The question is whether it's supposed to sound like it's raining in the room rather than "outside" the house. I suppose it depends on what's being shown on-screen too, though....
I find a lot of rain effects sound like there's a glass dome above my head being pattered (i.e. real rain is heard when it hits the ground or whatever surface and thus many movies sound like they really want you to notice the overhead speakers with rain, but it should really be more the thunder up there and the rain all around on the bed level.
Meanwhile, I've got "Get Out" (4K UHD with DTS:X) and "Don't Breathe" (only 5.1, but it has ringing endorsements at AVS for incredible sounds and bass) coming tomorrow.