Download Single Player Commands and watch a tutorial how to install it. Then after download complete.
Press the button "T"
Then type in /weather rain or /weather sun or /thunder on
or /thunder off or /thunder 55 (the 55 stands for seconds)
Not a lot of people know about mods and installation. So Good Luck to you.
Chat with our AI personalities
Unfortunately, you can not change your name on Minecraft!
You can change your minecraft clothes if you change your skin or download a mod.
Look up the default controls on the minecraft wiki page, go to the control settings in minecraft, and change them.
You cannot change yourself into weather, but if you are looking to find out how to make it snow in Minecraft, there are two ways to do this. One is by going to a biome with snow on the ground or ice, and waiting for it to snow. The second way can only be achieved by commands, and it is by again finding a biome with snow or ice on the ground and typing /toggledownfall
On a bukkit server, if you have permissions, you can do /thunder, /lightning, /smite or commands like /weather set storm to get the thunder/lightning effect. It all depends on the commands you have on a server. In singleplayer you would have to change the weather by doing "/weather thunder"