South Whittier Weather Forecast

    • 56
    • 71

    Gradual Clearing

    • 57
    • 75

    Partly Sunny

    • 57
    • 76

    Partly Sunny

    • 57
    • 76

    Mostly Sunny

    • 57
    • 76

    Mostly Sunny

    • 58
    • 80

    Partly Sunny

Today 13 May Los Angeles County San Gabriel Valley

Cloudy this Morning, becoming partly cloudy. Highs in the mid 70s.

Tonight 13 May Los Angeles County San Gabriel Valley

Mostly clear in the Evening, becoming partly cloudy. Lows in the lower 50s.

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South Whittier Temperature Statistics

May Temperature

Fullerton, Fullerton Municipal Airport (5 miles)

  • Lowest 6 May, 2026

    55.7 °F

  • Average May

    66.5 °F

  • Highest 9 May, 2026

    77.6 °F

Climate (2021–Present)

Fullerton, Fullerton Municipal Airport (5 miles)

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  • Average Low 2021–2026

    57 °F

  • Average 2021–2026

    66.4 °F

  • Average High 2021–2026

    76.8 °F
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