Costa Mesa Weather Forecast
- 49
- 65
Mostly Cloudy
- 50
- 65
Partly Sunny
- 52
- 69
Partly Sunny
- 56
- 75
Mostly Cloudy
- 56
- 73
Mostly Cloudy
- 54
- 71
Partly Sunny
- 56
- 72
Partly Sunny
Today 28 Mar Orange County Coastal
Partly cloudy. Highs 60 to 65. Light Winds.
Costa Mesa Temperature Statistics
March Temperature
Santa Ana, John Wayne Airport-Orange County Airport (3.7 miles)
Lowest 18 March, 2020
50 °FAverage March
61.2 °FHighest 3 March, 2020
80.1 °F
Climate (2010–Present)
Santa Ana, John Wayne Airport-Orange County Airport (3.7 miles)
Average Low 2010–Present
58.4 °FAverage 2010–Present
64.7 °FAverage High 2010–Present
73.1 °F