| Story by Meghan McMahon |
Autumn has officially arrived, but one of the most anticipated events of fall — the leaves achieving peak fall form with hues of yellow, orange, red, purple and brown — is still a few weeks away.
On average, the leaves in Will County and northern Illinois start to change about the third week of September, but the peak is usually not until mid- to late October, said Bob Bryerton, an interpretive naturalist for the Forest Preserve District.
The weather is the most important factor in how colorful our trees and forests will be in the fall, and the weather right now is just one piece of the puzzle, Bryerton said. Nearly every weather factor during every season can affect when the leaves change and how long the season lasts. And abnormal weather conditions in the winter, spring and summer impact the fall color as well.
“Every season has variables, and they all affect the trees,” Bryerton said.