The best time to go to Warm River is during the summer months, from June to August, for warm weather activities, or in late autumn, specifically September and October, for fishing and enjoying the changing leaves.During the summer, the weather is typically warm and sunny, making it ideal for spending time outdoors. The Warm River, a tributary of the Ashton Reservoir, is great for fly fishing, kayaking, and tubing. The nearby Mesa Falls are particularly impressive with the higher water flow, and the surrounding Targhee National Forest offers numerous hiking and mountain biking trails that are easily accessible. This period is excellent for families looking for an active holiday with plenty of outdoor options.For those prioritising fishing, late autumn provides a quieter experience. The crowds thin out, and the river conditions are often excellent for fly fishing, particularly for trout. The landscape transforms with the vibrant colours of autumn foliage, offering a beautiful backdrop for walks and photography.