La Grande/Union County Airport Weather Forecast

    • 44
    • 78

    Rain

    • 28
    • 56

    Rain

    • 34
    • 58

    Partly Sunny

    • 39
    • 62

    Mostly Cloudy

    • 40
    • 65

    Chance Rain

    • 29
    • 57

    Slight Chance Rain/Snow

    • 28
    • 52

    Mostly Sunny

Today 20 Mar Grande Ronde Valley

Mostly sunny. Highs in the upper 70s. South wind 5 to 15 Mph. Gusts up to 25 Mph in the afternoon.

Tonight 20 Mar Grande Ronde Valley

Mostly cloudy. A 50 percent chance of rain overnight. Lows in the mid 40s. Northwest wind 5 to 15 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

    43.9 °F

  • Highest 18 March, 2026

    75.9 °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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