Blachly Mountain Forest State Park Weather Forecast

    • 41
    • 70

    Becoming Sunny

    • 46
    • 72

    Partly Sunny

    • 46
    • 74

    Mostly Sunny

    • 48
    • 79

    Mostly Sunny

    • 46
    • 77

    Mostly Sunny

    • 46
    • 76

    Partly Sunny

Today 18 May Central Oregon Coast Range

Mostly sunny. Highs in the upper 60s. North wind 5 to 10 Mph.

Tonight 18 May Central Oregon Coast Range

Mostly clear. Lows in the lower 40s. North wind 5 to 10 Mph.

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Blachly Mountain Forest State Park Temperature Statistics

May Temperature

Eugene, Mahlon Sweet Field (14.3 miles)

  • Lowest 9 May, 2026

    37.7 °F

  • Average May

    58.9 °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

    54.5 °F

  • Average High 2021–2026

    66 °F
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