If you come to WI you must try brats & beer, Friday Fish Fry, hot ham & rolls on Sundays, Summerfest at the lakefront (Milwaukee), all the other cultural festivals at the lakefront, Harley has it's big parties in Milwaukee if you are into bikes, Madison is it's own thing, some call it The People's Republic of Madison. Our State Capitol (no, Green Bay is not the Capitol) is pretty liberal and we are a tax hell at the moment with more to come. Is your husband willing to become a Packer Fan? Packer games are THE entertainment during the season from Sunday to Sunday for many including radio & news.
The weather can be a challenge for those who have not experienced -20 degrees. Not many like that but a few throughout the winter. The past couple years we had lots of snow! Fall is absolutely gorgeous and our weather guys include a fall color report in the weather. Spring is outstanding, though that could be because of the long winters, fishing along the Mississippi is supposed to be pretty good. Many state & county parks. We have lots of lakes to fish & boat in as well. Have you ever gone ice fishing? Door County was already mentioned but that is another place for fish boils and famous Door County Cherries and anything you can make out of them.
SE WI seems to have been settled mainly by Germans, Polish, some French. There is a great Bastille Days in Milwaukee. The cultural festivals at the lakefront include Germanfest, Irishfest, Indian Summer (the Potowatami's have a casino in Milw), African American, Greek Fest, there was a middle eastern one but I think it got canceled last year, not sure if the Chinese one is still going either. New ones pop up though, private funding keeps some going.