Pioneer Park Weather Forecast

    • 54
    • 68

    Slight Chance Rain Showers

    • 54
    • 69

    Partly Sunny

    • 54
    • 76

    Partly Sunny

    • 56
    • 77

    Partly Sunny

    • 55
    • 76

    Mostly Sunny

    • 57
    • 79

    Partly Sunny

Today 26 Apr Orange County Inland

Cloudy with a chance of Showers this Morning, then partly cloudy this afternoon. Highs 65 to 68. Areas of Winds west 10 to 15 Mph. Gusts to 25 Mph this afternoon. Chance of measurable precipitation 50 percent.

Tonight 26 Apr Orange County Inland

Mostly cloudy. A slight chance of Showers overnight. Lows 49 to 55. Areas of Winds west 10 to 15 Mph. Chance of measurable precipitation 20 percent.

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Pioneer Park Temperature Statistics

April Temperature

Fullerton, Fullerton Municipal Airport (6.2 miles)

  • Lowest 4 April, 2026

    52.6 °F

  • Average April

    67.3 °F

  • Highest 4 April, 2026

    91.7 °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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