Late October is REALLY risky for Idaho. I personally wouldn't take a chance going so far to get froze or snowed on.

Have you thought about Little Sahara, UT??? Much warmer but no hookups although they do have water there if it isn't turned off by the time you get there (OCT 31 or so it gets shut off and restrooms get locked up for the year).

 

Idaho that time of year is cold, cold, cold!!! You don't want to be hauling in the snow from Cedar City to Rexburg. Little Sahara Utah is going to be cold too. Glamis is a long haul, but if you want to enjoy the ride I would go there, less chance of winter at Glamis.

 

Oh ya, Gene is a jerk, you can have fires just no marshmellow fights, and the showers over by the check in are much better. We usually have a wife or someone drive over to the parking lot by the pond(dust bowl in July) with a truck loaded with gas that way we can play around a little and don't have to worry about running dry..

 

Utah is closer and warmer. But St anthonies shoud be fine at the end of october. I'll be there next week myself. But I live in Utah so I'm at sand mountian 30 weekends a year. We still go year round, even new years eve. Might as well go to utah and ID on the same trip. Why not? As long as you're up here, sample the goods.