Most of the buds weight is gained in the last two weeks, yes. But if your thricomes are already cloudy, that time should have passed by now, so either you are misjudging the thrics, or your plant lacked training.
Hi there! If you're right and trichomes are mostly cloudy, then it means the harvest window is open! So it's too late for buds to fatten up, you need to harvest now (after a good flush) or your trichomes will degrade and loose THC. Moreover, your current temperature will speed up the trichomes degradation process, so you may want to act quickly and harvest asap. Keep us up-to-date and enjoy your harvest!