Fullerton Weather Forecast

    • 54
    • 72

    Increasing Clouds

    • 55
    • 73

    Decreasing Clouds

    • 58
    • 80

    Mostly Sunny

    • 58
    • 81

    Mostly Sunny

    • 59
    • 83

    Patchy Fog

    • 60
    • 82

    Mostly Cloudy

    • 58
    • 75

    Mostly Cloudy

Today 5 Nov Orange County Inland

Partly cloudy. Highs 69 to 72. Light Winds becoming west 10 Mph this afternoon.

Tonight 5 Nov Orange County Inland

Partly cloudy. Lows 50 to 55. Light Winds.

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Fullerton Temperature Statistics

November Temperature

Fullerton, Fullerton Municipal Airport (3.1 miles)

  • Lowest 3 November, 2025

    57 °F

  • Average November

    63.8 °F

  • Highest 1 November, 2025

    75 °F

Climate (2020–Present)

Fullerton, Fullerton Municipal Airport (3.1 miles)

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  • Average Low 2020–2025

    56.7 °F

  • Average 2020–2025

    66 °F

  • Average High 2020–2025

    76.5 °F
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