Search Octoberfest WI. I just did and there are some I may attend.
Copper Harbor would be great for colors.
In my area I would recommend: https://skyhighcampingresort.com/
They are Passport America on week days. One of the few places I have been to that look better than their pictures. Thirty minutes or less to: Madison, Baraboo, Portage, Dells, Devil’s Lake SP, Cascade Ski Resort, Mid-Continent Railway Museum.
I ended up there the first week of construction on my neighbor’s house.