The best time to go to Findlay is late spring through early autumn, specifically from May to October, when the weather is most agreeable for outdoor activities.During these months, you'll experience pleasant temperatures, ideal for enjoying Lake Shelbyville, which is the main attraction. The summer months, June, July, and August, are particularly popular for boating, fishing, and swimming.For those who prefer slightly cooler weather and fewer crowds, May and September offer comfortable conditions.