scp [file path] [user]@[host]:[destination path]
wget -O [destination path] "[file path]"
So first thing is to start Screen and Weechat:
You may also want to set the timezone to match your local time, rather than the server's time. you can use the 'TZ' environment variable for that:
TZ='Australia/Melbourne' screen chat
Once you're in sign into the channels you want, then press Ctrl+a then d to 'detach'. (Typing screen -r will reattach, screen -ls will list all sessions).