These are two awesome sites. The first one lists general trail information while Bushducks lists trail conditions. I used these to plan my trip last year to UT and CO.
According to Bushducks, as of two weeks ago, Medano Pass was open but some possible high water crossings.
Moosehead can chime in on the trail condition in the sand. I'll be eyeing this info as well, but I don't plan on hitting this area until early July.