La Grande Reservoir Weather Forecast

    • 28
    • 36

    Partly Sunny

    • 31
    • 43

    Partly Sunny

    • 30
    • 44

    Partly Sunny

    • 27
    • 46

    Mostly Sunny

    • 25
    • 44

    Mostly Sunny

    • 26
    • 40

    Sunny

Today 11 Jan Southern Blue Mountains of Oregon

Partly sunny. Highs in the 40s.

Tonight 11 Jan Southern Blue Mountains of Oregon

Partly cloudy. Lows in the upper 20s to mid 30s. Gusts up to 20 Mph overnight.

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La Grande Reservoir Temperature Statistics

January Temperature

La Grande/Union County Airport (13.7 miles)

  • Lowest 8 January, 2026

    30 °F

  • Average January

    40.6 °F

  • Highest 3 January, 2026

    54 °F

Climate (2021–Present)

La Grande/Union County Airport (13.7 miles)

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  • Average Low 2021–2026

    38.2 °F

  • Average 2021–2026

    50.5 °F

  • Average High 2021–2026

    62.6 °F
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