Lower Monumental State Airport Weather Forecast

    • 62
    • 83

    Mostly Cloudy

    • 58
    • 77

    Chance Rain Showers

    • 60
    • 85

    Mostly Sunny

    • 62
    • 92

    Sunny

    • 63
    • 96

    Mostly Sunny

    • 60
    • 92

    Mostly Sunny

Today 20 Jul Lower Columbia Basin of Washington

Mostly cloudy. Highs in the lower to mid 80s. Southwest wind 5 to 15 Mph.

Tonight 20 Jul Lower Columbia Basin of Washington

Cloudy. Lows in the lower to mid 60s. Southwest wind 5 to 10 Mph.

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Lower Monumental State Airport Temperature Statistics

July Temperature

Walla Walla Regional Airport (33.6 miles)

  • Lowest 7 July, 2025

    59.6 °F

  • Average July

    78.4 °F

  • Highest 8 July, 2025

    101.6 °F

Climate (2020–Present)

Walla Walla Regional Airport (33.6 miles)

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  • Average Low 2020–2025

    45 °F

  • Average 2020–2025

    54.5 °F

  • Average High 2020–2025

    64.1 °F
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