Swinging wets is very productive; across and down or upstream techniques. Dries are also great when they are coming to the surface Watch how they are rising to determine whether the fish are taking dries or emergers!!
Streamers and midges are the go-to patterns for the near future. Until the "killing" frost, terrestrials are another possible enticement. Shoot for the heat of the day and be aware of what is happening on the water. Observation is one of your best assets when the water gets clearer and colder. It will be easier to locate and target feeding fish. Be stealthy! Spend less time in the water and false casting and more time choosing the destination and placement of the fly!