Lower Monumental State Airport Weather Forecast

    • 50
    • 80

    Mostly Sunny

    • 50
    • 82

    Partly Sunny

    • 49
    • 80

    Mostly Sunny

    • 50
    • 81

    Mostly Sunny

    • 51
    • 81

    Mostly Sunny

    • 47
    • 79

    Partly Sunny

    • 42
    • 68

    Mostly Sunny

Today 4 Oct Lower Columbia Basin of Washington

Sunny. Highs in the upper 70s to lower 80s. Light wind.

Tonight 4 Oct Lower Columbia Basin of Washington

Mostly clear. Lows in the upper 40s to lower 50s. Light wind.

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Lower Monumental State Airport Temperature Statistics

October Temperature

Walla Walla Regional Airport (33.6 miles)

  • Lowest 1 October, 2026

    51.1 °F

  • Average October

    62.9 °F

  • Highest 2 October, 2026

    79 °F

Climate (2021–2026)

Walla Walla Regional Airport (33.6 miles)

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  • Average Low 2021–2026

    45.3 °F

  • Average 2021–2026

    54.9 °F

  • Average High 2021–2026

    64.5 °F
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