Obviously I think we know the extent of the heat is way overdone, but if not, it's very hard to see that verifying. First off, there is likely to be some sort of at least weakly diffused [cold front] boundary somewhere within the region. Based on the flow aloft and how it looks to potentially be convectively active across the northern Plains (closer and just north of the international border) we are going to have potential to deal with lots of high cloud debris...heck, maybe even chances for convection. If we were seeing 850's of like +24C to +26C or whatever being modeled...might be a bit more optimistic because we all know models tends to back off on those as we get closer.
Anyways...one of these days we will see an outcome like this verify.