Serrano Creek Park Weather Forecast

    • 64
    • 80

    Mostly Cloudy

    • 63
    • 77

    Mostly Cloudy

    • 65
    • 79

    Partly Sunny

    • 67
    • 86

    Mostly Sunny

    • 68
    • 88

    Mostly Sunny

    • 67
    • 88

    Partly Sunny

    • 67
    • 87

    Partly Sunny

Today 20 Sep Orange County Inland

Partly cloudy. Highs 83 to 86.

Tonight 20 Sep Orange County Inland

Partly cloudy this evening. Becoming mostly cloudy. Lows 59 to 66. Areas of Winds south 10 Mph this evening becoming light.

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Serrano Creek Park Temperature Statistics

September Temperature

John Wayne-Orange County Airport (9.9 miles)

  • Lowest 2 September, 2026

    65.6 °F

  • Average September

    77.1 °F

  • Highest 9 September, 2026

    102.7 °F

Climate (2021–2026)

John Wayne-Orange County Airport (9.9 miles)

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  • Average Low 2021–2026

    59.1 °F

  • Average 2021–2026

    66.2 °F

  • Average High 2021–2026

    73.8 °F
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