Share 'Fall fishing?'

I know spring they move in to warmer water. Then spawn. Then go deep again.. how deep the majority of the fish go idk. Have not learned that yet. I know where they are through ice. But what happenes as weather cools in September? You start getting pretty cool nights. Do they move more shallow again to warm? How is the fishing at this time of year? What can I expect? Or how to target them? I know…