Pioneer Park Weather Forecast

    • 73
    • 101

    Hot

    • 71
    • 97

    Hot

    • 70
    • 97

    Hot

    • 68
    • 93

    Mostly Sunny

    • 66
    • 86

    Partly Sunny

    • 62
    • 79

    Chance Rain Showers

Today 6 Oct Orange County Inland

Sunny, hot. Highs 97 to 101. Light Winds becoming southwest 10 Mph this afternoon.

Tonight 6 Oct Orange County Inland

Clear. Lows 69 to 72. Light Winds.

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Pioneer Park Temperature Statistics

October Temperature

Fullerton, Fullerton Municipal Airport (6.2 miles)

  • Lowest 2 October, 2026

    65.6 °F

  • Average October

    84.8 °F

  • Highest 2 October, 2026

    104.6 °F

Climate (2021–2026)

Fullerton, Fullerton Municipal Airport (6.2 miles)

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  • Average Low 2021–2026

    57.2 °F

  • Average 2021–2026

    66.7 °F

  • Average High 2021–2026

    76.9 °F
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