Washington Park Weather Forecast

    • 42
    • 66

    Increasing Clouds

    • 43
    • 68

    Partly Sunny

    • 48
    • 72

    Mostly Sunny

    • 49
    • 74

    Partly Sunny

    • 49
    • 73

    Partly Sunny

    • 46
    • 70

    Partly Sunny

Today 26 Sep Foothills of the Blue Mountains of Washington

Mostly cloudy in the morning then clearing. Highs in the lower to mid 60s. Southwest wind 5 to 10 Mph. Gusts up to 20 Mph in the morning.

Tonight 26 Sep Foothills of the Blue Mountains of Washington

Mostly cloudy. Lows in the lower 40s. Light Wind, becoming east 5 to 10 Mph overnight.

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Washington Park Temperature Statistics

September Temperature

Walla Walla Regional Airport (3.7 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 (3.7 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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