Tustin Weather Forecast

    • 50
    • 65

    Mostly Sunny

    • 51
    • 70

    Sunny

    • 50
    • 74

    Mostly Sunny

    • 52
    • 74

    Sunny

    • 54
    • 76

    Mostly Sunny

    • 56
    • 78

    Mostly Sunny

Today 9 Jan Orange County Inland

Areas of blowing dust in the morning. Mostly sunny. Highs 63 to 66. Areas of Winds northeast 30 to 40 Mph with Gusts to 60 Mph. Becoming 15 to 25 Mph with Gusts to 40 Mph in the afternoon.

Tonight 9 Jan Orange County Inland

Mostly clear. Areas of blowing dust overnight. Lows 42 to 45. Areas of Winds northeast 20 to 30 Mph with Gusts to 50 Mph.

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  • Temperature Real-Time

Tustin Temperature Statistics

January Temperature

John Wayne-Orange County Airport (5 miles)

  • Lowest 5 January, 2026

    53.1 °F

  • Average January

    60.3 °F

  • Highest 2 January, 2026

    68 °F

Climate (2021–Present)

John Wayne-Orange County Airport (5 miles)

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  • Average Low 2021–2026

    58.8 °F

  • Average 2021–2026

    65.7 °F

  • Average High 2021–2026

    73.3 °F
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