Bow Hunting in hot weather
That first week of Deer bow season had been tough for me. The temperature is always up the mid-80s in Western Arkansas.  Needless to say one does not have to wear heavy clothing or even long sleeves while hunting during this time. 
I Arrived at one of my stands around 5:00 a.m. My stand was located on the south side of a 140 acre farm, facing north about 15 feet from one of the most heavily traveled deer trails on the property. From my stand you could see an open field and a beautiful pond on the other side of it. I settled in and was ready to do what deer hunters do best, patiently wait, and wait A little more. Fifteen minutes later to my surprise a beautiful 9 point buck strolled right past me. I released a beautiful shot hitting him right above the right shoulder. I had that buck checked in and was eating my breakfast at the coffee shop by 8:00 a.m.
Bow hunting in the heat is something one has to get accustomed if they don't want to give up a good part of the early season. Early-season hunts require some strategies we can use to succeed when the temperatures are far better for sunbathing than stick-and-stringing.
The most important thing to remember when bow hunting is deer are wild animals that have to eat to survive, sooner or later every evening and morning they will have to move to find food. Deer do not like overly warm weather. Once they shed their summer coats, whitetails are physically prepared for colder weather, even if the weather is still hot. The more they move, the less comfortable they are, and so they tend to arrange their patterns so they don't have to move any more than is absolutely necessary. The most important constant when hunting in the heat is that deer bed very close to food sources.
Hunters can take advantage of this tendency for deer to bed near fields when the food is scarce and the weather is warm. Don't make the mistake of hunting just any transition zone between field and woods. Make sure that the deer have a secure place to bed far enough away from your stand so that they won't see you entering the area or climbing into your stand.
During an average year the food crop is, of course, average. That means some areas will have considerable amounts of acorns while other locales will generally be lacking. Remember, deer will be bedded very close to these food sources when the weather is unseasonably sultry.
When hunting spotty food sources during hot weather, it is best to locate food areas that can be accessed quickly and quietly both in the dark and in the evening. These areas include logging roads that run by oak groves, acorn-producing oaks that border fields and heavily bearing hardwoods that are situated near streams. The noise of the running water can mask a hunter's approach. While on the subject of water, I have not found that positioning stands near ponds, spring seeps or running water of any kind improves my chances of seeing or killing a deer when the weather is hot. The deer seem to be able to gain sufficient moisture from the foods they eat during the early season to preclude them from visiting water sources anymore than they do when the weather is more seasonable.
The third scenario, heavy mast production/hot weather, is without a doubt the most difficult to deal with. Not only do the deer not move very often because of the heat, but they also only have to travel short distances when they do so because of the abundance of food. Deer sightings are quite low in years such as these, and the bow harvest tends to plummet.
The only way to cope with the above scenario is to become a run-and-gun bow hunter. Look for the most recently fallen acorns that you can find, and put up your stands there. If you don’t see the first time you hunt an area, move on to another locale the next time out. Don't erect a stand somewhere because you have had success there in years past. In short, keep on the move, don't be loyal to past stand sites and always look for fresh droppings, recently gnawed acorn shells and newly fallen acorns.
If you are of a mind to lure in bucks during hot weather, consider making very soft, social grunts. These so-called contact grunts are natural sounds at this time of year and could possibly lure a buck in.  Spend time in the woods, and keep a positive attitude. Even if you are not seeing deer now, you soon will.
Shell Shocked Outdoors