I went to Six Flags Great America on Thursday, June 10, 2010 and had somewhat long waits. I went again on Wednesday, July 2, 2014 on an overcast, windy, somewhat rainy day with temperatures in the low 60s. The park was packed with long waits for everything. Raging Bull was 45 minutes, and Viper and Whizzer were 30 minutes. Even to order lunch at 1:30 was a 20 minute wait. The crowds were just as bad after the rain stopped as before it started raining. I heard someone say that he was there 2 weeks ago, and the longest wait was 15 minutes. Would anyone have any suggestions about good days to go to the park?