ARLINGTON HEIGHTS, Ill. -- It's the fourth day without power for some people after Sunday's winter storm.
The hardest hit areas are in the northern suburbs, all the way to the Wisconsin border. As of 4 p.m. on Wednesday, crews worked on the last 500 homes in Arlington Heights.
It's dangerously cold outside, and that means homes without power are flirting with temperatures that could lead to frozen pipes.
ComEd president said there are 3000 crews working and 1800 of them are from out of town. They have been working 16-hour days.