San Joaquin Reservoir Weather Forecast
- 51
- 63
Increasing Clouds
- 51
- 69
Mostly Sunny
- 53
- 64
Partly Sunny
- 50
- 62
Slight Chance Rain Showers
- 49
- 65
Mostly Sunny
- 51
- 64
Mostly Sunny
Today 30 Nov Orange County Coastal
Cloudy with patchy fog this morning. Becoming partly cloudy. Highs around 63 at the Beaches to 64 to 67 farther inland and near higher coastal Terrain. Light Winds.
Tonight 30 Nov Orange County Coastal
Mostly cloudy. Lows 49 to 52. Light Winds.
San Joaquin Reservoir Temperature Statistics
November Temperature
John Wayne-Orange County Airport (4.3 miles)
Lowest 19 November, 2025
48.9 °FAverage November
62.2 °FHighest 26 November, 2025
80.1 °F
Climate (2020–Present)
John Wayne-Orange County Airport (4.3 miles)
Average Low 2020–2025
58.7 °FAverage 2020–2025
65.6 °FAverage High 2020–2025
73.4 °F