Aliso Beach County Park Weather Forecast

    • 60
    • 79

    Mostly Sunny

    • 61
    • 79

    Mostly Sunny

    • 59
    • 79

    Mostly Sunny

    • 57
    • 75

    Mostly Cloudy

    • 57
    • 73

    Partly Sunny

    • 57
    • 73

    Partly Sunny

Today 18 Mar Orange County Coastal

Mostly sunny. Highs 78 to 83 at the Beaches to 85 to 89 farther inland and near higher coastal Terrain. Light Winds becoming southwest 10 Mph in the afternoon.

Tonight 18 Mar Orange County Coastal

Mostly clear. Lows 57 to 61. Areas of Winds south 10 Mph in the evening becoming light.

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Aliso Beach County Park Temperature Statistics

March Temperature

John Wayne-Orange County Airport (13 miles)

  • Lowest 6 March, 2026

    52 °F

  • Average March

    66.4 °F

  • Highest 12 March, 2026

    91 °F

Climate (2021–Present)

John Wayne-Orange County Airport (13 miles)

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  • Average Low 2021–2026

    58.9 °F

  • Average 2021–2026

    65.8 °F

  • Average High 2021–2026

    73.6 °F
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