Santiago Canyon Weather Forecast
- 72
- 99
Hot
- 71
- 98
Hot
- 68
- 97
Hot
- 67
- 95
Mostly Sunny
- 66
- 92
Mostly Sunny
- 62
- 85
Partly Sunny
Today 5 Oct Orange County Inland
Sunny, hot. Highs 99 to 103. Areas of Winds northwest to 10 Mph.
Tonight 5 Oct Orange County Inland
Clear. Lows 72 to 75. Areas of Winds west 10 Mph with Gusts to 25 Mph this evening becoming light.
Santiago Canyon Temperature Statistics
October Temperature
John Wayne-Orange County Airport (10.6 miles)
Lowest 2 October, 2026
66.9 °FAverage October
80.7 °FHighest 3 October, 2026
100.9 °F
Climate (2021–2026)
John Wayne-Orange County Airport (10.6 miles)
Average Low 2021–2026
59.1 °FAverage 2021–2026
66.2 °FAverage High 2021–2026
73.8 °F