Polls open from 07:00am - 8:00pm.  If you are in line by 8pm, you will be able to vote.
Or vote early by mail,  MyVote.wi.gov
MyVote.wi.gov is your one-stop source for voting info.  Register to vote, update your registration, learn what's on your ballot, locate/confirm your polling place, learn names of your elected officials are, and much more.
Statewide, there may be local primaries on the ballot, such as court of appeals, circuit court, county board, school board, etc.
Additional info: 
https://bringit.wi.gov/  for Information about acceptable forms of photo identification for voting, and more
https://elections.wi.gov/ Wisconsin Elections Commission 

More info under Members -> Political Action, on this website