As Steve mentioned it is important to know the wind direction AT YOUR STAND. I like to pay attention to what the wind does at my stand compared to the actual wind direction. A west wind may look good on a map but due to the terrain affecting the wind a northwest might be needed to hunt the stand. I think you can only figure this out by hunting the stand and finding out.
Then note your findings for future hunts. A few places where I have really noticed this are field corners and swamp edges.