You'll have to do a lot more work these days to get the hell away from other people in Montana, but IT IS still possible. We just have to adjust our destinations and find legal lands or State Parks that aren't at the top of everyone's list.
Montana Fish, Wildlife and Parks continues a very popular campsite reservation program, enabling families to have a guaranteed space at many of Montana's state parks.
Weather this weekend does not look very promising for the camping. Unless you have a delux camper with sattelite TV and a deck of cards. Forecast calls for rain tomorrow and Sunday. But don't let a little drizzle keep you from taking advantage of the 3 day weekend. Just pack a jacket and a poncho. You will be fine.