Wheeler scored in the final minute of the second period and Victor Hedman tied it for Tampa Bay midway through the third.
Ondrej Pavelec made 30 saves to get the victory. Garon stopped 22-of-24 shots.
Tampa Bay's Steven Stamkos, who leads the NHL in scoring and was held without a point only three times in 12 games during January, assisted on Hedman's goal.
Beyonce flaunts bikini body, Blue Ivy in vacation pics
Jordana Brewster on Paul Walker: 'He was an enormous presence in my life'