We went in end of February early march. For us the weather was perfect. Typically 50-60. However we did get occasional rain a couple of days. I did love the pool in the rain but bear in mind they don't seem super keen to offer poolsise service during the rain. We flew into Las Vegas then drove from there. Just under four hours as well. Very easy drive (much easier than Athens to Amanzoe). Four nights there was perfect. We did spend two nights in LV on the way back at the MO which was underwhelming to say the least.
Fdw