Walla Walla Regional Airport Weather Forecast

    • 45
    • 69

    Rain Showers

    • 42
    • 65

    Partly Sunny

    • 44
    • 66

    Partly Sunny

    • 50
    • 70

    Partly Sunny

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    • 72

    Partly Sunny

    • 50
    • 72

    Partly Sunny

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    • 69

    Partly Sunny

Today 25 Sep Foothills of the Blue Mountains of Washington

Partly cloudy. Highs in the 60s.

Tonight 25 Sep Foothills of the Blue Mountains of Washington

Partly cloudy. Patchy blowing dust in the evening. Lows in the lower to mid 40s. Windy. Southwest wind 20 to 30 Mph with Gusts to around 40 Mph decreasing to 5 to 15 Mph with Gusts to around 30 Mph overnight.

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Walla Walla Regional Airport Temperature Statistics

September Temperature

Walla Walla Regional Airport (0 miles)

  • Lowest 15 September, 2026

    48.7 °F

  • Average September

    65.2 °F

  • Highest 20 September, 2026

    87.7 °F

Climate (2021–2026)

Walla Walla Regional Airport (0 miles)

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  • Average Low 2021–2026

    45.4 °F

  • Average 2021–2026

    54.9 °F

  • Average High 2021–2026

    64.5 °F
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