Santiago Canyon Weather Forecast

    • 57
    • 71

    Chance Rain Showers

    • 55
    • 68

    Chance Rain Showers

    • 55
    • 68

    Rain Showers

    • 50
    • 66

    Chance Rain Showers

    • 53
    • 71

    Mostly Sunny

    • 53
    • 74

    Mostly Sunny

    • 52
    • 72

    Partly Sunny

Today 29 Oct Orange County Inland

Partly cloudy. Highs 72 to 75.

Tonight 29 Oct Orange County Inland

Cloudy. A slight chance of Showers overnight. Lows 57 to 61. Light Winds. Chance of measurable precipitation 20 percent.

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Santiago Canyon Temperature Statistics

October Temperature

John Wayne-Orange County Airport (10.6 miles)

  • Lowest 13 October, 2026

    58.6 °F

  • Average October

    75.2 °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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