Hermiston Municipal Airport Weather Forecast

    • 53
    • 87

    Blowing Dust

    • 49
    • 77

    Partly Sunny

    • 48
    • 75

    Chance Rain Showers

    • 45
    • 69

    Slight Chance Rain Showers

    • 46
    • 74

    Mostly Sunny

    • 48
    • 76

    Mostly Sunny

Today 10 Sep Lower Columbia Basin of Oregon

Sunny. Patchy blowing dust. Highs in the mid 80s. Windy. West wind 15 to 25 Mph with Gusts to around 40 Mph.

Tonight 10 Sep Lower Columbia Basin of Oregon

Patchy blowing dust in the evening. Mostly cloudy with a 20 percent chance of rain Showers in the Evening, then mostly clear overnight. Lows in the lower 50s. Windy. West wind 15 to 25 Mph. Gusts up to 40 Mph decreasing to 30 Mph overnight.

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Hermiston Municipal Airport Temperature Statistics

September Temperature

Hermiston, Hermiston Municipal Airport (0 miles)

  • Lowest 4 September, 2026

    42.7 °F

  • Average September

    63.8 °F

  • Highest 1 September, 2026

    86.6 °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

    67.5 °F
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