The Holiday Bowl announced that kickoff will be pushed back from 7:30 p.m. PST to 7:40.
It is about 50 degrees with no wind at Qualcomm Stadium as USC and Wisconsin warm up.
Wisconsin fans have been scattered throughout San Diego the last few days and it appears most USC fans made the two hour (without traffic) drive on I-5 today.
USC is 8-5 this season and Wisconsin, from the Big Ten Conference, is 9-3.
The Trojans defeated Nebraska, 45-42, in the Holiday Bowl last season.
Coach Clay Helton will call plays in tonight's game despite promoting receivers coach Tee Martin to offensive coordinator.