Apple on ice (Submitted by Tom Rossiter)

Mix enjoys a sun-warmed spot in the apartment on a frigid day. (Submitted by Rebecca Palmore)

Snowmobile fun (Submitted by Bob Richter)

Hot dog bored by cold weather. (Submitted by Marc Vitali)

My Dad’s backyard (Submitted by Jan Schroeder)

An icy Lake Michigan on Wednesday, Jan. 30. “I couldn’t resist an early morning walk,” said Chicago Tonight’s Jay Shefsky. (Jay Shefsky / Chicago Tonight)

Chicago Park District's Garfield Park Conservatory is open and warm! (Submitted by Tim Later)

Chicago at sunrise (Submitted by Dan Soles)

Cold backyard (Submitted by Aimee Pacente)

Just one of those days at Baker’s Lake Nature Preserve (Submitted by Michelle Akins)

Frozen faucet icicle in bathroom sink of my Ravenswood 1880’s house in need of insulation. Photo taken Wednesday, Jan. 30. (Submitted by Karen Graham)

Montrose Harbor looking toward skyline. (Submitted by Eddie Arruza)

(Submitted by Tricia D.)

This robin wishes he had gone south fo the winter. He was under our bushes in the front yard this morning in DeKalb, IL. (Submitted by Barry Schrader)

Chicago River at dusk (Submitted by Tom Rossiter)

Chicago at sunrise (Submitted by Dan Soles)

Edgewater sunrise on Jan. 31, 2019 (Submitted by Susan McLain)

Hanging shoes on a wire under the snowy Paulina Brown Line (Submitted by Cody Corrall)

My WTTW coworker thought I’d enjoy this little message on my car. Too bad I’m a Packers fan. Go Pack Go! (Submitted by Crystin Immel)

Miller Beach, Wednesday afternoon (Submitted by Scott Alwin)

Michigan Avenue at dusk (Submitted by Tom Rossiter)

Chicago at sunrise (Submitted by Dan Soles)

My dad and me out for a brisk run Thursday morning. Bundle up! (Submitted by Brian Wagner)

Lake Michigan at minus 18 degrees (Submitted by Alexandra Silets)

Wed 1.30.2018 leaving o'hare airport. (Submitted by Renee Briones)

Edgewater pre-dawn on Wednesday, Jan. 30 (Submitted by Susan McLain )

Making snow (Submitted by Macie Kalb)

“Crowds” at Montrose Harbor taking photographs (Submitted by Mary Field)

Plenty of parking at Navy Pier (Submitted by Tim Later)

Greetings from the southwest suburbs of Siberia (Submitted by Robert Timmerman)

Beaver today feb 2 along the lake in South Chicago. (Submitted by Brendon Stutzman)

Lake Michigan frozen at Ohio St Beach (Submitted by Colleen Gwarnicki)

Tux, aka “Bugs” enjoying the polar vortex of 2019 (Submitted by Debbi Frahm)

From Adler Planetarium looking toward skyline (Submitted by Eddie Arruza)

Marion Mahoney Beach in Rogers Park (Submitted by Krys Hansen)

Car temperature (Submitted by Ava Martin)

My Weimaraner Louie (Submitted by Bob Richter)

Cold weather at Northwestern University (Submitted by Eric Chin)

Oak Street Beach (Submitted by Eugene Jablonowski)

Here are all the layers Jay Shefsky wore for his Wednesday, Jan. 30 walk outdoors. (Jay Shefsky / Chicago Tonight)