You can't scout deer patterns (trails, feeding habits, etc..) this time of year since they will change by the time hunting season rolls around. Trail cameras and visual observation of deer can provide you insight as to how many and how big the deer are where you hunt. Most of the scouting I do in the summer is scouting for things like food sources, funnels, and good trees to hang treestands from. Of course, this time of year, I spend more time looking for ticks and snakes than I do anything when I'm in the woods. Looking at satellite and topo maps from the comfort of my air conditioned home is a preferred method of scouting this time of year as well.
