Tustin Weather Forecast

    • 46
    • 70

    Sunny

    • 50
    • 74

    Breezy

    • 51
    • 74

    Mostly Sunny

    • 53
    • 76

    Mostly Sunny

    • 54
    • 78

    Sunny

    • 54
    • 78

    Sunny

    • 53
    • 78

    Sunny

Today 10 Jan Orange County Inland

Sunny. Areas of blowing dust. Highs around 70. Areas of Winds northeast 25 to 35 Mph with Gusts to 55 Mph.

Tonight 10 Jan Orange County Inland

Clear. Lows 41 to 46. Areas of Winds northeast 25 to 35 Mph. Gusts to 55 Mph. Becoming 50 Mph overnight.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Tustin Temperature Statistics

January Temperature

John Wayne-Orange County Airport (5 miles)

  • Lowest 8 January, 2026

    48 °F

  • Average January

    59.5 °F

  • Highest 2 January, 2026

    68 °F

Climate (2021–Present)

John Wayne-Orange County Airport (5 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    58.8 °F

  • Average 2021–2026

    65.7 °F

  • Average High 2021–2026

    73.3 °F
Get WillyWeather+ to remove ads