I'd go Sunday instead if you can..Saturday is going to be the last day of the warming spell, with snow Saturday night for us here in the PNW. Saturday will probably be the worst day in the last few weeks because its going to all be freezing up now that the freezing level is dropping.
I highly recommend this site
Stevens Pass 6 Day Snow Forecast for 1781 m (c) Snow-Forecast.com - Snow-Forecast.com
I started using it for Meadows last season and its always been accurate.