Santa Ana River Mouth Weather Forecast

    • 71
    • 88

    Mostly Sunny

    • 70
    • 86

    Mostly Sunny

    • 69
    • 84

    Patchy Fog

    • 69
    • 80

    Partly Sunny

    • 67
    • 77

    Partly Sunny

    • 65
    • 74

    Partly Sunny

Today 6 Oct Orange County Coastal

Sunny. Highs 85 to 90 at the Beaches to 93 to 97 farther inland and near higher coastal Terrain. Light Winds becoming southwest 10 Mph this afternoon.

Tonight 6 Oct Orange County Coastal

Mostly clear. Lows around 70. Areas of Winds south to 10 Mph in the evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Santa Ana River Mouth Temperature Statistics

October Temperature

John Wayne-Orange County Airport (6.2 miles)

  • Lowest 1 October, 2026

    67.6 °F

  • Average October

    83.3 °F

  • Highest 3 October, 2026

    100.9 °F

Climate (2021–2026)

John Wayne-Orange County Airport (6.2 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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