South Lake Weather Forecast

    • 56
    • 73

    Increasing Clouds

    • 57
    • 74

    Mostly Cloudy

    • 56
    • 74

    Mostly Cloudy

    • 57
    • 74

    Partly Sunny

    • 57
    • 72

    Mostly Sunny

    • 58
    • 75

    Mostly Sunny

    • 59
    • 79

    Partly Sunny

Today 13 May Orange County Inland

Mostly cloudy this morning. Becoming mostly sunny. Patchy fog this morning. Highs 71 to 75. Areas of Winds south to 10 Mph.

Tonight 13 May Orange County Inland

Partly cloudy this evening. Becoming cloudy. Lows 51 to 56. Areas of Winds southwest 10 Mph this evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

South Lake Temperature Statistics

May Temperature

John Wayne-Orange County Airport (3.1 miles)

  • Lowest 6 May, 2026

    56.6 °F

  • Average May

    65.5 °F

  • Highest 11 May, 2026

    73.9 °F

Climate (2021–Present)

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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