What type of food plots do you like to plant, David? We've been really dry in the southern part of the state. We could use some moisture. The corn is curling and there are large cracks in the ground.
For your dryer conditions, the one thing I would not miss planting in August would be purple top turnips... if the spacing is right, turnips do surprisingly well even when relatively dry. Frost is not needed to sweeten them as some might think because they naturally sweeten with age; planting now has them grow to their fullest potential (basketball size) and naturally sweeten in November, and deer will be digging through the snow to get at them yet in January.
I've planted lots of other things (too numerous to mention here), but the #2 thing I would plant in August is winter wheat because it has a higher attraction than rye until both freeze hard (though both grasses might suffer as long as it stays dry)... clover can be a good alternate as well (however I prefer to plant this in the spring to get better development)... the bottom line is to have something for nutrients (which they seem to gravitate towards in in mid to late December) besides the large scale carbs from turnips or corn.
In my years of testing, beets has the highest attraction with corn in second place and turnips third, but corn and beets take substantially more of a commitment of time and money, so turnips are always a go-to for me.