Is a sudden mediterranean summer rain good or bad for an auto in flowering stage? Does the buds recover afterwards from humidity or is the danger of rot and illnes to big?
I would build a cover for them out of Corrugated Clear Polycarbonate Plastic and some 2x4’s it will at least keep the rain from beating your buds. Best of luck to you with fighting the mildew and all of that. Be sure to keep an eye on it.