La Grande/Union County Airport Weather Forecast

    • 54
    • 91

    Mostly Cloudy

    • 45
    • 84

    Mostly Sunny

    • 46
    • 81

    Sunny

    • 49
    • 86

    Sunny

    • 53
    • 93

    Mostly Sunny

    • 52
    • 93

    Mostly Sunny

    • 50
    • 90

    Mostly Sunny

Today 19 Jun Grande Ronde Valley

Partly cloudy. Highs in the lower 90s. Light wind.

Tonight 19 Jun Grande Ronde Valley

Mostly cloudy. Lows in the lower to mid 50s. Northwest wind 5 to 10 Mph.

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La Grande/Union County Airport Temperature Statistics

June Temperature

La Grande/Union County Airport (0 miles)

  • Lowest 11 June, 2026

    36 °F

  • Average June

    60.6 °F

  • Highest 15 June, 2026

    89.1 °F

Climate (2021–2026)

La Grande/Union County Airport (0 miles)

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  • Average Low 2021–2026

    38.3 °F

  • Average 2021–2026

    50.7 °F

  • Average High 2021–2026

    62.8 °F
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