Santiago Park Weather Forecast

    • 68
    • 89

    Mostly Sunny

    • 69
    • 92

    Mostly Sunny

    • 69
    • 89

    Mostly Sunny

    • 67
    • 86

    Mostly Sunny

    • 67
    • 87

    Mostly Sunny

    • 68
    • 87

    Mostly Sunny

Today 31 Jul Orange County Inland

Partly cloudy with patchy fog this morning. Becoming mostly sunny. Highs 84 to 88 towards the coast to 91 to 94 farther inland. Light Winds becoming southwest 10 Mph this afternoon.

Tonight 31 Jul Orange County Inland

Mostly clear in the evening. Becoming partly cloudy overnight with patchy fog. Lows 64 to 69. Areas of Winds south to 10 Mph in the evening becoming light.

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Santiago Park Temperature Statistics

July Temperature

John Wayne-Orange County Airport (6.2 miles)

  • Lowest 3 July, 2026

    62.7 °F

  • Average July

    74.1 °F

  • Highest 15 July, 2026

    86.6 °F

Climate (2021–2026)

John Wayne-Orange County Airport (6.2 miles)

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  • Average Low 2021–2026

    59 °F

  • Average 2021–2026

    66 °F

  • Average High 2021–2026

    73.7 °F
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