The news desk
On October 7, 2026, Chicago Marathon organizers issued an alert for Sunday's race, with the event alert system set to open at the yellow level, the second of four levels. The latest National Weather Service forecast shows that Saturday night temperatures will drop only to about 62 degrees Fahrenheit, with the race starting at 7:30 a.m. Organizers consider Sunday's race weather conditions unfavorable. The current status of the event is that the alert has been issued at the yellow level, and no subsequent adjustments have been reported.
Chicago Marathon organizers issued an alert for Sunday's race, with the event's alert system opening at yellow, the second of four levels. The latest National Weather Service forecast has Saturday night cooling only to about 62 F before the 7:30 a.m. start.