2016 Fall Foliage Prediction Map

Kottke says this is the best one to follow, so I'm going to just go ahead and believe him. If you want to know when your local trees are going to start changing colors for the fall, here's a site that maps it out for you. And it's not just a map either. If you want to know a little earth science on why this event even happens every year, you can read up about it on the same page.