Thursday
Mostly sunny
High:
80°F
Mostly sunny, with a high near 80. Light south wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Costa Mesa, CA Weather - Extended Forecast
Thursday Night
Clouds increasing
Overnight low:
69°F
Increasing clouds, with a low around 69.
Friday
Mostly sunny
High:
80°F
Mostly sunny, with a high near 80.
Friday Night
Mostly clear
Overnight low:
69°F
Mostly clear, with a low around 69.
Saturday
Mostly sunny
High:
81°F
Saturday Night
Mostly clear
Overnight low:
69°F
Sunday
Mostly sunny
High:
81°F
Sunday Night
Mostly clear
Overnight low:
69°F
Monday
Mostly sunny
High:
80°F