This, I have concluded, is why man invented air conditioning.
However, when those cold fronts move down from the north the skies turn clear blue, the humidity falls and the nights are very cool. On other days the fronts move northward, the humidity skyrockets to 85-90% and the thunderstorms commence as the front moves by.
A couple of days ago we were treated to a sudden shift in weather as a warm front moved northward. Rain began at about 4:00am and by 7:00 we not only had a significant downpour, but then we were treated to hail. However, a few hours later the sun dried it all out and we biked to the lakefront and discovered that the sun worshippers were at the beach. As this weather "tug of war" goes on, we also get some wonderful rainbows.