Police say the two cars were unlocked with the keys inside at the time of the thefts.
One car was reportedly found in a snow bank, the other was located on the side of a road.
Corporal Joe Mitchell says eight to ten other vehicles were burglarized Sunday morning, with a variety of items still missing.
Police are following leads in the case, but if you have any more information contact the Madison Police Department at 696-4149.
Mitchell is urging people to lock their vehicle doors and to not leave keys in the car.