La Grande/Union County Airport Weather Forecast

    • 38
    • 63

    Increasing Clouds

    • 37
    • 67

    Mostly Sunny

    • 42
    • 72

    Mostly Sunny

    • 45
    • 73

    Partly Sunny

    • 45
    • 71

    Partly Sunny

    • 46
    • 75

    Partly Sunny

Today 28 Apr Grande Ronde Valley

Partly cloudy. Highs in the lower 60s. Light Wind, becoming south 5 to 10 Mph in the afternoon.

Tonight 28 Apr Grande Ronde Valley

Mostly cloudy. Lows in the upper 30s. Northwest 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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