Typically your summer shallow water patterns wont hold at this time of year. Start looking for green weeds in 6-10 ft.
They tend to group up together and get very condensed in specific locations. So it becomes more of a game just finding them. If you do find one you will find many. When you do find them, stick with it as there should be more around. I was out last weekend fishing some of my go to fall spots. Water temp was at 50 degrees. I did find some fish all around 3.5-4 pounds but could not locate that large pod of fish. I was unable to determine if the fish had already vacated the spot or if it was just starting to stack up.
I like to fish suspending jerkbaits to locate them and then slow down with a jig n pig or senko.