Over 100 F yesterday with minimal cloud cover but as the sun sets clouds build, a sort of heavy overcast, which kills radiation cooling, trapping heat, so that we start the day hot and go on from there. That's been a pattern the last few days and it's nothing if not diabolical. And it's very calm. No breeze to speak of. That does not help.
Within a very few years, deaths due to heat will outnumber deaths due to gun violence in this country, if that hasn't happened already. In fact more people are now dead due to excessive heat than any other weather related phenomena. Flooding? Nah. Heat alone is killing more people each year. It's a trend, you see. If you don't see, you are truly effing blind.