Whitman Mission National Historic Site Weather Forecast

    • 69
    • 101

    Patchy Smoke

    • 58
    • 96

    Patchy Smoke

    • 54
    • 87

    Sunny

    • 58
    • 93

    Mostly Sunny

    • 61
    • 95

    Mostly Sunny

    • 55
    • 90

    Mostly Sunny

    • 53
    • 87

    Mostly Sunny

Today 21 Aug Foothills of the Blue Mountains of Washington

Hot. Partly cloudy. Patchy smoke. Highs 101 to 104. North wind 5 to 10 Mph.

Tonight 21 Aug Foothills of the Blue Mountains of Washington

Mostly cloudy. Patchy smoke in the evening. Lows in the upper 60s to lower 70s. North wind 5 to 10 Mph shifting to the south overnight.

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  • Temperature Real-Time

Whitman Mission National Historic Site Temperature Statistics

August Temperature

Walla Walla Regional Airport (9.3 miles)

  • Lowest 4 August, 2026

    53.7 °F

  • Average August

    77.1 °F

  • Highest 7 August, 2026

    98.7 °F

Climate (2021–2026)

Walla Walla Regional Airport (9.3 miles)

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  • Average Low 2021–2026

    45.3 °F

  • Average 2021–2026

    54.8 °F

  • Average High 2021–2026

    64.4 °F
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