Washington Park Weather Forecast

    • 53
    • 75

    Mostly Cloudy

    • 50
    • 81

    Increasing Clouds

    • 49
    • 62

    Rain Showers

    • 46
    • 71

    Mostly Sunny

    • 47
    • 72

    Mostly Sunny

    • 49
    • 76

    Sunny

    • 52
    • 80

    Mostly Sunny

Today 11 Sep Foothills of the Blue Mountains of Washington

Mostly cloudy. Highs in the lower to mid 70s. Southwest wind 5 to 10 Mph.

Tonight 11 Sep Foothills of the Blue Mountains of Washington

Mostly cloudy. Lows in the lower 50s. East wind 5 to 10 Mph in the Evening, becoming light.

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Washington Park Temperature Statistics

September Temperature

Walla Walla Regional Airport (3.7 miles)

  • Lowest 4 September, 2026

    49.6 °F

  • Average September

    64.3 °F

  • Highest 9 September, 2026

    84.9 °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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