La Grande Reservoir Weather Forecast

    • 22
    • 38

    Mostly Sunny

    • 17
    • 33

    Partly Sunny

    • 14
    • 26

    Mostly Sunny

    • 17
    • 31

    Mostly Sunny

    • 22
    • 34

    Partly Sunny

    • 24
    • 35

    Partly Sunny

Today 21 Jan Southern Blue Mountains of Oregon

Mostly sunny. Highs in the upper 30s to lower 40s.

Tonight 21 Jan Southern Blue Mountains of Oregon

Mostly clear. Lows in the lower to mid 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

    36.5 °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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