So, I've been thinking about this suggestion for a while and I'm not sure if it's a great suggestion or not so I decided to post some basic info about the suggestion so people can tell me when it's good or bad.
So, night and day, they're almost the same with the difference being the spawn rate of monsters, it's almost very predictable of what would happen if it would turn to night or day or whatever, weather is nothing mostly but most of the things I say about weather is disasters, which are currently in a mod so I think it's pointless to add that, so:
Drought: Spawn rate of passive mobs are reduced by 50%, hunger depletion is increased by 10%, undead mobs take as twice as damage from sunlight, random fires and crop growth is halted. Usually can occur in normal temperature biomes with a 2% chance every minecraft day, 5% when in hotter environments. Sun becomes orange. Lasts for 2 minecraft days.
Solar Eclipse: Light level decreases drastically, hostile mobs are faster, more resistant and stronger, fatigue, hostile mob spawn rate increased by 25%, 0.1% chance of occuring.
Lunar eclipse (blood moon): 0.01% chance of occuring within the night, you can't sleep, any mob can spawn regardless of biome or light level, hostile mob spawn rate increased by 50%, when blood moon ends, all hostile mobs die at dawn.
That's basically what I have in store currently, so if you like it then I appreciate it, if you think it's not good then that's better, but if you are just gonna hate on me then get out.