Tustin, California Weather:
Thursday, September 17, 2026
Cloudy Weather
Day 86°
Night 66°
Precipitation 63 %
Wind 4 mph
Weather Forecast History
Last Year's Weather on This Day (September 17, 2025)
Cloudy Weather

Day

90°

Night

68°

Wind

6 mph

UV Index

60

Precipitation

25 %