Lower Monumental State Airport Weather Forecast

    • 37
    • 48

    Mostly Cloudy

    • 39
    • 54

    Mostly Cloudy

    • 30
    • 53

    Partly Sunny

    • 29
    • 47

    Mostly Sunny

    • 27
    • 44

    Areas Fog

    • 26
    • 41

    Areas Fog

    • 25
    • 40

    Partly Sunny

Today 11 Jan Lower Columbia Basin of Washington

Mostly cloudy. Patchy fog in the morning. Highs in the mid to upper 40s. Light Wind, becoming south 5 to 10 Mph in the afternoon.

Tonight 11 Jan Lower Columbia Basin of Washington

Mostly cloudy. Lows in the mid to upper 30s. South wind 5 to 10 Mph.

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Lower Monumental State Airport Temperature Statistics

January Temperature

Walla Walla Regional Airport (33.6 miles)

  • Lowest 1 January, 2026

    26.1 °F

  • Average January

    39 °F

  • Highest 4 January, 2026

    55 °F

Climate (2021–Present)

Walla Walla Regional Airport (33.6 miles)

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  • Average Low 2021–2026

    45.3 °F

  • Average 2021–2026

    54.8 °F

  • Average High 2021–2026

    64.4 °F
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