Did you get to the Icehouse on Nicollet on Monday? Jazz there every week, and during dinner on Fri/Sat. Last night they featured Anthony Cox, JT Bates, Mike Lewis and Luke Polipnick. If I wasn't playing elsewhere that's where I would have been.
Your best bet for tonight would be the Artist's Quarter in St. Paul.
Google Blackdog Coffee and Wine Bar as well, plenty of jazz on their calendar.
Also, Jazz Central (artist co-op) in NE Mpls. Should be something going on tonight and tomorrow.
There is a calendar on the right hand side of this page: http://jazzpolice.com/