South Whittier Weather Forecast

    • 59
    • 83

    Becoming Sunny

    • 61
    • 87

    Partly Sunny

    • 62
    • 87

    Partly Sunny

    • 59
    • 80

    Mostly Cloudy

    • 56
    • 72

    Slight Chance Rain

    • 56
    • 72

    Mostly Cloudy

Today 27 Mar Los Angeles County San Gabriel Valley

Areas of low Clouds and fog in the morning then sunny. Fog locally dense with visibility one quarter mile or less. Highs in the lower to mid 80s.

Tonight 27 Mar Los Angeles County San Gabriel Valley

Clear. Lows in the upper 50s to mid 60s.

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South Whittier Temperature Statistics

March Temperature

Fullerton, Fullerton Municipal Airport (5 miles)

  • Lowest 6 March, 2026

    50.6 °F

  • Average March

    69.5 °F

  • Highest 17 March, 2026

    100.7 °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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