Casa De Santiago Weather Forecast

    • 50
    • 76

    Increasing Clouds

    • 53
    • 70

    Mostly Cloudy

    • 52
    • 68

    Mostly Cloudy

    • 51
    • 68

    Mostly Cloudy

    • 50
    • 71

    Mostly Sunny

    • 51
    • 74

    Partly Sunny

Today 20 Jan Orange County Inland

Partly cloudy in the morning. Becoming mostly sunny. Highs around 74 towards the coast to 75 to 78 farther inland. Areas of Winds east to 10 Mph in the morning becoming light.

Tonight 20 Jan Orange County Inland

Mostly clear in the evening. Becoming partly cloudy overnight with patchy fog. Lows 49 to 52. Light Winds.

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Casa De Santiago Temperature Statistics

January Temperature

John Wayne-Orange County Airport (6.2 miles)

  • Lowest 8 January, 2026

    48 °F

  • Average January

    61 °F

  • Highest 14 January, 2026

    82 °F

Climate (2021–Present)

John Wayne-Orange County Airport (6.2 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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