I don't know about the rest of the state, but we have been having some really chilly nights and mornings up here in Summit County - like 30s/40s. I predict Fall colors will be here sooner than later this year - for us at least.
A commonly asked question is "when is a good time to go see the changing of the Aspens." Therefore I predict the weekend of September 24th will be the ideal color time for Summit County.
Anyone care to challenge that prediction, or make one for their area?