Adventure Park Weather Forecast

    • 64
    • 78

    Gradual Clearing

    • 64
    • 79

    Mostly Sunny

    • 65
    • 81

    Mostly Sunny

    • 66
    • 85

    Mostly Sunny

    • 65
    • 84

    Partly Sunny

    • 64
    • 82

    Mostly Sunny

Today 16 Sep Los Angeles County San Gabriel Valley

Low Clouds and fog with drizzle in the morning then sunny. Highs in the mid 70s to mid 80s.

Tonight 16 Sep Los Angeles County San Gabriel Valley

Mostly cloudy. Lows in the upper 50s to mid 60s.

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Adventure Park Temperature Statistics

September Temperature

Fullerton, Fullerton Municipal Airport (5.6 miles)

  • Lowest 2 September, 2026

    63.6 °F

  • Average September

    79.3 °F

  • Highest 9 September, 2026

    108.6 °F

Climate (2021–2026)

Fullerton, Fullerton Municipal Airport (5.6 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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