Umatilla Weather Forecast

    • 59
    • 92

    Becoming Sunny

    • 59
    • 91

    Sunny

    • 60
    • 91

    Sunny

    • 57
    • 90

    Mostly Sunny

    • 59
    • 89

    Mostly Sunny

    • 60
    • 91

    Mostly Sunny

Today 9 Aug Lower Columbia Basin of Oregon

Partly cloudy in the morning then clearing. Patchy smoke in the morning. Highs in the lower 90s. West wind 5 to 15 Mph with Gusts to around 25 Mph.

Tonight 9 Aug Lower Columbia Basin of Oregon

Mostly clear. Lows around 60. Southwest wind 5 to 15 Mph with Gusts to around 30 Mph.

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Umatilla Temperature Statistics

August Temperature

Hermiston, Hermiston Municipal Airport (6.8 miles)

  • Lowest 4 August, 2026

    45.6 °F

  • Average August

    69.1 °F

  • Highest 6 August, 2026

    97 °F

Climate (2021–2026)

Hermiston, Hermiston Municipal Airport (6.8 miles)

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  • Average Low 2021–2026

    42.8 °F

  • Average 2021–2026

    55.1 °F

  • Average High 2021–2026

    67.5 °F
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