That's starting to push it a little bit. If you're not careful and keep those temps down, you'll end up with heat stress and very unhappy plants. Optimum is around 78 degrees, but you can go up into the low to mid 80's without doing any damage. The further you push up from there, the closer you're getting to a tragedy. Is there a way you can vent some air into your tent from the room it is in since the temp out there is better. That would at least get it down some. That's the biggest problem I think tent growers have to deal with....heat. I would definitely be figuring out something for sure. TWW