Well if you mean rutting right now, then I would say pretty much not at all, if any. There is virtually no true rutting going on this early anyway, just some immature bucks chasing does just to be chasing does. If you mean the effect on the real rut later on, who knows. I really don't think it will matter as long as it's cooled off during the pre-rut period. The way I look at it is it's the middle of October; it HAS to start cooling down and staying cool sooner than later......right?