William R Mason Regional Park Weather Forecast
- 68
- 86
Mostly Sunny
- 65
- 83
Increasing Clouds
- 65
- 82
Mostly Sunny
- 65
- 83
Mostly Sunny
- 66
- 84
Mostly Sunny
- 67
- 84
Mostly Sunny
- 68
- 86
Partly Sunny
Today 30 Aug Orange County Coastal
Partly cloudy with patchy fog this morning. Becoming mostly sunny. Highs 78 to 82 at the Beaches to 83 to 88 farther inland and near higher coastal Terrain. Areas of Winds south 10 Mph.
Tonight 30 Aug Orange County Coastal
Mostly clear this evening. Becoming partly cloudy. Lows 65 to 68. Areas of Winds southwest 10 Mph this evening becoming light.
William R Mason Regional Park Temperature Statistics
August Temperature
John Wayne-Orange County Airport (2.5 miles)
Lowest 5 August, 2026
68.6 °FAverage August
77.9 °FHighest 23 August, 2026
93.7 °F
Climate (2021–2026)
John Wayne-Orange County Airport (2.5 miles)
Average Low 2021–2026
59 °FAverage 2021–2026
66.1 °FAverage High 2021–2026
73.8 °F