John Zimmerman Park Weather Forecast

    • 60
    • 71

    Rain

    • 54
    • 66

    Rain

    • 51
    • 69

    Mostly Sunny

    • 56
    • 75

    Mostly Sunny

    • 58
    • 79

    Patchy Fog

    • 59
    • 79

    Patchy Fog

    • 58
    • 79

    Mostly Cloudy

Today 13 Oct Los Angeles County Inland Coast including Downtown Los Angeles

Mostly cloudy in the morning then partly cloudy. Highs around 70. Southeast Winds around 15 Mph in the afternoon.

Tonight 13 Oct Los Angeles County Inland Coast including Downtown Los Angeles

A chance of rain with a slight chance of Thunderstorms in the Evening, then rain with a chance of Thunderstorms after midnight. Lows around 60. South Winds 15 to 25 Mph.

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John Zimmerman Park Temperature Statistics

October Temperature

Fullerton, Fullerton Municipal Airport (4.3 miles)

  • Lowest 9 October, 2025

    57.9 °F

  • Average October

    68.5 °F

  • Highest 10 October, 2025

    86 °F

Climate (2020–Present)

Fullerton, Fullerton Municipal Airport (4.3 miles)

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  • Average Low 2020–2025

    56.7 °F

  • Average 2020–2025

    66.1 °F

  • Average High 2020–2025

    76.6 °F
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