Santiago Canyon Weather Forecast

    • 72
    • 99

    Hot

    • 71
    • 98

    Hot

    • 68
    • 97

    Hot

    • 67
    • 95

    Mostly Sunny

    • 66
    • 92

    Mostly Sunny

    • 62
    • 85

    Partly Sunny

Today 5 Oct Orange County Inland

Sunny, hot. Highs 99 to 103. Areas of Winds northwest to 10 Mph.

Tonight 5 Oct Orange County Inland

Clear. Lows 72 to 75. Areas of Winds west 10 Mph with Gusts to 25 Mph this evening becoming light.

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Santiago Canyon Temperature Statistics

October Temperature

John Wayne-Orange County Airport (10.6 miles)

  • Lowest 2 October, 2026

    66.9 °F
  • Average October

    80.7 °F
  • Highest 3 October, 2026

    100.9 °F

Climate (2021–2026)

John Wayne-Orange County Airport (10.6 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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