La Grande Reservoir Weather Forecast

    • 25
    • 53

    Chance Snow

    • 23
    • 36

    Chance Snow

    • 32
    • 45

    Snow Likely

    • 26
    • 43

    Rain

    • 25
    • 36

    Snow

    • 26
    • 42

    Chance Snow

    • 31
    • 51

    Mostly Sunny

Today 29 Mar Southern Blue Mountains of Oregon

Partly sunny. A 20 percent chance of rain in the afternoon. Highs in the 50s. West wind 5 to 15 Mph with Gusts to around 25 Mph in the afternoon.

Tonight 29 Mar Southern Blue Mountains of Oregon

Mostly cloudy. A 50 percent chance of rain and high mountain snow overnight. Snow level 4500 feet overnight. Lows in the mid 20s to lower 30s. West wind 5 to 15 Mph with Gusts to around 30 Mph in the Evening, becoming light.

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La Grande Reservoir Temperature Statistics

March Temperature

La Grande/Union County Airport (13.7 miles)

  • Lowest 27 March, 2026

    19 °F

  • Average March

    45.6 °F

  • Highest 20 March, 2026

    79 °F

Climate (2021–Present)

La Grande/Union County Airport (13.7 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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