South Whittier Weather Forecast

    • 45
    • 61

    Becoming Sunny

    • 45
    • 65

    Mostly Cloudy

    • 48
    • 67

    Mostly Cloudy

    • 49
    • 69

    Patchy Fog

    • 49
    • 69

    Mostly Cloudy

    • 50
    • 65

    Chance Rain

Today 30 Jan Los Angeles County San Gabriel Valley

Sunny after morning low Clouds. Highs in the mid 50s to around 60.

Tonight 30 Jan Los Angeles County San Gabriel Valley

Mostly clear. Lows in the lower to mid 40s.

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South Whittier Temperature Statistics

January Temperature

Fullerton, Fullerton Municipal Airport (5 miles)

  • Lowest 14 January, 2025

    39.7 °F

  • Average January

    57.7 °F

  • Highest 23 January, 2025

    83.6 °F

Climate (2020–Present)

Fullerton, Fullerton Municipal Airport (5 miles)

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  • Average Low 2020–2025

    56.8 °F

  • Average 2020–2025

    66.1 °F

  • Average High 2020–2025

    76.9 °F
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