As to weather, well it's possible to be cold, (freezing) no matter how far south you go. Consult with farmers almanac and the Weather with Andrew, which is a world wide analysis of probable temperatures due to major influences like El Nino, Artic fronts, (which move south), and pressure centers at the surface. As to any places having open sites, that's about 5% so if they are booked ask to be put on cancel last minute list. I think the weather is predicted to be mild, and not freezing, but that could change.