Convention Center Weather Forecast

    • 61
    • 76

    Rain Showers

    • 57
    • 70

    Rain Showers

    • 56
    • 70

    Mostly Sunny

    • 58
    • 76

    Mostly Sunny

    • 59
    • 80

    Partly Sunny

    • 59
    • 82

    Mostly Sunny

    • 59
    • 81

    Partly Sunny

Today 21 Oct Orange County Inland

Partly cloudy. Highs around 80.

Tonight 21 Oct Orange County Inland

Showers. A slight chance of Thunderstorms this Evening, then scattered Thunderstorms overnight. Lows 57 to 61. Areas of Winds south 10 Mph this evening becoming light.

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Convention Center Temperature Statistics

October Temperature

Fullerton, Fullerton Municipal Airport (6.2 miles)

  • Lowest 13 October, 2026

    53.7 °F

  • Average October

    78.2 °F

  • Highest 3 October, 2026

    105.7 °F

Climate (2021–2026)

Fullerton, Fullerton Municipal Airport (6.2 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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