I am guessing you mean wet floors and wet textures on characters when inside your structure while it is raining in game. Not actual raindrops falling through most structures. I haven’t checked to see if the stormglass angled glass ceiling still allows raindrops through (actual falling drops, not just wet textures). As i understand it, this is a limitation of the engine. On PC, there is a mod that addresses this, but has the side effect of the rain not affecting anything outside of structures either.
So, rain that makes nothing wet or rain that makes everything wet.
Up to you how much you let this limitation bother you.