Santiago Canyon Weather Forecast

    • 52
    • 67

    Slight Chance Rain Showers

    • 55
    • 76

    Mostly Sunny

    • 58
    • 78

    Mostly Sunny

    • 56
    • 80

    Mostly Sunny

    • 55
    • 78

    Partly Sunny

    • 55
    • 76

    Mostly Cloudy

    • 55
    • 73

    Mostly Cloudy

Today 23 Oct Orange County Inland

Partly cloudy with a slight chance of Showers. Highs 71 to 74.

Tonight 23 Oct Orange County Inland

Partly cloudy with a slight chance of Showers this Evening, then mostly clear overnight. Lows 52 to 56. Light Winds. Chance of measurable precipitation 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Santiago Canyon Temperature Statistics

October Temperature

John Wayne-Orange County Airport (10.6 miles)

  • Lowest 13 October, 2026

    58.6 °F

  • Average October

    77.2 °F

  • Highest 3 October, 2026

    102.7 °F

Climate (2021–2026)

John Wayne-Orange County Airport (10.6 miles)

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  • Average Low 2021–2026

    59.2 °F

  • Average 2021–2026

    66.3 °F

  • Average High 2021–2026

    73.9 °F
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