South Lake Weather Forecast

    • 65
    • 87

    Sunny

    • 64
    • 82

    Mostly Sunny

    • 61
    • 80

    Chance Rain Showers

    • 60
    • 76

    Rain Showers

    • 57
    • 71

    Rain Showers Likely

    • 57
    • 72

    Mostly Sunny

    • 60
    • 79

    Mostly Sunny

Today 18 Oct Orange County Inland

Partly cloudy. Highs 75 to 78.

Tonight 18 Oct Orange County Inland

Clear. Lows 59 to 64. Areas of Winds west to 10 Mph this evening becoming light.

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  • Temperature Real-Time

South Lake Temperature Statistics

October Temperature

John Wayne-Orange County Airport (3.1 miles)

  • Lowest 13 October, 2026

    58.6 °F

  • Average October

    78.5 °F

  • Highest 3 October, 2026

    102.7 °F

Climate (2021–2026)

John Wayne-Orange County Airport (3.1 miles)

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  • Average Low 2021–2026

    59.2 °F

  • Average 2021–2026

    66.3 °F

  • Average High 2021–2026

    73.9 °F
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