Foothill Ranch Weather Forecast

    • 77
    • 102

    Hot

    • 76
    • 101

    Hot

    • 76
    • 101

    Hot

    • 75
    • 98

    Hot

    • 73
    • 97

    Hot

    • 71
    • 96

    Mostly Sunny

Today 3 Oct Orange County Inland

Mostly sunny. Hot. Highs 101 to 104. Areas of Winds east 10 to 15 Mph with Gusts to 30 Mph becoming south with Gusts to 25 Mph this afternoon.

Tonight 3 Oct Orange County Inland

Mostly clear. Lows 74 to 78. Light Winds becoming east 10 Mph overnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Foothill Ranch Temperature Statistics

October Temperature

John Wayne-Orange County Airport (11.2 miles)

  • Lowest 1 October, 2026

    66.9 °F

  • Average October

    73.1 °F

  • Highest 1 October, 2026

    81 °F

Climate (2021–2026)

John Wayne-Orange County Airport (11.2 miles)

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  • Average Low 2021–2026

    59.1 °F

  • Average 2021–2026

    66.2 °F

  • Average High 2021–2026

    73.8 °F
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