Hermiston Municipal Airport Weather Forecast

    • 53
    • 65

    Mostly Cloudy

    • 45
    • 62

    Decreasing Clouds

    • 39
    • 58

    Mostly Cloudy

    • 36
    • 54

    Partly Sunny

    • 41
    • 55

    Mostly Cloudy

    • 42
    • 59

    Rain Likely

    • 40
    • 57

    Chance Rain

Today 10 Dec Lower Columbia Basin of Oregon

Mostly cloudy. A 20 percent chance of rain in the morning. Highs in the lower to mid 60s. Windy. Southwest wind 20 to 30 Mph with Gusts to around 40 Mph.

Tonight 10 Dec Lower Columbia Basin of Oregon

Mostly cloudy. Lows in the lower to mid 50s. Windy. Southwest wind 20 to 30 Mph with Gusts to around 40 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Hermiston Municipal Airport Temperature Statistics

December Temperature

Hermiston, Hermiston Municipal Airport (0 miles)

  • Lowest 1 December, 2025

    25 °F

  • Average December

    41.9 °F

  • Highest 8 December, 2025

    63 °F

Climate (2020–Present)

Hermiston, Hermiston Municipal Airport (0 miles)

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  • Average Low 2020–2025

    43 °F

  • Average 2020–2025

    55.3 °F

  • Average High 2020–2025

    67.6 °F
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