La Grande Weather Forecast

    • 42
    • 74

    Sunny

    • 46
    • 79

    Mostly Sunny

    • 40
    • 61

    Rain Showers Likely

    • 39
    • 59

    Mostly Sunny

    • 42
    • 69

    Mostly Sunny

    • 46
    • 77

    Mostly Sunny

Today 1 May Grande Ronde Valley

Sunny. Highs in the mid 70s. Light wind.

Tonight 1 May Grande Ronde Valley

Clear. Lows in the lower to mid 40s. Light Wind, becoming east 5 to 10 Mph overnight.

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La Grande Temperature Statistics

May Temperature

La Grande/Union County Airport (4.3 miles)

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  • Average May

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Climate (2020–Present)

La Grande/Union County Airport (4.3 miles)

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  • Average Low 2020–2025

    37.7 °F

  • Average 2020–2025

    50 °F

  • Average High 2020–2025

    62 °F
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