Santiago Canyon Weather Forecast

    • 69
    • 89

    Slight Chance Rain Showers

    • 72
    • 94

    Mostly Sunny

    • 70
    • 95

    Mostly Sunny

    • 67
    • 92

    Mostly Sunny

    • 63
    • 86

    Mostly Sunny

    • 60
    • 82

    Mostly Sunny

    • 60
    • 82

    Mostly Sunny

Today 7 Sep Orange County Inland

Partly cloudy with a slight chance of Showers and Thunderstorms. Warmer. Highs 89 to 93. Light Winds becoming west 10 Mph this afternoon. Chance of measurable precipitation 20 percent.

Tonight 7 Sep Orange County Inland

Partly cloudy. Lows 69 to 73. Areas of Winds west to 10 Mph this evening becoming light.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Santiago Canyon Temperature Statistics

September Temperature

John Wayne-Orange County Airport (10.6 miles)

  • Lowest 5 September, 2026

    64.9 °F

  • Average September

    73.4 °F

  • Highest 5 September, 2026

    84 °F

Climate (2021–2026)

John Wayne-Orange County Airport (10.6 miles)

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

  • Average Low 2021–2026

    59 °F

  • Average 2021–2026

    66.1 °F

  • Average High 2021–2026

    73.8 °F
Get WillyWeather+ to remove ads