La Grande/Union County Airport Weather Forecast

    • 37
    • 66

    Mostly Sunny

    • 41
    • 69

    Partly Sunny

    • 41
    • 72

    Partly Sunny

    • 31
    • 64

    Mostly Sunny

    • 29
    • 56

    Mostly Sunny

    • 30
    • 57

    Partly Sunny

Today 4 Apr Grande Ronde Valley

Sunny. Highs in the mid to upper 60s. Southeast wind 5 to 10 Mph.

Tonight 4 Apr Grande Ronde Valley

Mostly clear. Lows in the upper 30s. Southeast wind 5 to 10 Mph.

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La Grande/Union County Airport Temperature Statistics

April Temperature

La Grande/Union County Airport (0 miles)

  • Lowest 1 April, 2026

    39 °F

  • Average April

    45.6 °F

  • Highest 1 April, 2026

    53.1 °F

Climate (2021–Present)

La Grande/Union County Airport (0 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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