[ChicagoConservative27]

Here you go Rachel..

Over a sweltering span of five days in July 1995, Chicago — a city that once burned to ground — had never felt hotter. Unprecedented heat and humidity plunged the city into crisis, with temperatures that peaked at 106 degrees and humidity that made it feel as hot as 120.

[Ruy Dias de Bivar]

Chicago weather of the past...Heat is not new.

https://www.weather.gov/lot/top20events_1900to1999