Fullerton Weather Forecast

    • 51
    • 67

    Mostly Sunny

    • 54
    • 74

    Sunny

    • 55
    • 76

    Mostly Sunny

    • 51
    • 73

    Partly Sunny

    • 50
    • 69

    Partly Sunny

    • 46
    • 64

    Partly Sunny

Today 24 Nov Los Angeles County San Gabriel Valley

Areas of low Clouds and fog in the morning then sunny. Highs in the mid to upper 60s.

Tonight 24 Nov Los Angeles County San Gabriel Valley

Clear in the evening then partly cloudy. Lows in the mid 40s to lower 50s.

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Fullerton Temperature Statistics

November Temperature

Fullerton, Fullerton Municipal Airport (6.2 miles)

  • Lowest 19 November, 2025

    46.9 °F

  • Average November

    62 °F

  • Highest 10 November, 2025

    86 °F

Climate (2020–Present)

Fullerton, Fullerton Municipal Airport (6.2 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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