I hate skiing in r*in, but the forecast does not show it on the weekend. Of course that's 10 days out and subject to change. I plan on skiing every Saturday and Sunday, plus my breaks for as long as Whiteface is open.
Currently it looks like a thaw during next week, and a cool down by the weekend. As of now, it does not appear that Whiteface is making any attempt to expand terrain beyond Excelsior-Valley-Fox and is instead trying to build base depths before opening. That may be the best decision because they won't have to resurface after the thaw and can go directly to new terrain.
I've lived in New York my entire life.