Costa Mesa, California Weather:
Thursday, October 22, 2026
Sunny Weather
Day 79°
Night 64°
Precipitation 1 %
Wind 4 mph
UV Index (0 - 11+) 4
Weather Forecast History
Last Year's Weather on This Day (October 22, 2025)
Cloudy Night

Day

70°

Night

55°

Wind

5 mph

Precipitation

1 %