Welcome to Epicski,
Heavenly should be great this weekend. Weather predictions for Friday are chance of showers (a warm storm so it might rain on the slopes) but a light storm and it should be gone by Saturday but you know how accurate weather predictions can be.
My suggestion, if you can, go in on the Nevada side. It's usually less crowded and there is great terrain on the Nevada side.
Apres ski, most locations allow for casual attire. If you are in Friday night, and don't mind spending a little extra money, The Forest room at the top of Harrah's (buffee) has a great seafood buffet. It's pricey but I think worth it. Pace yourself on eating. And if you don't want to wait in line, get there early. (4:30 -5:00) so you are there when they open. They do not take reservations.
Have a great time.