Ideal temps during flower?

Ok so, I don't see too much heat damage. I see some other things though. The plants are stretching because of too little light. topleaves are drooping down, indicating too much water in the medium. Then you have some white tips at the top of your plant, suggesting these get too much light. If stems are realy woody already, it might be too late. But if you can get a more even canopy by bending higher buds downward, defoliating underside, giving each branche same light you can still make a killer harvest. So check watersituation and consider drying them out further before next watering. With bending just do inches at a time, easy going, if u guide it and never stretch to far you can even bend the woody stems in a curl, but patient and little bit per budsite at a time! Good luck!!