Cottonwood Creek Ranch Airport Weather Forecast

    • 59
    • 86

    Increasing Clouds

    • 59
    • 87

    Mostly Cloudy

    • 56
    • 87

    Partly Sunny

    • 51
    • 83

    Mostly Sunny

    • 54
    • 83

    Mostly Sunny

    • 56
    • 85

    Partly Sunny

Today 18 Sep Malheur County

Sunny. Highs 81 to 88. East Winds up to 10 Mph.

Tonight 18 Sep Malheur County

Mostly cloudy. Lows 52 to 60. North Winds up to 10 Mph.

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Cottonwood Creek Ranch Airport Temperature Statistics

September Temperature

Ontario Municipal Airport (30.4 miles)

  • Lowest 11 September, 2025

    51.1 °F

  • Average September

    70.3 °F

  • Highest 4 September, 2025

    98.1 °F

Climate (2020–Present)

Ontario Municipal Airport (30.4 miles)

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  • Average Low 2020–2025

    42.6 °F

  • Average 2020–2025

    54.6 °F

  • Average High 2020–2025

    67.1 °F
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