Fullerton Municipal Airport Weather Forecast

    • 61
    • 80

    Increasing Clouds

    • 59
    • 76

    Increasing Clouds

    • 60
    • 77

    Partly Sunny

    • 63
    • 80

    Mostly Cloudy

    • 63
    • 81

    Mostly Cloudy

    • 64
    • 83

    Partly Sunny

    • 64
    • 84

    Partly Sunny

Today 22 Jun Orange County Inland

Partly cloudy with patchy fog this morning. Becoming mostly sunny. Highs around 80. Light Winds becoming southwest 10 Mph this afternoon.

Tonight 22 Jun Orange County Inland

Mostly clear this evening. Becoming mostly cloudy. Lows 53 to 61. Areas of Winds south 10 Mph.

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Fullerton Municipal Airport Temperature Statistics

June Temperature

Fullerton, Fullerton Municipal Airport (0 miles)

  • Lowest 4 June, 2025

    61.6 °F

  • Average June

    71.3 °F

  • Highest 15 June, 2025

    91.7 °F

Climate (2020–Present)

Fullerton, Fullerton Municipal Airport (0 miles)

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  • Average Low 2020–2025

    56.8 °F

  • Average 2020–2025

    66.1 °F

  • Average High 2020–2025

    76.8 °F
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