Is the weather forecast indoor temperature or outdoor temperature? What was the highest temperature in the past? how many degree? Why?

Weather forecast measurement is stipulated by the World Meteorological Organization.

Simply put, put a leaf box on the lawn that is not exposed to direct sunlight and ventilation, put a thermometer in the leaf box, and measure it at a distance of 1.5 meters from the ground.

The impression of the highest temperature in history is that 1 year Chongqing reached 48 degrees, and everyone died. I have never heard of anything higher than this. When you say 50-60 degrees, it's probably desert temperature. I wonder how many people will die when the city reaches 50-60 degrees. Heatstroke patients rushed directly into the hospital.