Santiago Park Weather Forecast

    • 51
    • 69

    Patchy Fog

    • 50
    • 70

    Patchy Fog

    • 52
    • 71

    Mostly Cloudy

    • 56
    • 68

    Rain Showers

    • 55
    • 66

    Rain Showers

    • 53
    • 66

    Rain Showers

Today 20 Dec Orange County Inland

Mostly cloudy with patchy fog in the morning. Becoming partly cloudy. Highs around 70. Light Winds.

Tonight 20 Dec Orange County Inland

Partly cloudy in the evening. Becoming mostly cloudy overnight with patchy fog. Lows around 51. Light Winds.

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  • Temperature Real-Time

Santiago Park Temperature Statistics

December Temperature

John Wayne-Orange County Airport (6.2 miles)

  • Lowest 6 December, 2025

    48 °F
  • Average December

    59.7 °F
  • Highest 9 December, 2025

    82 °F

Climate (2020–Present)

John Wayne-Orange County Airport (6.2 miles)

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  • Average Low 2020–2025

    58.7 °F
  • Average 2020–2025

    65.6 °F
  • Average High 2020–2025

    73.3 °F
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