 Heat and humidity, those are the top themes of this week. The heat wave will not back off. Tonight, we're going to drop down to the mid-70s. And then tomorrow, highs in the mid-90s with a heat index close to 100. Can't rule out a thunderstorm. That would help cool us off. But still, most of us stay high and dry for most of the week. Wednesday, back up into the heat in the mid-90s. I'm meteorologist John Aarons for Channel 9 Eyewitness News.