Lower Monumental State Airport Weather Forecast

    • 39
    • 65

    Increasing Clouds

    • 39
    • 62

    Mostly Cloudy

    • 38
    • 68

    Partly Sunny

    • 40
    • 67

    Mostly Cloudy

    • 37
    • 63

    Chance Rain Showers

    • 33
    • 58

    Mostly Sunny

    • 35
    • 57

    Chance Rain Showers

Today 18 Oct Lower Columbia Basin of Washington

Sunny. Highs in the mid 60s. North wind 5 to 10 Mph.

Tonight 18 Oct Lower Columbia Basin of Washington

Mostly cloudy. Lows in the upper 30s to lower 40s. North wind 5 to 10 Mph in the Evening, becoming light.

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Lower Monumental State Airport Temperature Statistics

October Temperature

Walla Walla Regional Airport (33.6 miles)

  • Lowest 11 October, 2026

    35.7 °F

  • Average October

    59.6 °F

  • Highest 5 October, 2026

    84.7 °F

Climate (2021–2026)

Walla Walla Regional Airport (33.6 miles)

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  • Average Low 2021–2026

    45.4 °F

  • Average 2021–2026

    54.9 °F

  • Average High 2021–2026

    64.6 °F
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