We're supposed to be in the low hundreds the next few days, fortunately the humidity is pretty low. Yesterday the swampy was putting out 70 degree air when it was 99 outside.
I've got a couple of portable ac units last year when the smoke was so bad that we couldn't run the swamp coolers. They did ok, but only had a single hose to dump the hot air outside, so they kind of bring in warm air as well. I got a couple of double hose kits for them for this year, where they will take in outside air and then exhaust it out. It's supposed to greatly increase the efficiency, but I haven't needed to try it yet.
My favorite way of cooling off is to go out to the pool with a refreshing beverage in the late afternoon and float around like a manatee, lol.