Anglers come here to catch rainbow, brown, and cutthroat trout, as well as kokanee salmon. Nearby activities include hiking, bird watching, and camping. For the best fishing experience, anglers are advised to use small lures or flies and fish near the bottom. The best time to visit Lake John is from May to October when the weather is mild and the fish are most active. In the summer months, the average temperature is around 70°F, while in the fall, it drops to around 50°F.