When trying to determine the age of a baby raccoon, there are a few things you can look for. First, check for teeth. A baby raccoon will have a full set of milk teeth by the time it is 8 weeks old. You can also look at the size and weight of the raccoon. A newborn raccoon will weigh around 4 ounces, while an 8 week old will weigh around 2 pounds. Finally, look at the fur. Baby raccoons have very soft and fluffy fur, whereas adults have much stiffer fur.