Sometimes, when I roll down either of my two front windows, they make a sound similar to windshield wipers dragging on glass. It's obviously not as loud, however it is still noticeable. Does anyone else experience this?

It happens maybe 50% of the time I open one of the front windows. Haven't tried the rear, since I don't usually have rear passengers.

 

if its humid it might do that.

 

Most people are unaware that they should periodically lube the rubber part the glass slides in with some silicone spray. The windows will drag a little and can stick or make noise if left unlubed. Just get some and spray those areas then roll the window up down a few times as it dries to get it on the lower portion.

 

You have my permission to try the rear windows operation.

 

My 15 LX front Driver's side window makes a very labored motor sound going down when the inside of the car is hot from sitting out in the sun. I've been reporting it to my dealership every oil change for the past two years. They always claim they can not get it to repeat.
I think mine is caused by improper clearance between the glass and the seals on the door.
When the door gets hot, things expand some, and the window drags going down.
The other three windows work smoothly with out any funny noise.