As of v1.3.7, the "cave" dimension does not have clouds disabled! To my knowledge this is a pretty simple fix in the datapack's json. This is obviously funny to look at and should be fixed.

In latest release, no more clouds, but a bit of eerie fog.

@kwpugh Could this fix be backported to 1.18? Most of the mods I use aren't available on 1.19 unfortunately, so my personal modpack is on 1.18.

since it is a one-line change I will update 1.18.2

Awesome, thank you! 😄