Santa Ana River Mouth Weather Forecast

    • 58
    • 71

    Increasing Clouds

    • 59
    • 71

    Partly Sunny

    • 59
    • 72

    Partly Sunny

    • 58
    • 70

    Mostly Cloudy

    • 58
    • 69

    Chance Rain Showers

    • 56
    • 67

    Chance Rain Showers

Today 6 Apr Orange County Coastal

Partly cloudy with patchy fog this morning. Becoming mostly sunny. Highs 69 to 72 at the Beaches to 73 to 77 farther inland and near higher coastal Terrain. Light Winds becoming southwest 10 to 15 Mph this afternoon.

Tonight 6 Apr Orange County Coastal

Mostly clear in the evening. Becoming mostly cloudy overnight with patchy fog. Lows 54 to 57. Areas of Winds southwest 10 Mph in the evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Santa Ana River Mouth Temperature Statistics

April Temperature

John Wayne-Orange County Airport (6.2 miles)

  • Lowest 4 April, 2026

    55 °F

  • Average April

    68.8 °F

  • Highest 4 April, 2026

    84.9 °F

Climate (2021–Present)

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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