Wednesday
Becoming sunny
High:
87°F
Partly sunny, then gradually becoming sunny, with a high near 87. Southeast wind 5 to 10 mph becoming southwest in the afternoon.
Fullerton, CA Weather - Tomorrow’s Forecast
Wednesday Night
Mostly clear
Overnight low:
68°F
Mostly clear, with a low around 68. Southwest wind 5 to 10 mph becoming light south after midnight.