The fall season will officially begin soon in the Chicago area, but some have already noticed leaves starting to change color.

While northern Illinois is already seeing signs of change, peak colors won't come just yet.

Fall officially starts on Sept. 22, just as leaves begin showing some of the first signs of the changing season.

Is this early or late for typical changes to foliage?

Here's a timeline and what to watch for in the weather to know just how vibrant the fall colors could be:

Mid-to-late September

According to Illinois' fall foliage map , leaves are already showing "minimal" signs of change.

By the end of the month, the transition will be in full swing, the Illinois Trip Planner from the Department of Natural Resources predicts, particularly for northern Illinois and th

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