Foothill Ranch Weather Forecast

    • 58
    • 76

    Sunny

    • 60
    • 81

    Mostly Sunny

    • 58
    • 79

    Mostly Sunny

    • 57
    • 77

    Partly Sunny

    • 58
    • 79

    Mostly Sunny

    • 58
    • 79

    Mostly Sunny

Today 30 May Orange County Inland

Mostly sunny. Highs around 75 towards the coast to 76 to 79 farther inland. Light Winds becoming southwest 10 Mph this afternoon.

Tonight 30 May Orange County Inland

Clear in the evening. Becoming partly cloudy. Lows 55 to 60. Areas of Winds southwest 10 Mph in the evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Foothill Ranch Temperature Statistics

May Temperature

John Wayne-Orange County Airport (11.2 miles)

  • Lowest 6 May, 2026

    56.6 °F

  • Average May

    66.3 °F

  • Highest 20 May, 2026

    82.7 °F

Climate (2021–Present)

John Wayne-Orange County Airport (11.2 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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