From Flagstaff, take Hwy 40 west toward Williams. About 5 miles before reaching the town, take the right exit toward the park entrance. Drive to the Grand Canyon visitor center near Mather Point, and then take the free shuttle to Yaki Point.
In November, the weather can be changeable from rain to heavy snow to brilliant sunshine with fluffy clouds, all in the space of a couple of hours. Make sure you have raingear for yourself and your camera, along with cool-weather clothing.
It was my last full day in the park, and I wanted to go to the eastern-most stop that the shuttles along the South Rim made. When I told the bus driver I wanted to go to Yaki Point, she looked at me doubtfully. It was snowing rather heavily, and she told me I probably wouldn't see a thing. I wanted to go anyway. Sure enough, large snowflakes and a curtain of gray surrounded me. After less than 5 minutes, though, the gray curtain parted to allow a little sunshine to light up the canyon scenery at this viewing area.