Umatilla National Wildlife Refuge Weather Forecast

    • 41
    • 58

    Decreasing Clouds

    • 36
    • 56

    Mostly Sunny

    • 39
    • 58

    Mostly Sunny

    • 44
    • 59

    Partly Sunny

    • 43
    • 61

    Mostly Sunny

    • 47
    • 61

    Chance Rain Showers

Today 13 Oct Lower Columbia Basin of Oregon

Cloudy. Rain Showers likely in the Morning, then a chance of rain Showers in the afternoon. Highs in the 50s. Breezy. North wind 10 to 20 Mph with Gusts to around 30 Mph. Chance of precipitation 70 percent. Rainfall Amounts less than a tenth of an inch.

Tonight 13 Oct Lower Columbia Basin of Oregon

Mostly cloudy in the evening then clearing. Lows in the mid to upper 30s. North wind 5 to 15 Mph.

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Umatilla National Wildlife Refuge Temperature Statistics

October Temperature

Hermiston, Hermiston Municipal Airport (16.2 miles)

  • Lowest 7 October, 2025

    34 °F
  • Average October

    56.8 °F
  • Highest 8 October, 2025

    75.9 °F

Climate (2020–Present)

Hermiston, Hermiston Municipal Airport (16.2 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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