We've had a lovely week-end in the 70's and 80's, but tomorrow the temperature is climbing. Tuesday will be over 100 and that will continue for who knows how many days. So yes, I will have the a/c set to 68 and fans on. The a/c is a window unit, though, so the kitchen and living room are cool. The bedroom will be very warm and the bathroom will be very hot. A/c when I'm driving.
We hope & pray for a breeze to come off the ocean and cool down the night. Our nights don't stay terribly hot and sticky like yours do. My apartment stays quite warm all night, though. I always need fans and sometimes the a/c overnight.
I didn't live in an air conditioned home until I was in my late 20's. I don't know how I coped before that, except that I was young, more resilient, and not on heavy meds.
The heat here is dry, like a desert. Only very occasional, mild humidity. I have experienced the heat/humidity of the deep south a few times and it was sheer hell. But the extreme heat here is no fun, either, especially because we are in such a severe drought. We used to get a day of cool rain near the end of July, but that hasn't happened for many years. Everything is so dry and dusty now.
Weather is so interesting to me.