Friday
Mostly sunny
High:
80°F
Mostly sunny, with a high near 80. Light southwest wind becoming west 5 to 10 mph in the afternoon.
Costa Mesa, CA Weather - Extended Forecast
Friday Night
Mostly cloudy
Overnight low:
56°F
Mostly cloudy, with a low around 56. Calm wind becoming south around 5 mph.
Saturday
Mostly sunny
High:
74°F
Mostly sunny, with a high near 74.
Saturday Night
Partly cloudy
Overnight low:
54°F
Partly cloudy, with a low around 54.
Sunday
Mostly sunny
High:
69°F
Sunday Night
Mostly cloudy
Overnight low:
52°F
Monday
Mostly sunny
High:
68°F
Monday Night
Mostly clear
Overnight low:
51°F
Tuesday
Sunny
High:
71°F
Tuesday Night
Mostly clear
Overnight low:
53°F
Wednesday
Mostly sunny
High:
73°F