 °F

  • Highest 1 September, 2026

    68.6 °F

Climate (2021–2026)

Eugene, Mahlon Sweet Field (26.1 miles)

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  • Average Low 2021–2026

    43.8 °F

  • Average 2021–2026

    54.4 °F

  • Average High 2021–2026

    65.9 °F
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