It is a common problem on GM N body cars like the Grand Am and Alero. The door seals are subject to premature wear and IMO poor quality. The air rushing sound or any rattling sound like the door being loose gets worse in the colder months. Check the door alignment from the outside in relationship to the body. Gently push in around the back of the door by the handle and see if you feel any slop as you push inward. You can make an adjustment on the door latching assembly. At the doorframe is a latch/striker plate that can be adjusted to give the door a better seal. There are two Torx T40 bolts you can loosen and then move the plate inwards. It will also adjust upwards/downwards/outwards. So do it carefully and in small increments until the door feels tight but without affecting overall alignment with the body and door latching/release. Before making any adjustment scribe the plate with a pencil or marker so you will be able to get it back to the original position just in case.