Poll Aggregator 538: Wisconsin Projected Vote Share for Nov. 3: Trump=46.9%, Biden=52.1%
Nate Silver's Poll Aggregator 538 projects the Vote Share on Nov 3rd with a 5.2% advantage for Biden.
https://projects.fivethirtyeight.com/2020-election-forecast/wisconsin/
A [Fox News Poll](https://static.foxnews.com/foxnews.com/content/uploads/2020/09/Wisconsin.pdf) (with an "A-" 538 poller rating) released on Weds and conducted from Aug 29th-Sep 1st contributes fairly significantly to the projection due to recency and poller rating. It gave Biden 50% and Trump 42% of Likely Voters. This poll was conducted only a few days after the unrest in Kenosha and should be considered fairly volatile, but could help provide insight into the initial reactions from Wisconsinites.
*Just a personal note: Nate Silver and 538 is considered by the vast majority of Mathematicians and Statisticians to be an accurate reflection of today's current best understanding of polling science. I should know... I have a degree in Math and work in IT/Business Intelligence with many other Statisticians and Data Analysts and I also have a brief history as an Actuary.*