Umatilla National Wildlife Refuge Weather Forecast

    • 45
    • 69

    Mostly Sunny

    • 51
    • 78

    Sunny

    • 54
    • 83

    Chance Rain Showers

    • 45
    • 64

    Chance Rain Showers

    • 47
    • 67

    Mostly Sunny

    • 53
    • 76

    Mostly Sunny

    • 55
    • 80

    Mostly Sunny

Today 30 Apr Lower Columbia Basin of Oregon

Sunny. Highs around 70. West wind 5 to 15 Mph.

Tonight 30 Apr Lower Columbia Basin of Oregon

Clear. Lows in the lower to mid 40s. Light Wind, becoming south 5 to 10 Mph overnight.

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Umatilla National Wildlife Refuge Temperature Statistics

April Temperature

Hermiston, Hermiston Municipal Airport (16.2 miles)

  • Lowest 5 April, 2025

    28.9 °F

  • Average April

    53.3 °F

  • Highest 26 April, 2025

    80.7 °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

    67.3 °F
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