The National Weather Service says northern and central Illinois will see record-breaking low temperatures of 18 or 19 degrees below zero or colder on Tuesday and Wednesday.

The National Weather Service says Friday's deep freeze is a preview of next week, which could bring more than a half-foot of snow and the potential for the “coldest stretch in years.”

Although ice melt products can help clear slick walkways, they can also harm pets and cause damage to lawns, gardens and waterways. What you need to know.

The clock hands didn’t move this year, but that’s no “sign of stability,” says Rachel Bronson, president and CEO of the Bulletin of the Atomic Scientists. Instead, she calls it a “stark warning.”

Why should summer get all the love? We explore the wonderland of winter adventure to be had in Chicago – both indoors and out.

Tiny fossilized teeth found in sediment that surrounded Sue the T. Rex have led to the classification of a new shark species. 

The Chicago area is forecast to receive 5 to 9 inches of snow through Saturday followed by chances of lake effect snow Sunday.

Zoo officials say they’re hopeful that 2-year-old Ela and newcomer Apache, 7, will have a successful breeding season this winter and produce a litter of wolf pups in the spring.

Outgoing Gov. Bruce Rauner and first lady Diana Rauner are leaving the Governor’s Mansion in significantly greater – and greener – shape than they found it. And now the historic home has the paperwork to prove it.

A state program designed to protect the Lake Michigan shoreline is adding a new category this year aimed at helping Chicago-area communities preserve their beaches.

Ultima Thule, the relatively tiny object in the outer solar system, is now the farthest cosmic body to be reached by humans. We hear from the lead scientist behind the farthest flyby ever.

The Trump administration’s plan to roll back limits on toxic mercury pollution will harm Great Lakes fish – and potentially those who eat them, advocates say.

The origins of a suspected computer attack that disrupted the Los Angeles Times and Tribune Publishing newspapers remained unclear Sunday after causing delivery delays.

Farmers and others across the state are preparing to grow and process a new crop as Illinois finalizes regulations for industrial hemp. 

The Illinois Department of Transportation wants people who found brand new drones under the tree on Christmas morning to know that their new toys come with state and federal regulations that have to be followed.

On Jan. 1, 2019, more than 250 new laws take effect in Illinois, changing rules related to gun control and public safety to animal welfare, education – and possibly your cellphone. We give you the rundown.