Weather issues and time of day are irrelevent to the question as they are not within control of the hitter.
The largest force acting on the batter's attempt to create backspin is the pitcher. After all, he's trying to throw the pitch (velocity, location and movement) that the hitter is not expecting, or will be overmatched by.
BTW, I'm not so sure of the hooking (or slicing) foul being "top spun" as much as "side spun". lol