Wallowa Lake Weather Forecast

    • 52
    • 75

    Increasing Clouds

    • 48
    • 73

    Partly Sunny

    • 50
    • 72

    Partly Sunny

    • 50
    • 76

    Mostly Cloudy

    • 40
    • 63

    Chance Rain Showers

    • 40
    • 60

    Partly Sunny

Today 21 Sep Wallowa County

Sunny. Highs in the upper 60s to upper 70s, except in the upper 70s to mid 80s Valleys.

Tonight 21 Sep Wallowa County

Partly cloudy. Lows in the mid 40s to mid 50s.

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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 15 September, 2026

    36 °F

  • Average September

    58.7 °F

  • Highest 10 September, 2026

    89.1 °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

    50.5 °F

  • Average High 2021–2026

    62.7 °F
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