La Grande Reservoir Weather Forecast

    • 24
    • 41

    Mostly Sunny

    • 26
    • 40

    Mostly Sunny

    • 26
    • 40

    Partly Sunny

    • 26
    • 38

    Mostly Cloudy

    • 27
    • 37

    Chance Snow

    • 23
    • 33

    Chance Snow

Today 18 Jan Southern Blue Mountains of Oregon

Sunny. Highs in the 40s.

Tonight 18 Jan Southern Blue Mountains of Oregon

Mostly clear. Lows in the 20s.

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La Grande Reservoir Temperature Statistics

January Temperature

La Grande/Union County Airport (13.7 miles)

  • Lowest 16 January, 2026

    18 °F

  • Average January

    38.4 °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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