The best time to go to Selby, South Dakota, 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 20s to high 20s Celsius, making it ideal for exploring the surrounding natural beauty. The long daylight hours also mean more time for fishing, boating, and enjoying the lakes and prairies.Families often find summer the most convenient time to visit, especially with children out of school. The warm weather allows for comfortable visits to local parks and recreational areas, such as the nearby Lake Oahe, which is popular for water sports and camping.Anglers and outdoor enthusiasts will particularly appreciate the summer months.