The Bears (7-6) pulled even with Detroit in the division race on a night when the wind chill factor was below zero. Dallas (7-6) fell a game behind Philadelphia in the NFC East.
The conditions didn’t stop McCown from throwing for 348 yards or keep the Bears from running away with a lopsided victory after consecutive losses.
Dallas quarterback Tony Romo threw for three touchdowns.
Former Chicago Bears player and Super Bowl-winning coach Mike Ditka had his jersey retired at halftime Monday night.
Earlier in the day, Illinois Gov. Pat Quinn declared it “Mike Ditka Day.”
The Hall of Fame tight end’s No. 89 was retired.
The Bears showed highlights of his playing and coaching career and rolled out the red carpet at midfield before he walked out to a thunderous ovation.
There were more video tributes from players, and chairman George McCaskey told the crowd the honor was “a long time coming.”
With the 1963 championship and Lombardi trophies along with a Hall of Fame bust alongside him, Ditka said he’s “been living a dream for 74 years.”
Ditka was the 14th Bear to have his number retired by the team.
“You don’t play the game or coach this game with this in mind,” Ditka told reporters afterward. “It’s the icing on the cake, the final candle, whatever you want to call it. It’s been a hell of a run.”