Washington Park Weather Forecast

    • 50
    • 75

    Becoming Sunny

    • 54
    • 84

    Sunny

    • 55
    • 87

    Sunny

    • 54
    • 83

    Partly Sunny

    • 55
    • 85

    Mostly Sunny

    • 58
    • 85

    Partly Sunny

Today 15 Sep Foothills of the Blue Mountains of Washington

Partly cloudy in the morning then clearing. Highs in the lower to mid 70s. Southwest wind 5 to 15 Mph. Gusts up to 25 Mph in the morning.

Tonight 15 Sep Foothills of the Blue Mountains of Washington

Clear. Lows in the upper 40s to lower 50s. East wind 5 to 10 Mph.

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Washington Park Temperature Statistics

September Temperature

Walla Walla Regional Airport (3.7 miles)

  • Lowest 12 September, 2025

    60.1 °F

  • Average September

    78.2 °F

  • Highest 2 September, 2025

    97 °F

Climate (2020–Present)

Walla Walla Regional Airport (3.7 miles)

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  • Average Low 2020–2025

    45.1 °F

  • Average 2020–2025

    54.6 °F

  • Average High 2020–2025

    64.1 °F
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