Washington Park Weather Forecast

    • 53
    • 80

    Mostly Sunny

    • 55
    • 83

    Sunny

    • 56
    • 85

    Mostly Sunny

    • 54
    • 81

    Partly Sunny

    • 53
    • 77

    Partly Sunny

    • 52
    • 76

    Partly Sunny

Today 19 Sep Foothills of the Blue Mountains of Washington

Sunny. Highs in the upper 70s to lower 80s. Light wind.

Tonight 19 Sep Foothills of the Blue Mountains of Washington

Mostly clear. Lows in the lower 50s. Light wind.

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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

    64 °F

  • Highest 9 September, 2026

    86.6 °F

Climate (2021–2026)

Walla Walla Regional Airport (3.7 miles)

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  • Average Low 2021–2026

    45.3 °F

  • Average 2021–2026

    54.8 °F

  • Average High 2021–2026

    64.5 °F
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