I just finished a trip that clinched all the Illinois state routes (I'll deal with Historic US66 later), all the US routes in Wisconsin, and enough Michigan routes that I should be able to clinch what's left in that state in a day trip. US10 and US53 are done now as well.
Apparently I missed the opening of the bypass around Macomb, Illinois, by a few days, so I will lose my system-wide clinch soon. Its opening has been pushed back several times over the past few months. I spoke with a state trooper while there to test his opinion on sneaking past the barriers, and he suggested calling IDOT, since they had let some people on it already. Unfortunately the project managers had left for the day when I called, and no one in the office was authorized to let me drive it, so I went on my way. If another trip in the early planning stages happens later this year, Macomb won't be all that far out of the way.
Weather was beautiful except for about an hour of rain one day. That hour coincided with my visit to Mackinac Island, and my clinch of M-185 on a rented bike. It started out light, but was a full-on thunderstorm within 15 minutes. So I managed to race around the island in less than an hour and turn in my bike with time to make the ferry back to St Ignace; I was soaked, so browsing the shops on the island no longer seemed worthwhile. The rain stopped by the time I got off the ferry.