[Outdated server due to new 1.16 update]

hi everyone,

When i try to log into my server it says it is outdated, there should i upload my world to a new server, ( would my world then have the new nether update etc whilst in my old world). Thanks if this makes any sense.

[How to toggle thunderstorms and rain]

Hi everyone, im new to using servers etc, i was just wonder could anyone help, as on the server it rain's and thunderstroms practically every 5 minutes, i was wonder is there a server command or anything like that which can completely turn off the rain and thunderstorms, instead of just delaying in for a couple minutes with, /weather clear. I tried toggle rain but it said there was no command.  

Thanks