Lower Monumental State Airport Weather Forecast

    • 32
    • 56

    Decreasing Clouds

    • 35
    • 58

    Mostly Sunny

    • 43
    • 69

    Mostly Cloudy

    • 47
    • 73

    Mostly Cloudy

    • 49
    • 75

    Chance Rain

    • 46
    • 69

    Chance Rain

Today 16 Apr Lower Columbia Basin of Washington

Partly cloudy. Highs in the upper 50s to lower 60s. West wind 5 to 15 Mph with Gusts to around 25 Mph.

Tonight 16 Apr Lower Columbia Basin of Washington

Mostly clear. Lows in the lower to mid 30s. West wind 5 to 15 Mph with Gusts to around 25 Mph.

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  • Temperature Real-Time

Lower Monumental State Airport Temperature Statistics

April Temperature

Walla Walla Regional Airport (33.6 miles)

  • Lowest 9 April, 2026

    37.7 °F

  • Average April

    54 °F

  • Highest 6 April, 2026

    74.6 °F

Climate (2021–Present)

Walla Walla Regional Airport (33.6 miles)

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  • Average Low 2021–2026

    45.5 °F

  • Average 2021–2026

    55 °F

  • Average High 2021–2026

    64.5 °F
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