Well, you certainly aren't going to get the MOST out of this grow if you can't get the temps down, but if you have females you'll still get buds... They'll just be fluffy & airy, and probably not as potent as they could be.
Circulation is good, but you need some fans pulling fresh cool air into the grow space and some fans pulling hot air out.. If you can do that, your temps will drop into the high 70's- low 80's and your plants will love you for it.