Tustin Weather Forecast

    • 51
    • 68

    Increasing Clouds

    • 49
    • 69

    Partly Sunny

    • 48
    • 73

    Mostly Sunny

    • 49
    • 70

    Mostly Sunny

    • 50
    • 71

    Mostly Sunny

    • 52
    • 72

    Mostly Sunny

Today 2 Dec Orange County Inland

Partly cloudy. Highs around 68. Light Winds becoming southwest 10 Mph this afternoon.

Tonight 2 Dec Orange County Inland

Mostly cloudy. Lows 46 to 51. Light Winds.

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Tustin Temperature Statistics

December Temperature

John Wayne-Orange County Airport (5 miles)

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Climate (2020–Present)

John Wayne-Orange County Airport (5 miles)

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  • Average Low 2020–2025

    58.7 °F

  • Average 2020–2025

    65.6 °F

  • Average High 2020–2025

    73.4 °F
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