I used to do some long range shooting in Utah against people that used a Kestrel wind meter or other tools and I can say that they were very good at first round hits out to 1500 yards or so but there were other guys doing just as well without any tools. I was OK at estimating the wind but not as good as others, it takes practice.
That being said, I've lived in Arizona, Utah, and now in Montana and depending on the kind of shooting your plan on doing, you may or may not get any shots past 4 or 500 yards out west, especially if you are in mountain country. I've very seldom needed to make a shot past 300 yards and more often it's been more like under 200 yards.