The best time to view fall colors in Illinois is from the middle of October through early November. The Illinois River Road National Scenic Byway offers excellent views of the fall foliage with a scenic 291-mile loop that follows both shores of the Illinois River.
A drive along the Illinois River Road National Scenic Byway offers views of the fall foliage in several wildlife refuges and parks, including the Chautauqua National Wildlife Refuge, Starved Rock State Park and Matthiessen State Park. It also offers views of beautiful urban foliage in the cities of Peoria, Peoria Heights and Ottawa. The peak time for viewing varies based upon weather and region. To guide visitors, the state offers a foliage hotline at 800-226-6632.