The best time to visit Fort Yates is during the summer months, from June to August, when the weather is warm and conducive to outdoor activities.During this period, temperatures are generally pleasant, ranging from the low 70s to low 80s Fahrenheit, making it ideal for exploring the natural beauty of the area and engaging in activities like fishing, boating, and hiking. Many local events and cultural gatherings also take place in the summer, offering visitors a chance to experience the community's heritage.For those interested in fishing and water sports, the summer provides optimal conditions on the Missouri River and Lake Oahe.