CHICAGO (AP) — Workers strolled coatless through downtown. Women wore skirts over bare legs. And joggers were in shorts and T-shirts.

Many Chicagoans enjoyed temperatures expected to soar to 66 degrees Tuesday — exactly one week after they had to bundle up against subzero temperatures and brutal wind chills.

"When I woke up this morning I was shocked by it, but it's Chicago." said Anne Sunseri, 30, wearing just a light leather jacket while taking a break from her job at a legal recruiting firm. "You never can really expect what the weather's going to be. It just fluctuates so much recently, and I don't feel like it used to be that way."

Carol Krueger of suburban North Hoffman Estates, who was downtown in a light jean jacket, noted that just a few days earlier she was struggling to drive through blowing snow.

"It's bizarre, it's scary," Krueger said. "I don't know if God has anything to do with this or what."

National Weather Service meteorologist David Beachler said the weather this winter and last, "definitely has been very odd," adding that Tuesday's warm, humid air was more typical of late spring or early summer. On Friday, Chicago got its first snowfall of more than an inch this winter, breaking a 114-year-old record for the latest first snowfall over an inch.

Beachler said those who like Tuesday's warmth — a record for the day — should enjoy it, because it won't last.

By Thursday, high temperatures likely will be in the teens.