I plan to visit Shangri-la in early June and Meili snow mountain. What's the weather like?

In the city and at the foot of the mountain, the temperature may range from 10 to 20C, and some rain may come. You can take your shirts, jeans and sneakers.
The temperature can drop to 10C below zero up the mountain. So you are suggested to take your warm clothes, like sweaters, thick jacket and boots.