what is the temperature like in jiuzhaigou at the end of october

According to the previous weather statistics, the temperature during that period of time was 50 F to 70 F. It will be a little bit cold. Beside the T-shirts and jeans, you are suggested to bring a light jackets in order to adapt large temperature difference.
In addition, from the end of October to the middle of November is the best time to visit. The leaves turn colorful. You can see the most beautiful scenery.