Blachly Mountain Forest State Park Weather Forecast

    • 46
    • 71

    Increasing Clouds

    • 45
    • 74

    Mostly Sunny

    • 41
    • 64

    Partly Sunny

    • 38
    • 60

    Partly Sunny

    • 41
    • 58

    Chance Rain

    • 41
    • 59

    Chance Rain

Today 20 Oct Central Oregon Coast Range

Sunny. Highs around 70. Winds light.

Tonight 20 Oct Central Oregon Coast Range

Partly cloudy in the Evening, then clearing. Lows in the upper 40s. Light and variable Winds.

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Blachly Mountain Forest State Park Temperature Statistics

October Temperature

Eugene, Mahlon Sweet Field (14.3 miles)

  • Lowest 11 October, 2026

    30.7 °F

  • Average October

    57.5 °F

  • Highest 4 October, 2026

    81.6 °F

Climate (2021–2026)

Eugene, Mahlon Sweet Field (14.3 miles)

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  • Average Low 2021–2026

    43.8 °F

  • Average 2021–2026

    54.4 °F

  • Average High 2021–2026

    66 °F
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