Chicago weather: 'Great Lake Jumper' Dan O'Connor continues jumping into Lake Michigan every day despite extreme cold

In Chicago, regardless of the weather, a man known as “The Great Lake Jumper” plunges into the chilly waters of Lake Michigan every morning.

While taking such a dive on a frigid day like Friday might not be advisable, this individual remains undeterred by the cold.

ABC7 delved into his story to uncover what motivates him to continue this daily tradition without a single miss for over five years.

ABC7 Chicago is now streaming 24/7. Click here to watch

This Friday, the Chicago region is bracing under an Extreme Cold Warning. A Cold Weather Advisory is in effect from noon Friday through 9 a.m. Saturday, covering the entire area.

Despite the biting temperatures, some brave souls were spotted taking the icy plunge on Friday morning.

Among them was Dan O’Connor, one of four individuals who either jumped or slowly entered the lake. O’Connor has maintained this chilly habit consistently for several years.

It is a ritual that’s been going on for years and one that subzero temperatures didn’t stop as Chicago’s Great Lake Jumper took his daily plunge into Lake Michigan.

Like clockwork, O’Connor was flipping into Lake Michigan.

“It’s become part of my routine,” O’Connor said. “Wake up, have a cup of coffee and drive to the lake and jump in.”

The 58-year old husband and father has now leapt into Lake Michigan at Montrose Harbor every morning for the past five and a half. Even with Friday’s icy waters, it was no different.

“Today for as bad as the temperature is and for as low as the temperature is, it wasn’t bad there wasn’t much ice buildup,” O’Connor said. “I really didn’t have to chop ice today.”

Even with subzero temperatures, he took the plunge and so did four others while several people watched.

“We’re still Chicagoans, and Chicagoans are built different,” O’Connor said.

O’Connor says his “addictive” dunk into lake waters began during the COVID-19 pandemic on June 13, 2020 after his wife gave him a friendly suggestion about how to cure his hangover.

“And like a good husband I listen to my wife,” O’Connor said. “She told me to go jump at the lake and I did.”

Despite the holidays, family gatherings, and life’s other commitments, the Lincoln Square neighborhood resident has managed to keep his streak going. He’s made 2,049 jumps so far.

The jumps have made him a bit of a local celebrity and a favorite on social media. While he says Friday’s jump got around 200,000 views in just two hours, he maintains his dives are about inner peace.

“It’s something positive and I love the internal rush that I get and it’s an amazing feeling,” O’Connor said.

He says he’s never been hurt during his jumps and always tries to be as safe possible, even keeping a sledgehammer handy to break up ice if necessary.

“We’ve got this great lake and and it’s right here on our doorstep in Chicago and it’s there to use and I’m using it,” O’Connor said.

One question is how long will O’Connor continue to jump in the lake. He says until he can’t.

Frostbite risk

Dr. Joshua Sherman from Advocate Health Care joined ABC7 on Friday morning.

The temperatures could cause frostbite on exposed skin in as little as 10 minutes.

“It’s really important they wear a number of layers, staying very warm, but also staying very dry. Making sure you’re also not wearing anything very, very tight that restricts any blood flow,” Endeavor Health Elmhurst Hospital Dr. Ameer Sharifzadeh said. “If you start to feel any kind of tingling or numbness, any a lot of pain, absolutely get indoors, make sure you’re getting warm.”

Copyright © 2026 WLS-TV. All Rights Reserved.

You May Also Like
No one speaks on behalf of NYC homeless victims Randy Santos killed

Silence Surrounds Tragic Loss of NYC Homeless Victims in Randy Santos Case

In a deserted courtroom on Thursday, the absence of voices to advocate…
Virginia bus crash that killed 5 involved non-English speaking driver who got license in NY, says Sean Duffy

Virginia Bus Tragedy Involving Non-English Speaking Driver Licensed in NY Claims 5 Lives, Reports Sean Duffy

The bus driver involved in a tragic accident in Virginia that resulted…
CPS student Ricardo Hernandez Navarrete, detained by ICE, receives diploma at Mather High School graduation after Chicago return

Triumphant Return: CPS Student Ricardo Hernandez Navarrete Earns Diploma Despite ICE Detainment

In a heartwarming turn of events, a Chicago Public Schools student, recently…
Skeleton unearthed near Nancy Guthrie search site believed to be up to 1,000 years old, expert says

Ancient Skeleton Discovered Near Nancy Guthrie Search Site: Experts Estimate Age at 1,000 Years

In Tucson, Arizona, the unearthing of ancient human remains near the area…
Laos cave rescue: Crews evacuate the first of 5 people stuck in cave; 2 still missing

Successful Laos Cave Rescue: First of Five Evacuees Freed, Search Continues for Two Missing

In a dramatic rescue operation in Laos on Friday night, divers successfully…
Man suspected of slaying NY hospital worker kills himself after 25-year cold case

Suspect in Decades-Old NY Hospital Worker Case Dies by Suicide After 25 Years on the Run

A tragic chapter in a New York cold case has come to…
White House says Trump is in

White House Confirms Trump’s Current Status

According to a letter released late Friday by President Trump’s physician, the…
US still has work to do on MLK Jr.'s American dream: son

Progress Unfinished: MLK Jr.’s Son Calls for Continued Action on the American Dream

Leading up to July 4, The Post, in collaboration with the Milken…
Ridgeview High School teacher arrested after deputies say he sent sexts to student

Ridgeview High School Educator Arrested Following Allegations of Inappropriate Communication with Student

A Ridgeview High School instructor has been taken into custody following allegations…
One dead in freak Perris skydiving accident in California

Tragic Skydiving Incident in Perris, California: One Fatality in Unforeseen Accident

A tragic skydiving accident in Perris, California, has resulted in one fatality…
NYC taxpayers on the hook for shocking $375K tab -- just to replace 2 water fountains in 3 years

NYC Taxpayers Face $375K Bill for Replacing Two Water Fountains Over Three Years: A Costly Infrastructure Update

New Yorkers are set to shoulder a hefty $375,000 bill for the…
4 climbers fall at elevation of 18,200 feet on America's tallest peak as rescuers try to reach them

Rescue Mission Underway: 4 Climbers Plummet from 18,200 Feet on Denali, America’s Tallest Peak

Efforts are underway to reach a group of four climbers who suffered…