65 ILCS 5/11-117-12.1

No gas or electric service furnished to residential users by a municipality shall be terminated for nonpayment of bills on: (i) any day when the National Weather Service forecast for the following 24 hours covering the area in which the residence is located includes a forecast that the temperature will be 20 degrees Fahrenheit or below; or (ii) any day preceding a holiday or a weekend when such a forecast indicates that the temperature will be 20 degrees Fahrenheit or below during the holiday or weekend.

This amendatory Act of 1979 applies to all municipalities that own or operate a public utility, including home rule units. However, nothing in this Section shall prevent any municipality from establishing more stringent measures.