The Rainy River is infamous for the fall fishing. Anglers have an opportunity to catch walleyes of all sizes. Early September produces good walleye action, and as the weather cools and the temperature of the river drops, larger walleyes can be caught. Fall fishing often has anglers catching and releasing 5 pound to 10 pound walleyes.
Fishing techniques vary with weather and river conditions.
Common would be a jig and an emerald shiner. The Rainy is usually full of emerald shiners in the fall. Walleyes like to hang deep out of the current of the river. Drifting is another technique that usually produces well. You can drift, or use a trolling motor.