Pioneer Park Weather Forecast

    • 48
    • 74

    Becoming Sunny

    • 49
    • 78

    Mostly Sunny

    • 53
    • 82

    Mostly Sunny

    • 54
    • 85

    Mostly Sunny

    • 53
    • 83

    Partly Sunny

    • 46
    • 73

    Partly Sunny

Today 20 May Foothills of the Blue Mountains of Washington

Mostly cloudy in the morning then clearing. Highs in the lower to mid 70s. Southwest wind 5 to 10 Mph. Gusts up to 20 Mph in the morning.

Tonight 20 May Foothills of the Blue Mountains of Washington

Partly cloudy. Lows in the mid to upper 40s. West wind 5 to 10 Mph shifting to the east overnight.

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  • Temperature Real-Time

Pioneer Park Temperature Statistics

May Temperature

Walla Walla Regional Airport (2.5 miles)

  • Lowest 17 May, 2026

    43 °F

  • Average May

    62.9 °F

  • Highest 2 May, 2026

    85.6 °F

Climate (2021–Present)

Walla Walla Regional Airport (2.5 miles)

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  • Average Low 2021–2026

    45.5 °F

  • Average 2021–2026

    55 °F

  • Average High 2021–2026

    64.5 °F
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