Wednesday
Mostly sunny
High:
78°F
Mostly sunny, with a high near 78. South wind 5 to 10 mph becoming west in the afternoon. Winds could gust as high as 20 mph.
Costa Mesa, CA Weather - Tomorrow’s Forecast
Wednesday Night
Mostly clear
Overnight low:
68°F
Mostly clear, with a low around 68. Southwest wind 5 to 10 mph.