Rancho San Joaquin Weather Forecast

    • 71
    • 94

    Patchy Fog

    • 71
    • 94

    Partly Sunny

    • 69
    • 91

    Mostly Sunny

    • 66
    • 84

    Mostly Sunny

    • 65
    • 82

    Partly Sunny

    • 67
    • 83

    Partly Sunny

Today 27 Aug Orange County Coastal

Patchy fog in the morning. Mostly cloudy. Highs 83 to 88 at the Beaches to 91 to 96 farther inland and near higher coastal Terrain. Light Winds becoming southwest 10 Mph in the afternoon.

Tonight 27 Aug Orange County Coastal

Mostly cloudy. Patchy fog overnight. Lows 68 to 72. Areas of Winds south 10 Mph in the evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Rancho San Joaquin Temperature Statistics

August Temperature

John Wayne-Orange County Airport (1.9 miles)

  • Lowest 5 August, 2026

    68.6 °F

  • Average August

    77.1 °F

  • Highest 23 August, 2026

    93.7 °F

Climate (2021–2026)

John Wayne-Orange County Airport (1.9 miles)

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  • Average Low 2021–2026

    59 °F

  • Average 2021–2026

    66.1 °F

  • Average High 2021–2026

    73.7 °F
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