They do like it cool. It may not be too late but it might be too early? Not really sure if you can fall crop them or not. Lets see what the others have to say.
Southern Indiana weather is warm and wet right now. I have always planted potatoes on Good Friday and had them in the summer. Didn't get to do that this year so I was wondering if I could plant them now and have them for this fall. I think I will try. Couldn't hurt.