Fullerton Municipal Airport Weather Forecast

    • 53
    • 65

    Rain Showers

    • 55
    • 66

    Mostly Cloudy

    • 54
    • 66

    Rain Showers Likely

    • 53
    • 64

    Rain Showers

    • 51
    • 64

    Chance Rain Showers

    • 48
    • 63

    Chance Rain Showers

Today 1 Jan Orange County Inland

Partly cloudy. A chance of Showers. Lows 50 to 55. Light Winds. Chance of measurable precipitation 30 percent.

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Fullerton Municipal Airport Temperature Statistics

January Temperature

Fullerton, Fullerton Municipal Airport (0 miles)

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Climate (2021–Present)

Fullerton, Fullerton Municipal Airport (0 miles)

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  • Average Low 2021–2025

    56.8 °F
  • Average 2021–2025

    66.1 °F
  • Average High 2021–2025

    76.4 °F
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