Horrible here in MN too. It hit 57F here today, I think the previous record was only like in the 40s. We had a couple decent snowfalls in the last couple weeks, but it will all be gone by end of this week with these temps in the 40s and 50s all week.
I think the only place that will stay open here is Lutsen way up north, hopefully until end of March, although they say they are 'guaranteed' to stay open through April 15.
Hoping there is any sign of snow left by the time my trip to Big Sky & Jackson Hole rolls around.