The Illinois House passed the bill with a vote of 64-50.
Mayor Rahm Emanuel supported the bill, saying it will make school zones safer. Critics compare the cameras to similar machines in populated areas that catch those ignoring red lights. They say they don't improve safety but produce huge revenues for local governments. They also question the reliability of the photos.
A spokeswoman says Quinn has not decided whether to sign it.
The Associated Press contributed to this report.
