Foothill Ranch Weather Forecast

    • 57
    • 80

    Sunny

    • 56
    • 79

    Mostly Sunny

    • 56
    • 78

    Mostly Sunny

    • 55
    • 79

    Mostly Sunny

    • 55
    • 77

    Mostly Sunny

    • 54
    • 75

    Partly Sunny

Today 14 Jan Orange County Inland

Mostly sunny. Highs 79 to 82. Areas of Winds northeast to 10 Mph becoming north with Gusts to 25 Mph in the afternoon.

Tonight 14 Jan Orange County Inland

Mostly clear. Lows around 55. Areas of Winds northeast 10 to 15 Mph with Gusts to 25 Mph.

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  • Temperature Real-Time

Foothill Ranch Temperature Statistics

January Temperature

John Wayne-Orange County Airport (11.2 miles)

  • Lowest 8 January, 2026

    48 °F

  • Average January

    60.3 °F

  • Highest 11 January, 2026

    73.9 °F

Climate (2021–Present)

John Wayne-Orange County Airport (11.2 miles)

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  • Average Low 2021–2026

    58.8 °F

  • Average 2021–2026

    65.7 °F

  • Average High 2021–2026

    73.3 °F
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