It is quiet because of the rain, if there’s a break in the clouds it could ramp up.
If you want to see what’s going on outside the DNC fence - check this twitter feed for live stream video: (NSFW-language)
https://twitter.com/Cernovich/with_replies?lang=en
(the last one was some Westboro-Jewish protest - before that someone tried to burn a flag but a black Trump supporter stopped it)