Buena Park Weather Forecast

    • 72
    • 92

    Slight Chance Rain Showers

    • 74
    • 97

    Hot

    • 73
    • 97

    Hot

    • 71
    • 95

    Mostly Sunny

    • 68
    • 87

    Mostly Sunny

    • 66
    • 84

    Mostly Sunny

    • 67
    • 84

    Sunny

Today 7 Sep Orange County Inland

Partly cloudy with a slight chance of Showers and Thunderstorms. Warmer. Highs 89 to 93. Light Winds becoming west 10 Mph this afternoon. Chance of measurable precipitation 20 percent.

Tonight 7 Sep Orange County Inland

Partly cloudy. Lows 69 to 73. Areas of Winds west to 10 Mph this evening becoming light.

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  • Temperature Real-Time

Buena Park Temperature Statistics

September Temperature

Fullerton, Fullerton Municipal Airport (0.6 miles)

  • Lowest 2 September, 2026

    63.6 °F

  • Average September

    74.9 °F

  • Highest 5 September, 2026

    89.1 °F

Climate (2021–2026)

Fullerton, Fullerton Municipal Airport (0.6 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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