Lower Monumental State Airport Weather Forecast

    • 35
    • 61

    Chance Rain

    • 33
    • 58

    Mostly Sunny

    • 35
    • 60

    Mostly Sunny

    • 39
    • 63

    Partly Sunny

    • 42
    • 66

    Partly Sunny

    • 44
    • 69

    Mostly Sunny

Today 23 Apr Lower Columbia Basin of Washington

Mostly cloudy in the Morning, becoming partly cloudy. Highs in the lower to mid 60s. West wind 5 to 15 Mph with Gusts to around 25 Mph.

Tonight 23 Apr Lower Columbia Basin of Washington

Partly cloudy. A 20 percent chance of rain in the evening. Lows in the mid 30s to lower 40s. Northwest wind 5 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lower Monumental State Airport Temperature Statistics

April Temperature

Walla Walla Regional Airport (33.6 miles)

  • Lowest 16 April, 2026

    36.6 °F

  • Average April

    53.2 °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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