Irrigon Weather Forecast

    • 36
    • 54

    Increasing Clouds

    • 41
    • 53

    Mostly Cloudy

    • 43
    • 60

    Rain Likely

    • 43
    • 59

    Rain

    • 37
    • 52

    Rain Likely

    • 38
    • 49

    Rain

    • 36
    • 50

    Chance Rain

Today 13 Dec Lower Columbia Basin of Oregon

Sunny. Highs in the mid 50s. South wind 5 to 10 Mph in the Morning, becoming light.

Tonight 13 Dec Lower Columbia Basin of Oregon

Mostly cloudy. Lows in the mid to upper 30s. Light Wind, becoming south 5 to 10 Mph overnight.

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Irrigon Temperature Statistics

December Temperature

Hermiston, Hermiston Municipal Airport (11.8 miles)

  • Lowest 1 December, 2025

    25 °F

  • Average December

    46 °F

  • Highest 10 December, 2025

    70 °F

Climate (2020–Present)

Hermiston, Hermiston Municipal Airport (11.8 miles)

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  • Average Low 2020–2025

    43 °F

  • Average 2020–2025

    55.3 °F

  • Average High 2020–2025

    67.7 °F
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