‹(•¿•)› Heat Issues ( I need HELP ) - ( ô¿ô )

My room is averaging 88 degrees and I'm flowering. It just starting getting this hight the last few days due to our temperature outside rising. I'm air cooling all of my lights and I have 3 sources of fresh air coming in as well. This is my first heat problem

1.) What are some quick methods to reduce the temperature of my room?
2.) I only have about 3 weeks left of flowering?
3.) How long does it take for this high temperaturen to damage my THC?

Thanks

i added a floor register in my bloom area, 2.5x12 with a 6inch register duct adapter. fit a 6in 250cmf inline fan under my house, and blow the cool air from my crawl space into my bloom room. i will also be adding a ceieling fan (70CMF) to move the heat out that is up on the ceiling, thru my roof and out the roof via a roof stack vent.

before the floor vent, my bloom rooom only had air movement from a box fan. would get up to 96*F. (no plants in it yet, was testing heat issues once light was running) after my floor register setup, on high, it dropped from the high 80s (never let it get up to full heat before i turned the floor fan on) and with in 30 minutes, i dropped from 88* to 67*f. so im confident, i can loose up to 20*f with the setup. once the ceiling fan is installed, i expect to be able to dump out anohter 20* from high in the room when needed.