CHICAGO, IL - JUNE 22: Fog surrounds the Willis Tower (formerly Sears Tower) on June 22, 2014 in Chicago, Illinois. The city had been experiencing warm temperatures and a severe storm, but as the temperatures cooled a dense fog rolled in off Lake Michigan, covering the city's skyline. (Photo by Scott Olson/Getty Images)
Updated: June 25, 2014 10:38PM
Summer arrived, officially, days ago. But that mighty cold winter is still leaving its mark.
Yes, you can blame the polar vortex, at least in part, for the fog that keeps rolling in, sliding between skyscrapers at all hours of the day, hugging the lake.