Guadalupe Park Weather Forecast

    • 52
    • 66

    Increasing Clouds

    • 45
    • 65

    Partly Sunny

    • 48
    • 67

    Mostly Cloudy

    • 47
    • 70

    Partly Sunny

    • 50
    • 72

    Partly Sunny

    • 50
    • 73

    Mostly Cloudy

Today 23 Jan Orange County Inland

Partly cloudy. Highs 65 to 68. Light Winds becoming west 10 Mph this afternoon.

Tonight 23 Jan Orange County Inland

Partly cloudy in the evening. Becoming mostly cloudy. Lows around 51. Areas of Winds west 10 Mph in the evening becoming light.

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  • Temperature Real-Time

Guadalupe Park Temperature Statistics

January Temperature

Fullerton, Fullerton Municipal Airport (3.7 miles)

  • Lowest 9 January, 2026

    42.1 °F

  • Average January

    62.5 °F

  • Highest 14 January, 2026

    84.9 °F

Climate (2021–Present)

Fullerton, Fullerton Municipal Airport (3.7 miles)

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  • Average Low 2021–2026

    56.9 °F

  • Average 2021–2026

    66.1 °F

  • Average High 2021–2026

    76.4 °F
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