Rancho San Joaquin Weather Forecast

    • 57
    • 70

    Increasing Clouds

    • 57
    • 69

    Partly Sunny

    • 57
    • 72

    Partly Sunny

    • 57
    • 74

    Mostly Sunny

    • 58
    • 78

    Mostly Sunny

    • 59
    • 79

    Mostly Sunny

Today 15 May Orange County Coastal

Cloudy this morning. Becoming mostly sunny. Highs 65 to 70. Areas of Winds south 10 Mph.

Tonight 15 May Orange County Coastal

Partly cloudy in the evening. Becoming cloudy. Lows 54 to 57. Areas of Winds south 10 Mph.

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  • Temperature Real-Time

Rancho San Joaquin Temperature Statistics

May Temperature

John Wayne-Orange County Airport (1.9 miles)

  • Lowest 6 May, 2026

    56.6 °F

  • Average May

    65.6 °F

  • Highest 11 May, 2026

    75.7 °F

Climate (2021–Present)

John Wayne-Orange County Airport (1.9 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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