Some 100,000 Chicago-area residents remain without power Monday morning on the heels of a swift-moving storm that blasted through the area Sunday.

According to ComEd, as many as 250,000 Chicagoland customers were without power at the height of outages associated with the storm, ABC Chicago reports. But many people, particularly in west suburban DuPage County, are still in the dark at the start of the week.

And it could take several days before all area customers see their power restored, according to the Chicago Tribune.

ComEd spokesman Tony Hernandez told CBS Chicago that the company's crew will "work around the clock throughout the day" Monday.

"They will get everyone back on the grid just as quickly as possible. Unfortunately, due to the severity of the storms and the nature of the damage to ComEd equipment, we’re expecting restoration efforts to take several days," Hernandez continued.

Meanwhile, a warm front moving into the area following the storm is expected to create a "rather unrelenting" heat wave, according to the Tribune.

The storm moved into the area around noon Sunday, bringing wind gusts up to 90 mph with it, according to NBC Chicago.

A post-storm power outage at Northlake's Concord Plaza Retirement Home forced the relocation of 300 of the building's residents, the station reports. Power has since been restored there.

The storm also knocked down a stoplight and tore pieces of the roof off a church in Bloomingdale, Fox Chicago reports. In Chicago, more than 60 kayakers caught off guard by the storm needed to be rescued near Chicago Avenue and Halsted.