La Grande Reservoir Weather Forecast

    • 31
    • 57

    Rain Showers

    • 25
    • 41

    Partly Sunny

    • 30
    • 50

    Mostly Sunny

    • 31
    • 52

    Partly Sunny

    • 30
    • 49

    Chance Rain/Snow

    • 29
    • 48

    Chance Rain/Snow

Today 22 Oct Southern Blue Mountains of Oregon

Partly sunny with a chance of rain Showers in the Morning, then rain Showers and a chance of Thunderstorms in the afternoon. Highs in the mid 50s to lower 60s. Chance of precipitation 90 percent. Rainfall Amounts less than a quarter of an Inch, except higher Amounts possible in Thunderstorms.

Tonight 22 Oct Southern Blue Mountains of Oregon

Rain Showers and a chance of Thunderstorms in the Evening, then a chance of rain and high mountain snow Showers overnight. No high mountain snow accumulation. Lows in the lower to mid 30s. West wind 5 to 15 Mph overnight. Gusts up to 30 Mph. Chance of precipitation near 100 percent.

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La Grande Reservoir Temperature Statistics

October Temperature

La Grande/Union County Airport (13.7 miles)

  • Lowest 13 October, 2026

    21 °F

  • Average October

    53.2 °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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