John Zimmerman Park Weather Forecast

    • 56
    • 80

    Increasing Clouds

    • 56
    • 78

    Mostly Cloudy

    • 62
    • 77

    Mostly Cloudy

    • 61
    • 72

    Chance Rain Showers

    • 58
    • 69

    Rain Showers Likely

    • 55
    • 69

    Chance Rain Showers

Today 27 Oct Los Angeles County Inland Coast including Downtown Los Angeles

Areas of low Clouds and fog in the morning then sunny. Highs in the mid 70s to around 80.

Tonight 27 Oct Los Angeles County Inland Coast including Downtown Los Angeles

Partly cloudy early then low Clouds and fog. Lows in the mid 50s.

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John Zimmerman Park Temperature Statistics

October Temperature

Fullerton, Fullerton Municipal Airport (4.3 miles)

  • Lowest 13 October, 2026

    53.7 °F

  • Average October

    76.4 °F

  • Highest 3 October, 2026

    105.7 °F

Climate (2021–2026)

Fullerton, Fullerton Municipal Airport (4.3 miles)

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  • Average Low 2021–2026

    57.3 °F

  • Average 2021–2026

    66.8 °F

  • Average High 2021–2026

    77 °F
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