La Grande Reservoir Weather Forecast

    • 38
    • 61

    Mostly Sunny

    • 39
    • 60

    Partly Sunny

    • 32
    • 60

    Partly Sunny

    • 35
    • 57

    Partly Sunny

    • 32
    • 50

    Slight Chance Rain/Snow

    • 31
    • 44

    Slight Chance Rain/Snow

Today 15 Oct Southern Blue Mountains of Oregon

Sunny. Areas of frost in the morning. Highs in the mid 60s to lower 70s.

Tonight 15 Oct Southern Blue Mountains of Oregon

Mostly clear. Lows in the upper 30s to mid 40s. Southeast wind 5 to 15 Mph with Gusts to around 30 Mph overnight.

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La Grande Reservoir Temperature Statistics

October Temperature

La Grande/Union County Airport (13.7 miles)

  • Lowest 12 October, 2026

    30.9 °F

  • Average October

    54 °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

    62.8 °F
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