The flatland and Pre-Alps (Hoch-ybrig, Flumserberg) area should see quite a bit of cloud cover on Saturday and some very cold temperatures. There may even be a little snowfall in places. Traveling a little further south to areas with closer to the main alpine ridge may have the benifit of some sunny spells. The best possibility for sunshine is probably Andermatt, but with temperatures of -21 expected if you decide to go there wrap up warm.
Sunday is looking marginally better in terms of sunshine for areas of Graubunden and the Pre-Alps. Once again the further south you it should be a little sunnier. The temperatures will remain bitterly cold, but snow conditions in the mountains should be quite good.
Weather for Swiss Resorts.
Andermatt
Braunwald
Davos
Flims/Laax
Flumserberg
Grindelwald
Hoch-ybrig
Lenzerheide
Saas Fee
St. Moritz
Zermatt
Ski season is here, get out and enjoy it.