After several days of heat and humidity, the pattern is changing. This change in the jetstream flow will cause the bulls-eye of the heat to become centered over the Desert Southwest rather than the Central and Southern Plains.
The first week of July should become almost unseasonably cool with lows in the upper 50s to lower 60s over Eastern Kansas and highs in the upper 70s to lower 80s.
However, the flip side of this pattern will be a near-record setting heat wave over the West. Temperatures may climb through the 110s to lower 120s in parts of Arizona and the deserts of California by early next week. At this point, once the pattern shifts west, there is no clear sign of when the heat will make a return to the Plains as a prolonged period of pleasant weather settles in for the first days of July.