Why is the weather in Jiuzhaigou reported differently in every place? Which one should I trust

Jiuzhaigou is located in the plateau, where the clouds are unpredictable. In addition, due to the influence of mountains, the terrain precipitation is stronger. Someone once described the weather here like this: In the cloudless sky of Wan Li, suddenly a shower caught up with that dark cloud. It is said that the weather here is unpredictable. Of course, you can trust the weather forecast, because it is quite accurate for a large area of weather.