Hermiston Municipal Airport Weather Forecast

    • 54
    • 85

    Patchy Smoke

    • 54
    • 84

    Mostly Sunny

    • 47
    • 76

    Mostly Sunny

    • 47
    • 78

    Mostly Sunny

    • 52
    • 85

    Partly Sunny

    • 49
    • 79

    Partly Sunny

Today 27 Aug Lower Columbia Basin of Oregon

Mostly cloudy in the morning then clearing. Highs in the lower to mid 80s. Windy. Southwest wind 15 to 25 Mph with Gusts to around 35 Mph.

Tonight 27 Aug Lower Columbia Basin of Oregon

Mostly clear. Patchy smoke in the evening. Lows in the lower to mid 50s. Breezy. Southwest wind 10 to 20 Mph. Gusts up to 35 Mph decreasing to 25 Mph overnight.

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Hermiston Municipal Airport Temperature Statistics

August Temperature

Hermiston, Hermiston Municipal Airport (0 miles)

  • Lowest 4 August, 2026

    45.6 °F
  • Average August

    75.1 °F
  • Highest 7 August, 2026

    100.7 °F

Climate (2021–2026)

Hermiston, Hermiston Municipal Airport (0 miles)

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  • Average Low 2021–2026

    42.8 °F
  • Average 2021–2026

    55.1 °F
  • Average High 2021–2026

    67.6 °F
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