Git workflow with upstream repository

Hi, I'm trying to figure out the best way to work with two remote
repositories: one origin and an upstream repository.

Basically, with one remote origin I do 'git fetch' and then a 'git
status' which tells me my status as compared to my remote at which
point I decide wether I want to rebase or pull/merge.

If I'm working with another remote repository 'upstream' that I
perhaps don't have permissions to and then my branches are not
tracking against, how would I do something similar to be able to first
see how my branch compares to the remote and then either rebase or
pull/merge.

Am I missing something in git status that allows me to see my status
as compared to another remote?