La Grande/Union County Airport Weather Forecast

    • 40
    • 68

    Decreasing Clouds

    • 45
    • 73

    Partly Sunny

    • 48
    • 75

    Mostly Cloudy

    • 44
    • 74

    Chance Rain

    • 30
    • 58

    Slight Chance Rain

    • 31
    • 57

    Mostly Cloudy

Today 17 Mar Grande Ronde Valley

Partly sunny. Highs in the upper 60s. South wind 5 to 15 Mph.

Tonight 17 Mar Grande Ronde Valley

Mostly cloudy in the evening then clearing. Lows in the lower to mid 40s. South wind 5 to 10 Mph.

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La Grande/Union County Airport Temperature Statistics

March Temperature

La Grande/Union County Airport (0 miles)

  • Lowest 3 March, 2026

    21.9 °F

  • Average March

    42.8 °F

  • Highest 7 March, 2026

    64 °F

Climate (2021–Present)

La Grande/Union County Airport (0 miles)

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  • Average Low 2021–2026

    38.3 °F

  • Average 2021–2026

    50.6 °F

  • Average High 2021–2026

    62.8 °F
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