What we have is a normal summer heat wave being pumped up as a natural disaster. It's completely normal for all of the affected areas to experience humid, low-90-degree days in the summer. Pull up a weather map right now: The only 100-degree readings are in the lower plains, where they're expected in the summer. It's not even a remarkable heat wave, let alone an indicator of a spiraling climate. The climate is spiraling, but it's not helpful to conflate seasonal weather with climate.
The troubling thing is that when the media and weather service cry wolf, the public is conditioned to not take their warnings seriously. In years past, the weather service would issue a Heat Advisory for a heat wave like this, not an Excessive Heat Warning, which is reserved for the most dangerous conditions. The warning was issued too early, with insufficient forecast confidence; temperatures have underperformed in the midwest. A warning for a truly dangerous heat wave will eventually go unheeded.