I drove in Kansas City winters with no issues and I had summer tires. That winter we had 42" of snow. I know Chitown gets more but get some good winter tires as Bob said and drive carefully and you will be fine.
If you have Blizzaks all around you will be OK. I have the Michelin AS (all season) and they are just horrible in snow. This RWD is not as heavy in the rear as we would like and, as such, it is 'interesting' in the snow. I have only been in it one time and that was enough for me.
Automobile(s): 08 STS-V,09 escalade, 80 sedan deville diesel 99 c5 frc 78 z
This is not my best idea but was lots of fun. On bald tires no less. http://www.youtube.com/watch?v=V6a07...e_gdata_player With a full tank of gas the car goes ok but under 1/2 I can't get out of my drive way that is all most flat. I have a 4x4 so it just sits over winter if it's snowing out. I don't mind snow on it it's the salt that I don't like.