Is there a setting to get dark the sky when its raining? The sky still stay blue.

same issue here, version 1.12.2-2.6.12 without any other mods enabled except coroutil 1.12.2-1.2.30. I tested some older versions and still had the issue. Is there maybe a wrong configuration?

Which version do you use? I never had such a dark sky, sometimes even the sun was shining :D

is it supposed to be dark like this?

No.. this is annoying sometimes to

well i know it can at one of the version or something because it happen before but do you have any other mod that affects rain setting like TAN or maybe a season mod. and is the weather settings is default?