Umatilla Weather Forecast

    • 60
    • 89

    Mostly Sunny

    • 63
    • 95

    Sunny

    • 65
    • 96

    Sunny

    • 62
    • 94

    Mostly Sunny

    • 62
    • 93

    Mostly Sunny

    • 62
    • 92

    Mostly Sunny

Today 22 Jul Lower Columbia Basin of Oregon

Sunny. Highs in the upper 80s. West wind 5 to 15 Mph.

Tonight 22 Jul Lower Columbia Basin of Oregon

Mostly clear. Lows in the lower 60s. West wind 5 to 10 Mph.

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Umatilla Temperature Statistics

July Temperature

Hermiston, Hermiston Municipal Airport (6.8 miles)

  • Lowest 6 July, 2025

    53.7 °F

  • Average July

    78.1 °F

  • Highest 8 July, 2025

    104.6 °F

Climate (2020–Present)

Hermiston, Hermiston Municipal Airport (6.8 miles)

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  • Average Low 2020–2025

    42.8 °F

  • Average 2020–2025

    55.1 °F

  • Average High 2020–2025

    67.5 °F
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