If you missed the registration deadline, it is not too late to participate.  At every early voting location in Suburban Cook County, and select locations around the City of Chicago, you may register and vote during Grace Period registration. . You will need two forms of ID to register during grace period registration, at least one of which must show your current address.  Grace period registration will continue until Election Day, with limited locations on the last two days before the General Election, November 3rd and 4th.

Cook County Board of Elections
Chicago Board of Elections