 From ABC News, I'm Chuck Severson. AAA predicting record-breaking travel numbers, air and road, this July 4th holiday period. Some will face stormy weathers, says ABC's Phil Lipoff. On the roads, 60 million drivers are expected. The worst time to travel, between 2 and 8 p.m. The best time, before 10 a.m. The national average for a gallon of gas is $3.50.