La Bonita Park Weather Forecast

    • 69
    • 88

    Rain Showers Likely

    • 69
    • 83

    Rain Showers Likely

    • 70
    • 90

    Mostly Sunny

    • 71
    • 92

    Partly Sunny

    • 71
    • 95

    Mostly Sunny

    • 69
    • 93

    Mostly Sunny

    • 67
    • 89

    Mostly Sunny

Today 5 Sep Orange County Inland

Mostly sunny. Highs 83 to 86 towards the coast to 88 farther inland. Light Winds becoming southwest 10 Mph this afternoon.

Tonight 5 Sep Orange County Inland

Mostly clear this Evening, then mostly cloudy with a slight chance of Showers overnight. Lows 65 to 71. Light Winds. Chance of measurable precipitation 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

La Bonita Park Temperature Statistics

September Temperature

Fullerton, Fullerton Municipal Airport (4.3 miles)

  • Lowest 2 September, 2026

    63.6 °F

  • Average September

    74 °F

  • Highest 1 September, 2026

    85.6 °F

Climate (2021–2026)

Fullerton, Fullerton Municipal Airport (4.3 miles)

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  • Average Low 2021–2026

    57.1 °F

  • Average 2021–2026

    66.6 °F

  • Average High 2021–2026

    76.9 °F
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