Sycamore Park Weather Forecast

    • 55
    • 78

    Mostly Sunny

    • 53
    • 76

    Partly Sunny

    • 54
    • 75

    Mostly Cloudy

    • 54
    • 76

    Patchy Fog

    • 54
    • 77

    Mostly Sunny

    • 55
    • 76

    Partly Sunny

Today 11 Dec Orange County Inland

Mostly sunny. Highs 76 to 79 towards the coast to 80 to 83 farther inland. Light Winds.

Tonight 11 Dec Orange County Inland

Mostly clear this evening. Becoming partly cloudy. Patchy fog overnight. Lows 52 to 55. Light Winds.

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  • Temperature Real-Time

Sycamore Park Temperature Statistics

December Temperature

John Wayne-Orange County Airport (11.2 miles)

  • Lowest 6 December, 2025

    48 °F

  • Average December

    60.2 °F

  • Highest 9 December, 2025

    82 °F

Climate (2020–Present)

John Wayne-Orange County Airport (11.2 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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