Illinois Gov. J.B. Pritzker said the state's modified stay-at-home order will allow more flexibility "where it is safe" to do so.
The order will go into effect Friday, May 1.
State parks, golf courses, retail stores, and garden centers are some of the few places that are reopening with strict social measures.
Elective surgeries that have been put off due to the crisis can also now be scheduled in surgery centers and hospitals, Pritzker said.
He also will require everyone in the state to wear a face mask when possible.
"Tomorrow will be the first day where adults and any children over the age of two and everyone medically able to tolerate a face covering will be required to wear one in public places where they can't maintain a 6-foot social distance," he said.