The best time to visit Mattoon for a holiday rental is during the peak season from July to September, with September being particularly popular. This period attracts families and outdoor enthusiasts drawn to the area's charming parks and local events, making it a vibrant time to explore the community and enjoy various activities.Summer in Mattoon brings warm temperatures, typically ranging from 20 to 30 degrees Celsius, creating ideal conditions for outdoor adventures, picnics, and sightseeing. Visitors can take advantage of the lovely weather to explore the beautiful parks, such as the picturesque Lake Mattoon, where fishing and boating are popular pastimes.For those looking to enjoy a more tranquil experience, October offers a fantastic opportunity to visit at a lower cost. The fall months showcase stunning autumn foliage, and the cooler temperatures, averaging around 10 to 20 degrees Celsius, are great for leisurely walks and enjoying the scenic beauty of the changing leaves.