This weekend (Aug 19 - 20) is the 42nd Annual Chicago Air and Water Show. It's the oldest and largest FREE admission air exhibition in the U.S.
Location & Time: Chicago's lakefront from Fullerton Ave. to Oak St. 10 AM - 4 PM (1000 - 1600 hrs).
The showcase performer this year is the U.S. Navy Flight Demonstration Team - The Blue Angels.
Civilian air show performers include: Northern Lights Aerobatic Team, Toyota Airsports, the Lima Lima Flight Team, Red Baron Stearman Squadron and Ian Groom with his FUJIFILM Sukhoi SU-31
Military performers include: the F-15 Eagle, F-14 Tomcat, F-18 Hornet, F-117 Stealth Fighter, B-1B Bomber, B-2 Bomber, C-141 Starlifter, KC-135, F-16, AH-64 Apache, A-10 Thunderbolt, U.S. Army Special Forces and U.S. Navy Leapfrogs.
BTW, there's also a water show, but who cares...