The best time to go to Ottawa, Kansas, is during the spring (April to May) and autumn (September to October) months when the weather is mild and pleasant.During these seasons, you'll find comfortable temperatures, making it ideal for exploring the town's outdoor attractions without the extreme heat of summer or the chill of winter. Spring brings blooming flowers and lush greenery, while autumn offers beautiful fall foliage, creating a picturesque backdrop for your visit.For those interested in outdoor activities like hiking, cycling, or exploring the local parks, spring and autumn offer the most agreeable conditions. The moderate weather makes it easy to enjoy a stroll through downtown Ottawa, visit the Franklin County Historical Society Museum, or explore the Prairie Spirit Trail State Park.If you plan to attend local events or festivals, checking the specific dates for spring and autumn gatherings would be beneficial.