Santiago Canyon Weather Forecast

    • 51
    • 75

    Partly Sunny

    • 55
    • 78

    Mostly Sunny

    • 54
    • 76

    Mostly Sunny

    • 53
    • 78

    Mostly Sunny

    • 53
    • 76

    Mostly Sunny

    • 53
    • 75

    Mostly Sunny

Today 18 May Orange County Inland

Partly cloudy. Highs around 75 towards the coast to 76 to 79 farther inland. Areas of Winds southwest to 10 Mph becoming 10 to 15 Mph with Gusts to 25 Mph in the afternoon.

Tonight 18 May Orange County Inland

Partly cloudy. Lows 51 to 57. Areas of Winds west 10 Mph in the evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Santiago Canyon Temperature Statistics

May Temperature

John Wayne-Orange County Airport (10.6 miles)

  • Lowest 6 May, 2026

    56.6 °F

  • Average May

    65.7 °F

  • Highest 11 May, 2026

    75.7 °F

Climate (2021–Present)

John Wayne-Orange County Airport (10.6 miles)

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  • Average Low 2021–2026

    59 °F

  • Average 2021–2026

    66 °F

  • Average High 2021–2026

    73.7 °F
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