I don't know how cold it is here in Mid and northern lower Michigan but the entire area is closed down- they started posting them last night. Yesterday it only made it to 2 degrees, and overnight water pipes were freezing up. They were warning people to stay indoors all of yesterday.
I don't know about other places, but we have had a lot of blowing and drifting snow and country and side roads are very dangerous, that added with the freezing temps ,caused school districts to close.
This is HIGHLY unusual. I believe it's because last Thursday they made the dumb decision to cancel school because of a little snow.
Early in winter they cancel for a dusting. Because we have to make up our snow days at the end of the year, by the end of winter their use of snow days becomes much more judicious.
We were on a hockey road trip with our youngest over the weekend--Milwaukee & Kenosha. 2 degrees was the warmest temp that I saw. My oldest son drove up from Chicago to watch one of the games. He's going to school down there & working at a Jiffy Lube part time. I had the usual Care Package from Home for him plus some of those Hot Hands hand warmers. He's not one to be overly impressed with the Care Package, usually. But I thought he was gonna cry when he saw the Hot Hands. I promptly emptied the car of all the other hand warmers we had on board & gave 'em to him.