The dangerously hot temperatures have health experts warning people to take extra precautions to make sure you're staying cool and hydrated.
People are encouraged to drink plenty of water, not soda or alcohol, to stay hydrated.
Health experts also say to stay out of the sun to avoid heat stroke, and stay inside during the hottest part of the day.
They also recommend checking on your neighbors to ensure they're safe as well, especially if they are elderly and living alone.
Since it's expected that people will be running their fans and air conditioners, ComEd is encouraging people to unplug devices not in use, as well as run appliances like dishwashers, washers and dryers at night to avoid a power outage.
Signs of heat exhaustion include; dizziness, vomiting, excessive sweating, headaches. If you experience any of these be sure to drink plenty of fluids and seek cooler accommodations.