Lake Umatilla Weather Forecast

    • 61
    • 89

    Areas Smoke

    • 57
    • 88

    Sunny

    • 58
    • 88

    Sunny

    • 58
    • 91

    Sunny

    • 62
    • 93

    Sunny

    • 58
    • 91

    Breezy

    • 55
    • 85

    Sunny

Today 27 Jul Lower Columbia Basin of Washington

Sunny. Patchy smoke. Highs in the upper 80s to lower 90s. Southwest wind 5 to 10 Mph with Gusts to around 20 Mph.

Tonight 27 Jul Lower Columbia Basin of Washington

Clear. Patchy smoke in the evening. Lows in the upper 50s to lower 60s. Southwest wind 5 to 10 Mph. Gusts up to 20 Mph in the evening.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Umatilla Temperature Statistics

July Temperature

Hermiston, Hermiston Municipal Airport (16.8 miles)

  • Lowest 5 July, 2026

    51.7 °F

  • Average July

    77.3 °F

  • Highest 15 July, 2026

    102.7 °F

Climate (2021–2026)

Hermiston, Hermiston Municipal Airport (16.8 miles)

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  • Average Low 2021–2026

    42.9 °F

  • Average 2021–2026

    55.1 °F

  • Average High 2021–2026

    67.6 °F
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