My Dutch Passion Strawberry Cough hated high temps...still has scarring and burning on it from when it used to hit 92* regularly. I was in transition between grow sites, so nothing to be done for it. Now she's reaching 79* tops and loving life. Ultimately, the issue was the roots' inability to absorb certain minerals at that high temp; sativas should LOVE 90 degree weather, but they evolved with their roots deep in a more stable temperature earth, not a 6" pot full of loosely sifted coco coir! If you can mimic evolutionary conditions in the root zone and canopy, the plants should tolerate a lot of heat/light stress from the ambient environment.
Edit: given enough free floor space/living conditions, portable AC units in your grow room can be a great way to keep temps down, and they facilitate a sealed room setup which allows for CO2 enrichment and more control of odor throughout the grow.