Voters can certainly vote in person on election day. The Chicago Board of Election Commissioners has a resource at which you can

Locate your precinct polling place for voting or registering on Election Day
• Verify your voter registration (if you include your last name below)
• Obtain a sample ballot
• Find contact information for your public officials
• Check the status of your Vote-By-Mail application (if you include your last name below)

Visit : https://chicagoelections.gov/en/your-voter-information.html