McCormack Slough Weather Forecast

    • 41
    • 68

    Partly Sunny

    • 48
    • 69

    Partly Sunny

    • 49
    • 63

    Chance Rain Showers

    • 47
    • 65

    Slight Chance Rain Showers

    • 46
    • 64

    Mostly Cloudy

    • 44
    • 65

    Partly Sunny

Today 23 Apr Lower Columbia Basin of Oregon

Partly cloudy. Highs in the upper 60s to lower 70s. Light Wind, becoming north 5 to 10 Mph in the afternoon.

Tonight 23 Apr Lower Columbia Basin of Oregon

Mostly clear. Lows in the upper 30s to lower 40s. Light Wind, becoming south 5 to 10 Mph overnight.

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McCormack Slough Temperature Statistics

April Temperature

Hermiston, Hermiston Municipal Airport (16.2 miles)

  • Lowest 17 April, 2024

    27.8 °F

  • Average April

    51.9 °F

  • Highest 2 April, 2024

    80.7 °F

Climate (2019–Present)

Hermiston, Hermiston Municipal Airport (16.2 miles)

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  • Average Low 2019–2024

    42.9 °F

  • Average 2019–2024

    54.9 °F

  • Average High 2019–2024

    67 °F
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