The core of the heat has shifted ever so slightly to the west as the weak back door cool-front positions itself just south and west of the Quad Cities. Areas around the Quad Cities and points southwest will still see temperatures in the low 90s today with a good deal of humidity. To the northeast, temperatures will be more tolerable with highs in the upper 80s. The brutal heat will nose its way back across the area both Friday and Saturday sending temperatures into the mid to upper 90s. This transition could spark an isolated coverage of showers and thunderstorms during the later day hours on Friday. By Sunday, a much stronger front arrives later in the day. An isolated shower or storm is still possible along the front but once again coverage looks to be widely scattered. However, the front will finally put an end to the late season heat wave! After seeing highs in the upper 80s on Sunday, numbers drop even more by Labor Day when readings will only reach around 80 degrees. This will be a common temperature for daytime highs through most of the next week.