Humidity is okay. If you can get it higher (just by keeping some containers full of water in there or whatever), some books say that increases the percentage of females, if you can get it to 70+ percent. Whether that's true or not, I dunno. 97.7 degrees F is not good though, yikes. Time to put some serious work into your ventilation system. Try to get the temps down to 85F at least, and lower if at all possible.

You should also kill off every plant except one in each pot. If their roots grow together, and you get a male, then what's your plan? If you hack off the male, its roots could (and likely would) start rotting and kill your females or at least infect them and hurt their potential. If you plan to just grow the males too, if you get any, and make seeds, then it makes some sense to just leave them there I guess. If your goal is seedless sensimilla, best to get it down to one plant per pot now before it's too late.