Irvine Research Center Weather Forecast
- 66
- 87
Becoming Sunny
- 68
- 92
Mostly Sunny
- 69
- 89
Chance Rain Showers
- 68
- 89
Chance Rain Showers
- 68
- 88
Slight Chance Thunderstorms
- 67
- 87
Partly Sunny
Today 15 Sep Orange County Inland
Partly cloudy with patchy fog this morning. Becoming sunny. Highs 80 to 84 towards the coast to 90 farther inland. Light Winds becoming southwest 10 Mph this afternoon.
Tonight 15 Sep Orange County Inland
Clear in the evening. Becoming partly cloudy overnight with patchy fog. Lows 63 to 67. Light Winds.
Irvine Research Center Temperature Statistics
September Temperature
John Wayne-Orange County Airport (8.1 miles)
Lowest 12 September, 2025
64.9 °FAverage September
72.8 °FHighest 3 September, 2025
86 °F
Climate (2020–Present)
John Wayne-Orange County Airport (8.1 miles)
Average Low 2020–2025
58.7 °FAverage 2020–2025
65.7 °FAverage High 2020–2025
73.6 °F