Tustin Weather Forecast

    • 58
    • 71

    Mostly Cloudy

    • 55
    • 73

    Partly Sunny

    • 56
    • 74

    Patchy Fog

    • 57
    • 76

    Mostly Sunny

    • 59
    • 80

    Mostly Sunny

    • 60
    • 81

    Partly Sunny

Today 20 May Orange County Inland

Cloudy in the morning. Becoming partly cloudy. Patchy fog in the morning. Patchy drizzle in the morning. Highs 68 to 73. Light Winds.

Tonight 20 May Orange County Inland

Partly cloudy in the evening. Becoming mostly cloudy. Patchy drizzle overnight. Lows 53 to 58. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Tustin Temperature Statistics

May Temperature

John Wayne-Orange County Airport (5 miles)

  • Lowest 11 May, 2022

    54 °F
  • Average May

    66.1 °F
  • Highest 14 May, 2022

    87.1 °F

Climate (2010–Present)

John Wayne-Orange County Airport (5 miles)

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  • Average Low 2010–Present

    58.5 °F
  • Average 2010–Present

    65 °F
  • Average High 2010–Present

    73.5 °F
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