La Grande/Union County Airport Weather Forecast

    • 52
    • 85

    Chance Thunderstorms

    • 52
    • 86

    Rain Showers Likely

    • 54
    • 88

    Slight Chance Thunderstorms

    • 51
    • 88

    Chance Rain Showers

    • 47
    • 86

    Partly Sunny

    • 49
    • 87

    Partly Sunny

    • 51
    • 89

    Partly Sunny

Today 14 Aug Grande Ronde Valley

Mostly cloudy with a chance of Showers and Thunderstorms. Highs in the mid 80s. Light wind. Chance of precipitation 50 percent. Rainfall Amounts less than a tenth of an Inch, except higher Amounts possible in Thunderstorms.

Tonight 14 Aug Grande Ronde Valley

Partly cloudy. A 20 percent chance of rain Showers in the evening. Patchy smoke through the night. Lows in the lower to mid 50s. Light wind.

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La Grande/Union County Airport Temperature Statistics

August Temperature

La Grande/Union County Airport (0 miles)

  • Lowest 5 August, 2026

    43 °F

  • Average August

    70.5 °F

  • Highest 7 August, 2026

    99 °F

Climate (2021–2026)

La Grande/Union County Airport (0 miles)

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  • Average Low 2021–2026

    38.2 °F

  • Average 2021–2026

    50.5 °F

  • Average High 2021–2026

    62.7 °F
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