The first round of rain moved through the city and suburbs on Monday afternoon. The wet weather impacted flights at O'Hare, where over 100 flights were canceled and delays averaged 45 minutes. No delays or cancellations were reported at Midway Airport.
A second round of storms, expected late Monday night, will bring the greatest chance for heavy rain. Isolated areas will see an additional 1 to 2 inches of rain overnight.
Watch the latest forecast from our First Alert Weather team