William R Mason Regional Park Weather Forecast
- 53
- 64
Rain Showers
- 52
- 63
Slight Chance Rain Showers
- 49
- 65
Slight Chance Rain Showers
- 49
- 66
Mostly Sunny
- 48
- 66
Mostly Sunny
- 49
- 69
Mostly Sunny
- 49
- 71
Mostly Sunny
Today 4 Jan Orange County Coastal
Mostly cloudy with a chance of Showers. A slight chance of Thunderstorms this afternoon. Highs around 63. Areas of Winds south 10 to 15 Mph. Chance of measurable precipitation 30 percent.
Tonight 4 Jan Orange County Coastal
Showers this Evening, then Showers likely and a slight chance of Thunderstorms overnight. Lows around 53. Areas of Winds south 10 to 20 Mph with Gusts to 30 Mph becoming west to 10 Mph overnight.
William R Mason Regional Park Temperature Statistics
January Temperature
John Wayne-Orange County Airport (2.5 miles)
Lowest 1 January, 2026
57 °FAverage January
62.3 °FHighest 2 January, 2026
68 °F
Climate (2021–Present)
John Wayne-Orange County Airport (2.5 miles)
Average Low 2021–2026
58.8 °FAverage 2021–2026
65.6 °FAverage High 2021–2026
73.3 °F