Hermiston Weather Forecast

    • 41
    • 64

    Increasing Clouds

    • 36
    • 68

    Mostly Sunny

    • 47
    • 64

    Rain Likely

    • 42
    • 62

    Chance Rain

    • 39
    • 62

    Mostly Sunny

    • 40
    • 62

    Partly Sunny

Today 16 Oct Lower Columbia Basin of Oregon

Sunny. Areas of frost in the morning. Highs in the mid 60s. Southwest wind 5 to 10 Mph.

Tonight 16 Oct Lower Columbia Basin of Oregon

Mostly cloudy. Lows in the lower to mid 40s. Breezy. Southwest wind 10 to 20 Mph with Gusts to around 30 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Hermiston Temperature Statistics

October Temperature

Hermiston, Hermiston Municipal Airport (1.2 miles)

  • Lowest 14 October, 2025

    30 °F

  • Average October

    54.9 °F

  • Highest 8 October, 2025

    75.9 °F

Climate (2020–Present)

Hermiston, Hermiston Municipal Airport (1.2 miles)

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  • Average Low 2020–2025

    42.9 °F

  • Average 2020–2025

    55.1 °F

  • Average High 2020–2025

    67.5 °F
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