Blachly Mountain Forest State Park Weather Forecast

    • 51
    • 77

    Increasing Clouds

    • 48
    • 79

    Chance Rain Showers

    • 45
    • 69

    Chance Rain Showers

    • 45
    • 70

    Partly Sunny

    • 42
    • 66

    Partly Sunny

    • 42
    • 65

    Partly Sunny

Today 11 May Central Oregon Coast Range

Sunny. Highs in the upper 70s. Northeast wind 5 to 10 Mph.

Tonight 11 May Central Oregon Coast Range

Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the lower 50s. Winds light.

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Blachly Mountain Forest State Park Temperature Statistics

May Temperature

Eugene, Mahlon Sweet Field (14.3 miles)

  • Lowest 9 May, 2026

    37 °F

  • Average May

    59.8 °F

  • Highest 3 May, 2026

    83.6 °F

Climate (2021–Present)

Eugene, Mahlon Sweet Field (14.3 miles)

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  • Average Low 2021–2026

    44.1 °F

  • Average 2021–2026

    54.6 °F

  • Average High 2021–2026

    66.1 °F
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