Irrigon Weather Forecast

    • 54
    • 84

    Increasing Clouds

    • 53
    • 79

    Partly Sunny

    • 49
    • 77

    Breezy

    • 53
    • 80

    Partly Sunny

    • 52
    • 83

    Partly Sunny

    • 52
    • 82

    Mostly Sunny

    • 53
    • 84

    Mostly Sunny

Today 6 May Lower Columbia Basin of Oregon

Sunny. Highs in the lower to mid 80s. Windy. West wind 20 to 30 Mph with Gusts to around 45 Mph.

Tonight 6 May Lower Columbia Basin of Oregon

Mostly cloudy in the evening then clearing. Lows in the lower to mid 50s. Windy. Southwest wind 20 to 30 Mph. Gusts up to 45 Mph decreasing to 35 Mph overnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Irrigon Temperature Statistics

May Temperature

Hermiston, Hermiston Municipal Airport (11.8 miles)

  • Lowest 1 May, 2026

    37.7 °F

  • Average May

    65.6 °F

  • Highest 3 May, 2026

    87.7 °F

Climate (2021–Present)

Hermiston, Hermiston Municipal Airport (11.8 miles)

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  • Average Low 2021–2026

    43.1 °F

  • Average 2021–2026

    55.3 °F

  • Average High 2021–2026

    67.7 °F
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