Tustin, California Weather:
Friday, September 18, 2026
Cloudy Weather
Day 84°
Night 64°
Precipitation 19 %
Wind 4 mph
Weather Forecast History
Last Year's Weather on This Day (September 18, 2025)
Cloudy Weather

Day

84°

Night

66°

Wind

7 mph

UV Index

50

Precipitation

25 %