drying to Fast?? Too soon for cure??

Drying should take 1 or 2 weeks and it all depends on the region and the season. On summer seasons, and very hot and dry regions, it's better to cut entire plants and hang them out full, without cutting any extra fan leave, as they will retain humidity and help to slow drying. On winter seasons or very humid regions, it's better to fully trim the buds and cut any fan or sugar leaves, leaving only the flowers. Your case is strange because 15C and 45 RH is on the winter side, so they should take a lot, unless you're not hanging them but storing on cardboard boxes or something similar. In any case, after drying, always remember you need to cure the buds, that's another 10-30 days where the green (chlorophile) is actually degraded and the grass flavour dissapears. Keep on the great care! Happy smokes!