Fall color in our area starts around the middle of October and stretches into November. Generally the fall colors will spread from the north to the south as the amount of solar radiation decreases from north to south with the changing season limiting the amount of chlorophyl (green color) in plants.
The state of Arkansas also maintains a website with weekly updates which you can find here: http://www.arkansas.com/fall/fall-foliage/
-Garrett
