Santa Ana River Mouth Weather Forecast

    • 58
    • 72

    Patchy Fog

    • 59
    • 75

    Partly Sunny

    • 60
    • 76

    Partly Sunny

    • 59
    • 76

    Partly Sunny

    • 59
    • 76

    Partly Sunny

    • 60
    • 77

    Mostly Cloudy

Today 22 Mar Orange County Coastal

Partly cloudy with patchy fog in the morning. Becoming mostly sunny. Highs around 73 at the Beaches to 77 to 81 farther inland and near higher coastal Terrain. Light Winds becoming southwest 10 Mph in the afternoon.

Tonight 22 Mar Orange County Coastal

Mostly clear in the evening. Becoming partly cloudy. Patchy fog. Lows around 57. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Santa Ana River Mouth Temperature Statistics

March Temperature

John Wayne-Orange County Airport (6.2 miles)

  • Lowest 6 March, 2026

    52 °F

  • Average March

    69 °F

  • Highest 17 March, 2026

    95.6 °F

Climate (2021–Present)

John Wayne-Orange County Airport (6.2 miles)

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  • Average Low 2021–2026

    58.9 °F

  • Average 2021–2026

    65.9 °F

  • Average High 2021–2026

    73.6 °F
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