Wallowa Lake Weather Forecast

    • 41
    • 64

    Decreasing Clouds

    • 43
    • 66

    Mostly Sunny

    • 45
    • 71

    Mostly Sunny

    • 46
    • 75

    Mostly Sunny

    • 47
    • 77

    Partly Sunny

    • 37
    • 67

    Chance Rain/Snow

Today 20 May Wallowa County

Mostly cloudy. Highs in the mid 50s to lower 60s, except in the 60s Valleys. Gusts up to 20 Mph in the afternoon.

Tonight 20 May Wallowa County

Partly cloudy. Lows in the mid 30s to lower 40s.

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  • Temperature Real-Time

Wallowa Lake Temperature Statistics

May Temperature

La Grande/Union County Airport (38.5 miles)

  • Lowest 1 May, 2026

    36 °F
  • Average May

    58.4 °F
  • Highest 12 May, 2026

    91 °F

Climate (2021–Present)

La Grande/Union County Airport (38.5 miles)

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  • Average Low 2021–2026

    38.4 °F
  • Average 2021–2026

    50.7 °F
  • Average High 2021–2026

    62.8 °F
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