Chicago weather: Hottest temperatures on record in city history chicagotribune.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from chicagotribune.com Daily Mail and Mail on Sunday newspapers.
Temperatures at or above the century mark are a rarity in Chicago. The last time O’Hare International Airport, the city’s official recording site, experienced a temperature of 100 degrees or higher was July 6, 2012 — more than a decade ago. There have only been 65 days, when looking back through more than 136 years of data kept by the National Weather Service, that have logged triple-digit .