Wallowa Lake Weather Forecast

    • 43
    • 65

    Decreasing Clouds

    • 43
    • 68

    Rain Showers

    • 42
    • 59

    Rain Showers

    • 46
    • 69

    Mostly Sunny

    • 50
    • 76

    Mostly Sunny

    • 52
    • 77

    Partly Sunny

    • 48
    • 72

    Chance Rain Showers

Today 5 Sep Wallowa County

Sunny. Highs in the upper 50s to mid 60s, except in the mid 60s to mid 70s Valleys.

Tonight 5 Sep Wallowa County

Partly cloudy. Lows in the upper 30s to upper 40s.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Wallowa Lake Temperature Statistics

September Temperature

La Grande/Union County Airport (38.5 miles)

  • Lowest 3 September, 2026

    44.1 °F

  • Average September

    60.5 °F

  • Highest 1 September, 2026

    82 °F

Climate (2021–2026)

La Grande/Union County Airport (38.5 miles)

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  • Average Low 2021–2026

    38.3 °F

  • Average 2021–2026

    50.6 °F

  • Average High 2021–2026

    62.7 °F
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