Santiago Canyon Weather Forecast

    • 70
    • 99

    Hot

    • 69
    • 99

    Hot

    • 68
    • 98

    Hot

    • 65
    • 94

    Mostly Sunny

    • 62
    • 88

    Mostly Sunny

    • 61
    • 84

    Mostly Sunny

Today 26 Aug Orange County Inland

Mostly sunny. Highs 90 to 94 towards the coast to 100 farther inland. Light Winds becoming southwest 10 Mph this afternoon.

Tonight 26 Aug Orange County Inland

Partly cloudy. Patchy fog overnight. Lows 69 to 73. Areas of Winds south to 10 Mph this evening becoming light.

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Santiago Canyon Temperature Statistics

August Temperature

John Wayne-Orange County Airport (10.6 miles)

  • Lowest 5 August, 2026

    68.6 °F

  • Average August

    77.1 °F

  • Highest 23 August, 2026

    93.7 °F

Climate (2021–2026)

John Wayne-Orange County Airport (10.6 miles)

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  • Average Low 2021–2026

    59 °F

  • Average 2021–2026

    66.1 °F

  • Average High 2021–2026

    73.7 °F
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