Are there black widow spiders in Minnesota?

Question

Are they anywhere such as Wisconsin or Iowa for that matter?

Answer 1

yes, i had one...of course i brought her from wyoming. i guess the can be found any where, although they like warm, shady, dry climates...

Answer 2

Yes, they occur naturally in Minnesota.  There are three species of black widows.  In Minnesota, you get the Northern black widow (Latrodectus variolus).  

http://bugguide.net/node/view/26421