Guadalupe Park Weather Forecast

    • 55
    • 73

    Sunny

    • 60
    • 82

    Sunny

    • 65
    • 89

    Sunny

    • 69
    • 93

    Mostly Sunny

    • 68
    • 90

    Sunny

    • 66
    • 89

    Sunny

Today 13 Oct Orange County Inland

Mostly sunny. Highs 70 to 74. Light Winds becoming southwest 10 Mph this afternoon.

Tonight 13 Oct Orange County Inland

Clear. Lows 52 to 58. Light Winds becoming northeast 10 Mph overnight.

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Guadalupe Park Temperature Statistics

October Temperature

Fullerton, Fullerton Municipal Airport (3.7 miles)

  • Lowest 11 October, 2026

    62.1 °F

  • Average October

    81.9 °F

  • Highest 3 October, 2026

    105.7 °F

Climate (2021–2026)

Fullerton, Fullerton Municipal Airport (3.7 miles)

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  • Average Low 2021–2026

    57.2 °F

  • Average 2021–2026

    66.8 °F

  • Average High 2021–2026

    77 °F
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