Santa Ana Heights Weather Forecast

    • 59
    • 79

    Mostly Sunny

    • 58
    • 77

    Mostly Sunny

    • 59
    • 77

    Partly Sunny

    • 58
    • 73

    Patchy Fog

    • 57
    • 70

    Patchy Fog

    • 59
    • 73

    Patchy Fog

Today 18 Oct Orange County Coastal

Mostly sunny. Highs 73 to 76 at the Beaches to 80 farther inland and near higher coastal Terrain. Light Winds becoming west 10 Mph in the afternoon.

Tonight 18 Oct Orange County Coastal

Mostly clear in the evening. Becoming partly cloudy overnight with patchy fog. Lows around 60. Light Winds.

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Santa Ana Heights Temperature Statistics

October Temperature

John Wayne-Orange County Airport (1.9 miles)

  • Lowest 15 October, 2025

    57 °F

  • Average October

    66.7 °F

  • Highest 10 October, 2025

    78.1 °F

Climate (2020–Present)

John Wayne-Orange County Airport (1.9 miles)

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  • Average Low 2020–2025

    58.6 °F

  • Average 2020–2025

    65.6 °F

  • Average High 2020–2025

    73.4 °F
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