La Mirada Creek Park Weather Forecast

    • 68
    • 86

    Rain Showers Likely

    • 66
    • 82

    Chance Rain Showers

    • 65
    • 84

    Patchy Fog

    • 66
    • 83

    Mostly Cloudy

    • 68
    • 86

    Patchy Fog

    • 67
    • 86

    Mostly Sunny

Today 18 Sep Los Angeles County San Gabriel Valley

Showers with a slight chance of Thunderstorms in the Morning, then Showers likely with a chance of Thunderstorms in the afternoon. Some Thunderstorms may produce heavy rainfall. Highs in the lower to mid 80s.

Tonight 18 Sep Los Angeles County San Gabriel Valley

Mostly cloudy with a chance of Showers and a slight chance of Thunderstorms. Some Thunderstorms may produce heavy rainfall. Lows in the mid 60s to around 70. Chance of precipitation 50 percent.

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La Mirada Creek Park Temperature Statistics

September Temperature

Fullerton, Fullerton Municipal Airport (3.1 miles)

  • Lowest 11 September, 2025

    64.9 °F

  • Average September

    74.6 °F

  • Highest 2 September, 2025

    97 °F

Climate (2020–Present)

Fullerton, Fullerton Municipal Airport (3.1 miles)

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  • Average Low 2020–2025

    56.8 °F

  • Average 2020–2025

    66.1 °F

  • Average High 2020–2025

    76.7 °F
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