The trail can be crowded most any weekend. If you want to avoid the crowds go during the week. November weather brings cold temps and possibly snow/ice later in the month and at high elevations, like Calloway peak. check out Grandfather Mountain's webiste, Grandfather Mountain. I would pay close attention to the weather forecast before your trip just to be sure. One of my favorite hikes is from NC 105 over Calloway peak to NC 221 and back over again. Its tough but very cool. Keep in mind that there are ladders you have to climb up so if its really icy I might want to avoid it and hike the Profile trail instead off of NC 105. Its a great hike though. Have fun!!
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Climb the Mountains and get their good tidings...
-John Muir