Re: Water Temps - Heat Wave
Heat can certainly change things up.
Fishing tailwaters(bottom release/penstocks) can be a better place to fish, as the cooler water is being released from the bottom and fish will tend to look for this.
Also consider fishing much earlier or later in the day.
*Comments posted above are only my opinion. I may be right....eh, I'm probably wrong. Take 'em for what they're worth.*