Blowing Rock is the nearest town I usually go with for Beech Mountain weather. They say high of 39 Monday with rain at 50%. That probably translates to low to mid 30s and snow up on the mountain itself. The morning will be best. After lunch it will soften up and might all be rain but morning should be pretty nice skiing temps.
Here's the temp at the summit right now.. Right around freezing. They will likely be making snow within the hour and running the guns all night long until it gets too warm tomorrow.