Lake Wallula Weather Forecast

    • 33
    • 42

    Chance Rain

    • 33
    • 49

    Partly Sunny

    • 34
    • 45

    Rain Likely

    • 30
    • 43

    Chance Rain

    • 30
    • 42

    Chance Rain

    • 30
    • 43

    Mostly Cloudy

Today 21 Dec Lower Columbia Basin of Oregon

A chance of rain in the Morning, then rain likely in the afternoon. Highs in the lower 40s. Light wind. Chance of precipitation 70 percent. Rainfall Amounts less than a tenth of an inch.

Tonight 21 Dec Lower Columbia Basin of Oregon

Rain likely in the Evening, then a chance of rain overnight. Lows in the lower 30s. Light Wind, becoming southwest 5 to 10 Mph overnight. Chance of precipitation 70 percent. Rainfall Amounts less than a tenth of an inch.

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Lake Wallula Temperature Statistics

December Temperature

Hermiston, Hermiston Municipal Airport (7.5 miles)

  • Lowest 1 December, 2025

    25 °F

  • Average December

    46.5 °F

  • Highest 15 December, 2025

    72 °F

Climate (2020–Present)

Hermiston, Hermiston Municipal Airport (7.5 miles)

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  • Average Low 2020–2025

    43 °F

  • Average 2020–2025

    55.4 °F

  • Average High 2020–2025

    67.7 °F
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