If you like airplanes you won't want to miss the annual Scott Air Force Base Air Show!
The Golden Knights, Canadian Snowbirds, and Tora! Tora! Tora! will be among the performers and there will be demonstrations by F-15s, F/A-18s and more. A schedule of flying times is available but is subject to change. In addition, many planes will be on display. You will be able to walk up close to the planes and talk to the pilots--and maybe even get their autographs!
If you aren't familiar with the Scott Air Force Base area, it's located close to Shiloh, IL, just a few miles off of I-64 (about 20 minutes east of downtown St Louis). The SAFB Shiloh and Belleville Gates will open at 9am both days and the air show will run from 11am to 5pm.
Parking and admission is free but you will need to go through security checkpoints to get onto Scott Air Force Base.