I want to travel yellow montain on 5 to 7 February, how will be the climate then?

According to the previous statistics, the temperature may range from 25 F to 30 F at that time. It will be very likely to be sunny days. But it will be cold on the top of the mountain. So you are suggested to prepare overcoat/down jacket, sweaters, long johns and pants.

Generally speaking, two days are enough for you to tour around this mountain scenic area. Have fun!