So sorry nobody has gotten to you yet,
@ozmogardener...
In the MidWest pretty much all crops should be done by September/October. They just can't handle the frost, unless you want to spend a lot of money on grow lights, warm mats and other things, or you have a greenhouse.
I'm new to both the MidWest and MidWest gardening but I've accumulated enough information in the past year to know the above. I'm sure there are others much more knowledgeable about gardening that can help you further.