Mission Viejo, California Weather:
Tuesday, September 22, 2026
Cloudy Weather
Day 81°
Night 59°
Precipitation 1 %
Wind 6 mph
UV Index (0 - 11+) 6
Weather Forecast History
Last Year's Weather on This Day (September 22, 2025)
Cloudy Night

Day

88°

Night

66°

Wind

4 mph

Precipitation

49 %