The threat of inclement weather had EAA AirVenture officials asking visitors clear the grounds. AirVenture closed down most of its operations at Wittman Regional Airport, including exhibit buildings and restaurants. Evening programs, Theater in the Woods and Fly-In Theater are also canceled. The night-time air show is rescheduled for tomorrow, July 29. Visitors are being asked to hang on to their wristbands. Those good for today can be exchanged for Thursday wristbands at the gates. Transportation systems will continue to operate as long as weather conditions allow. This marks only the second cancellation of a night air show at EAA AirVenture Oshkosh since those performances began in 2010. The Wednesday night air show in 2018 was also postponed due to bad weather, with the performances rescheduled for the following evening.