La Grande Reservoir Weather Forecast

    • 46
    • 75

    Mostly Sunny

    • 30
    • 64

    Chance Rain/Snow

    • 27
    • 43

    Partly Sunny

    • 25
    • 40

    Partly Sunny

    • 30
    • 48

    Mostly Sunny

    • 34
    • 53

    Chance Rain Showers

Today 8 Oct Southern Blue Mountains of Oregon

Sunny. Highs in the mid 70s to lower 80s.

Tonight 8 Oct Southern Blue Mountains of Oregon

Mostly clear. Lows in the mid 40s to lower 50s.

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La Grande Reservoir Temperature Statistics

October Temperature

La Grande/Union County Airport (13.7 miles)

  • Lowest 3 October, 2026

    35.1 °F

  • Average October

    58.9 °F

  • Highest 4 October, 2026

    89.1 °F

Climate (2021–2026)

La Grande/Union County Airport (13.7 miles)

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  • Average Low 2021–2026

    38.3 °F

  • Average 2021–2026

    50.6 °F

  • Average High 2021–2026

    62.7 °F
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