Wallowa Lake Weather Forecast

    • 36
    • 56

    Partly Sunny

    • 40
    • 62

    Increasing Clouds

    • 41
    • 64

    Partly Sunny

    • 43
    • 67

    Mostly Sunny

    • 43
    • 71

    Mostly Sunny

    • 46
    • 75

    Mostly Sunny

    • 45
    • 75

    Partly Sunny

Today 18 May Wallowa County

Partly cloudy with a 20 percent chance of Showers and Thunderstorms. Highs in the upper 40s to mid 50s, except in the mid 50s to lower 60s Valleys.

Tonight 18 May Wallowa County

Partly cloudy. A 20 percent chance of rain Showers in the evening. Lows in the upper 20s to upper 30s. Gusts up to 20 Mph in the evening.

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  • Temperature Forecast NOAA

  • 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

    59.2 °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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