The peak season to see the leaves in all their glory varies depending on the region and the weather, so it's essential to check with local sources before you plan your trip. Some destinations, like the Smoky Mountains, have a
fall foliage prediction map on their website to help you gauge your stay. As a general rule, leaves begin changing colors in late September. This phenomenon can last through early November, depending on where you are in the country. Peak times to view the leaves are the second and third week of October, before Halloween.