CHICAGO — Family portrait takers, tour guides and social media influencers are running out of time to photograph the final days of the best season of fall colors in northern Illinois in years, experts say.
The Chicago area may have the best colors of the entire state, as other parts continue to struggle with dry conditions.
The color change is triggered by cooler seasonal temperatures that cause trees to stop producing chlorophyll, which makes leaves green and powers photosynthesis, in preparation for the cold winter months. As leaves lose their special pigment, their colors change from vibrant to a dull brown.
