I've not noticed appreciable wind noise even at 80 mph in my '04 - in fact I was commenting to my wife how quiet it was. Tire noise is the biggest factor at a steady cruise speed.
Perhaps your window seals leak, or the door is warped. I had a '97 Bonnie which had a warped window frame that caused wind noise - I rolled the window down and carefully "bent" the frame back closer to the body and 'fixed' the noise.