I have hunted CO and NM in September and anything is possible in the weather, its not possible to have one pair of boots that are perfect for everything. I actually take three pairs of boots. One pair is higher and gortex, with light insulation, just in case it snows. The two pairs that I wear the most and alternate most days so they can dry out in between. One are the Cabelas Elk Hunters, which are made by Danner, these I wear the most, no gortex or insulation so they breath well and dry out fast, I do treat them with silicone, so I have not had any problems with wet feet, other than sweat. The other pair are Danner hikers with gortex, but no insulation. I usually wear these if I think it might rain, but can alternate these with the Elk hunters as long as its not real warm. Most times in September cold feet are not a problem. Pick your SOCKS first and then wear them when you try on boots and get the best socks you can.