Rancho San Joaquin Weather Forecast

    • 57
    • 76

    Patchy Fog

    • 58
    • 77

    Partly Sunny

    • 58
    • 80

    Mostly Sunny

    • 57
    • 77

    Partly Sunny

    • 57
    • 75

    Mostly Sunny

    • 57
    • 75

    Mostly Sunny

Today 9 May Orange County Coastal

Patchy fog this morning. Partly cloudy. Highs 67 to 71 at the Beaches to 72 to 77 farther inland and near higher coastal Terrain. Areas of Winds south 10 to 15 Mph.

Tonight 9 May Orange County Coastal

Partly cloudy in the evening. Becoming mostly cloudy overnight with patchy fog. Lows around 56. 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

May Temperature

John Wayne-Orange County Airport (1.9 miles)

  • Lowest 6 May, 2026

    56.6 °F

  • Average May

    64.5 °F

  • Highest 1 May, 2026

    72.6 °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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