La Grande/Union County Airport Weather Forecast

    • 29
    • 56

    Partly Sunny

    • 30
    • 56

    Partly Sunny

    • 34
    • 58

    Chance Rain Showers

    • 34
    • 59

    Slight Chance Rain

    • 37
    • 63

    Mostly Sunny

    • 40
    • 69

    Mostly Sunny

Today 25 Apr Grande Ronde Valley

Sunny. Highs in the mid 50s. Light Wind, becoming north 5 to 10 Mph in the afternoon.

Tonight 25 Apr Grande Ronde Valley

Mostly clear. Lows in the upper 20s to lower 30s. North wind 5 to 10 Mph in the Evening, becoming light.

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La Grande/Union County Airport Temperature Statistics

April Temperature

La Grande/Union County Airport (0 miles)

  • Lowest 3 April, 2026

    28 °F

  • Average April

    47.5 °F

  • Highest 6 April, 2026

    75 °F

Climate (2021–Present)

La Grande/Union County Airport (0 miles)

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  • Average Low 2021–2026

    38.4 °F

  • Average 2021–2026

    50.7 °F

  • Average High 2021–2026

    62.8 °F
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