Hilgard Junction State Park Weather Forecast

    • 39
    • 66

    Decreasing Clouds

    • 40
    • 74

    Increasing Clouds

    • 41
    • 74

    Rain Showers Likely

    • 41
    • 76

    Mostly Sunny

    • 43
    • 80

    Mostly Sunny

    • 44
    • 83

    Mostly Sunny

    • 42
    • 82

    Partly Sunny

Today 15 Sep Northern Blue Mountains of Oregon

Partly cloudy. Highs in the mid 60s to lower 70s.

Tonight 15 Sep Northern Blue Mountains of Oregon

Mostly cloudy. Lows in the lower to mid 40s.

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Hilgard Junction State Park Temperature Statistics

September Temperature

La Grande/Union County Airport (10.6 miles)

  • Lowest 4 September, 2026

    39 °F

  • Average September

    58.5 °F

  • Highest 10 September, 2026

    89.1 °F

Climate (2021–2026)

La Grande/Union County Airport (10.6 miles)

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  • Average Low 2021–2026

    38.3 °F

  • Average 2021–2026

    50.5 °F

  • Average High 2021–2026

    62.7 °F
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