Costa Mesa, California Weather:
Thursday, April 16, 2026
Sunny Weather
Day 66°
Night 59°
Precipitation 1 %
Wind 6 mph
UV Index (0 - 11+) 9
Weather Forecast History
Last Year's Weather on This Day (April 16, 2025)
Cloudy Weather

Day

66°

Night

55°

Wind

7 mph

UV Index

5

Precipitation

8 %