An area of high pressure at the jet stream level has built itself into the central U.S., allowing for a steady flow of out of the south at the surface and preventing cool fronts from approaching the area.
Therefore, a steady diet of daily highs around ninety is in the forecast through Sunday.
This wind-flow will begin to change on Labor Day Monday as a cool front drops into the area. Showers and storms will begin to pop up in the area once again. This threat for rain lasts into much of next week.
Temperatures will cool next week. Eventually, the Ozarks will see high temperatures back in the seventies by the middle of next week.