Convention Center Weather Forecast

    • 69
    • 90

    Becoming Sunny

    • 70
    • 89

    Mostly Sunny

    • 70
    • 90

    Partly Sunny

    • 71
    • 90

    Mostly Sunny

    • 71
    • 90

    Mostly Sunny

    • 71
    • 91

    Mostly Sunny

Today 19 Aug Orange County Inland

Partly cloudy with patchy fog this morning. Becoming sunny. Highs 85 to 88 towards the coast to 91 to 95 farther inland. Light Winds becoming southwest 10 Mph this afternoon.

Tonight 19 Aug Orange County Inland

Mostly clear in the evening. Becoming partly cloudy overnight with patchy fog. Lows 63 to 69. Areas of Winds south 10 Mph in the evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Convention Center Temperature Statistics

August Temperature

Fullerton, Fullerton Municipal Airport (6.2 miles)

  • Lowest 17 August, 2026

    66 °F

  • Average August

    79.6 °F

  • Highest 8 August, 2026

    97.6 °F

Climate (2021–2026)

Fullerton, Fullerton Municipal Airport (6.2 miles)

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  • Average Low 2021–2026

    57 °F

  • Average 2021–2026

    66.5 °F

  • Average High 2021–2026

    76.8 °F
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