The best time to go to De Soto, Iowa, is typically during the late spring (May to June) and early autumn (September to October) months. These periods offer pleasant weather conditions, ideal for enjoying the local area.Late spring brings warmer temperatures and the landscape is lush and green, making it a great time for outdoor activities such as visiting local parks or exploring the Raccoon River Valley Trail. You'll find comfortable daytime temperatures, usually in the low to mid-20s Celsius, which is great for walking or cycling.Early autumn is another excellent choice, with comfortable, cooler temperatures, often in the high teens to low 20s Celsius. The changing colours of the leaves provide a scenic backdrop for any outing. This season is particularly good for those who prefer cooler weather for outdoor pursuits and for enjoying local harvest festivals that might occur in nearby towns.Both these periods avoid the often hot and humid summer months of July and August, as well as the cold and snowy winter.