Convention Center Weather Forecast

    • 57
    • 67

    Slight Chance Rain

    • 58
    • 69

    Partly Sunny

    • 57
    • 72

    Partly Sunny

    • 58
    • 73

    Mostly Sunny

    • 60
    • 77

    Mostly Sunny

    • 60
    • 78

    Mostly Sunny

Today 27 May Orange County Inland

Mostly cloudy with a chance of rain this Morning, then partly cloudy this afternoon. Highs around 67 towards the coast to 64 to 67 farther inland. Areas of Winds south 10 to 15 Mph with Gusts to 25 Mph. Chance of measurable precipitation 40 percent.

Tonight 27 May Orange County Inland

Partly cloudy in the evening. Becoming mostly cloudy. Lows 50 to 58. Areas of Winds southwest 10 to 15 Mph in the evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Convention Center Temperature Statistics

May Temperature

Fullerton, Fullerton Municipal Airport (6.2 miles)

  • Lowest 6 May, 2026

    55.7 °F

  • Average May

    67.9 °F

  • Highest 19 May, 2026

    89.7 °F

Climate (2021–Present)

Fullerton, Fullerton Municipal Airport (6.2 miles)

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  • Average Low 2021–2026

    57 °F

  • Average 2021–2026

    66.4 °F

  • Average High 2021–2026

    76.8 °F
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