La Grande/Union County Airport Weather Forecast

    • 49
    • 77

    Mostly Sunny

    • 53
    • 86

    Sunny

    • 58
    • 93

    Sunny

    • 60
    • 98

    Hot

    • 56
    • 90

    Mostly Sunny

    • 54
    • 84

    Sunny

    • 57
    • 91

    Sunny

Today 5 Jul Grande Ronde Valley

Partly cloudy in the morning then clearing. Highs in the lower 80s. Light Wind, becoming northwest 5 to 10 Mph in the afternoon.

Tonight 5 Jul Grande Ronde Valley

Mostly clear. Lows in the upper 40s to lower 50s. Light wind.

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La Grande/Union County Airport Temperature Statistics

July Temperature

La Grande/Union County Airport (0 miles)

  • Lowest 1 July, 2025

    53.1 °F

  • Average July

    74 °F

  • Highest 1 July, 2025

    86 °F

Climate (2020–Present)

La Grande/Union County Airport (0 miles)

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  • Average Low 2020–2025

    37.7 °F

  • Average 2020–2025

    50.1 °F

  • Average High 2020–2025

    62.3 °F
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