La Mirada Creek Park Weather Forecast

    • 61
    • 82

    Increasing Clouds

    • 63
    • 85

    Patchy Fog

    • 63
    • 83

    Patchy Fog

    • 64
    • 81

    Partly Sunny

    • 66
    • 81

    Mostly Sunny

    • 68
    • 88

    Mostly Sunny

    • 69
    • 89

    Mostly Sunny

Today 18 Sep Los Angeles County San Gabriel Valley

Partly cloudy in the morning then sunny. Highs around 90.

Tonight 18 Sep Los Angeles County San Gabriel Valley

Mostly clear. Lows around 60.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

La Mirada Creek Park Temperature Statistics

September Temperature

Fullerton, Fullerton Municipal Airport (3.1 miles)

  • Lowest 2 September, 2026

    63.6 °F

  • Average September

    78.7 °F

  • Highest 9 September, 2026

    108.6 °F

Climate (2021–2026)

Fullerton, Fullerton Municipal Airport (3.1 miles)

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  • Average Low 2021–2026

    57.1 °F

  • Average 2021–2026

    66.7 °F

  • Average High 2021–2026

    76.9 °F
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