Tustin, California Weather:
Sunday, October 18, 2026
Sunny Weather
Day 88°
Night 64°
Precipitation 1 %
Wind 2 mph
UV Index (0 - 11+) 4
Weather Forecast History
Last Year's Weather on This Day (October 18, 2025)
Cloudy Night

Day

86°

Night

54°

Wind

4 mph

Precipitation

0 %