South Lake Weather Forecast

    • 66
    • 82

    Mostly Cloudy

    • 66
    • 83

    Partly Sunny

    • 71
    • 86

    Mostly Sunny

Today 12 Jul Orange County Inland

Partly cloudy. Highs 79 to 84 towards the coast to 84 to 87 farther inland. Light Winds becoming southwest 10 Mph in the afternoon.

Tonight 12 Jul Orange County Inland

Partly cloudy. Patchy dense fog overnight. Lows 62 to 68. Areas of Winds southwest to 10 Mph in the evening becoming light.

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South Lake Temperature Statistics

July Temperature

John Wayne-Orange County Airport (3.1 miles)

  • Lowest 3 July, 2026

    62.7 °F

  • Average July

    71.2 °F

  • Highest 4 July, 2026

    80.7 °F

Climate (2021–2026)

John Wayne-Orange County Airport (3.1 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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