La Grande/Union County Airport Weather Forecast

    • 26
    • 58

    Mostly Sunny

    • 32
    • 61

    Mostly Sunny

    • 29
    • 63

    Partly Sunny

    • 41
    • 64

    Rain Showers Likely

    • 32
    • 57

    Rain Showers Likely

    • 30
    • 55

    Chance Rain Showers

    • 32
    • 57

    Partly Sunny

Today 15 Oct Grande Ronde Valley

Sunny. Widespread frost in the morning. Highs in the upper 50s to lower 60s. Northwest wind 5 to 10 Mph. Gusts up to 20 Mph in the afternoon.

Tonight 15 Oct Grande Ronde Valley

Mostly clear. Widespread frost overnight. Lows in the mid to upper 20s. Northwest wind 5 to 10 Mph with Gusts to around 20 Mph in the Evening, becoming light.

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La Grande/Union County Airport Temperature Statistics

October Temperature

La Grande/Union County Airport (0 miles)

  • Lowest 6 October, 2025

    27 °F

  • Average October

    52.9 °F

  • Highest 9 October, 2025

    80.1 °F

Climate (2020–Present)

La Grande/Union County Airport (0 miles)

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  • Average Low 2020–2025

    37.9 °F

  • Average 2020–2025

    50.2 °F

  • Average High 2020–2025

    62.3 °F
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