I am planning a trip up to Milwaukee sometime around the middle of May. I have not spent much time in that area and wanted to throw a couple of questions out there. First, the weather... I assume I can plan on some rain and some cooler temps, Im just not sure HOW cool. Any input on the averages for upper Wisconsin/Mich/Minn for that time of year? Second...Any 'must ride' roads or sights we need to plan for up that way? Trying to avoid the 4 lanes and see some of the country. Any ideas are appreciated.