Foothill Ranch Weather Forecast

    • 57
    • 80

    Decreasing Clouds

    • 59
    • 82

    Mostly Sunny

    • 59
    • 85

    Mostly Sunny

    • 56
    • 78

    Partly Sunny

    • 55
    • 77

    Mostly Sunny

    • 56
    • 77

    Mostly Sunny

Today 9 May Orange County Inland

Partly cloudy with patchy fog in the morning. Becoming mostly sunny. Highs 74 to 77 towards the coast to 81 farther inland. Areas of Winds south 10 Mph.

Tonight 9 May Orange County Inland

Partly cloudy. Patchy fog overnight. Lows 55 to 58. Areas of Winds south 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

    55.9 °F

  • Average May

    64.5 °F

  • Highest 1 May, 2026

    72.6 °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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