Wednesday
Clouds clearing
High:
69°F
Mostly cloudy, then gradually becoming sunny, with a high near 69. Southeast wind 5 to 10 mph becoming southwest in the afternoon.
Costa Mesa, CA Weather - Extended Forecast
Wednesday Night
Partly cloudy
Overnight low:
55°F
Partly cloudy, with a low around 55. Southwest wind around 5 mph becoming southeast after midnight.
Thursday
Mostly sunny
High:
71°F
Mostly sunny, with a high near 71.
Thursday Night
Partly cloudy
Overnight low:
56°F
Partly cloudy, with a low around 56.
Friday
Mostly sunny
High:
70°F
Friday Night
Clouds increasing
Overnight low:
55°F
Saturday
Clouds clearing
High:
68°F
Saturday Night
Partly cloudy
Overnight low:
55°F
Sunday
Mostly sunny
High:
66°F
Sunday Night
Partly cloudy
Overnight low:
55°F
Monday
Mostly sunny
High:
66°F