I always hunt the wind...I check the weather before I go, I get on the computer and check which way its blowing or check my weather radio...
Occasionally they are wrong but its not the norm...Fortunately I work for myself, so if I decide to go at the last minute, the only person I have to ask (or let know) is the wife...

I know which way the wind should be for each of my stands, if it's wrong, I will not hunt that stand.