Gilbert Park Weather Forecast

    • 47
    • 70

    Mostly Sunny

    • 47
    • 71

    Mostly Sunny

    • 49
    • 71

    Mostly Sunny

    • 50
    • 70

    Mostly Sunny

    • 52
    • 73

    Mostly Sunny

    • 56
    • 77

    Mostly Sunny

Today 3 Dec Orange County Inland

Partly cloudy this morning. Becoming mostly sunny. Highs 66 to 71. Areas of Winds east to 10 Mph with Gusts to 25 Mph becoming southwest with Gusts to 30 Mph this afternoon.

Tonight 3 Dec Orange County Inland

Mostly clear. Lows 45 to 48. Areas of Winds northeast 15 to 25 Mph. Gusts to 35 Mph. Becoming 45 Mph overnight.

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Gilbert Park Temperature Statistics

December Temperature

Fullerton, Fullerton Municipal Airport (1.2 miles)

  • Lowest 1 December, 2025

    51.1 °F

  • Average December

    59.3 °F

  • Highest 1 December, 2025

    72 °F

Climate (2020–Present)

Fullerton, Fullerton Municipal Airport (1.2 miles)

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  • Average Low 2020–2025

    56.8 °F

  • Average 2020–2025

    66 °F

  • Average High 2020–2025

    76.5 °F
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