Another was a University of Iowa student whose body was found behind an academic hall several hours before dawn, according to the Associated Press.
At least seven deaths were linked to the cold weather, according to The Associated Press, including a man hit by a snow plow in the Chicago region, a man believed to have frozen to death in a Milwaukee garage, and a couple killed in a vehicle accident on an in road.
A man was killed in Libertyville, Illinois, on Monday after he was hit by a snow plow truck.
Tens of millions of Americans braved Arctic-like temperatures on Thursday as low as minus 56 degrees Fahrenheit (minus 49 Celsius) that paralyzed the US Midwest and were blamed for at least 21 deaths. At least three states - Michigan, Illinois, and Wisconsin - declared an emergency on Wednesday and Thursday.
More than 30 record lows were shattered across the Midwest.
In Chicago, life was expected to return to normal on Friday after days of face-freezing cold.
By the end of the weekend, Chicago could see temperatures as high as 10C (50F).
Detroit's outlook Wednesday was for overnight lows around minus 12 (negative 24 degrees Celsius), with wind chills dropping to minus 35 (negative 37 degrees Celsius).
Ice flows by the Gateway Arch on the Mississippi River in St. Louis, Mo., on Wednesday.
The chill drifted eastward on Thursday, bringing sub-zero temperatures to north-eastern cities such as Boston. Thursday is expected to challenge the city's all-time low record of 27 below.
"As the Arctic gets warmer and warmer, the severe weather picks up."
In Minnesota and MI, residents were asked by gas companies to turn down their home thermostats to help handle heating demands.
And while thousands of flights were canceled and delayed, mostly out of Chicago, the flight-tracking site FlightAware reported cancellations were down to just over 750 and delays just over 130.
According to Accuweather's RealFeel temperatures-which calculates how the outside temperature is perceived by the average person-the Upper Midwest felt like minus 77 degrees on January 29, where it was reported at Thief River Falls, Minnesota.
But U.S. President Donald Trump doesn't believe the scientific theory.
Environment Canada issued extreme cold warnings for most parts of Ontario, Quebec and Manitoba, urging residents to limit their exposure to cold and keep pets indoors.
In parts of rural northern Alberta, 15in of snow were expected to fall.