It hasn't gone under 81 in my apartment since this whole smoke started; and my office tends to sit at 83 on the ground.
That's because it wasn't necessary until the last 10 years or so. 90 degree days were uncommon and night temps would dip low enough to cool most places in the evening through the next morning.
* any apartment not facing North is going to be experiencing the sun for a LOT of the day during the summer
* most apartments are only facing a single direction, so you can't get through-air to go from one side of the house to the other to pull the cool air from the "not with sun" side.
* Washington houses love big windows that seem to take up a whole side, so it's just heat from the sun all. day. long.
* many apartments are on the second floor, or higher, so heat naturally rises and there is a real consequence to that.
In the winter, I've had to open my window to keep my old apartment under 80 while on the 4th floor with no heaters running (aside from my desktop computer and other normal electronics).
At least I have an air purifier...
I can think of one, small silver lining to these fires:
I recently read that Asian giant hornets had recently been found in the PNW, and if they weren't wiped out in a few years they'd become permanently entrenched. I find that prospect absolutely terrifying, so perhaps we'll get lucky and these fires will wipe them out.