Why does the weather forecast in the mobile phone change in the air-conditioned room?

The weather forecast in mobile phones changes in air-conditioned rooms for the following reasons.

1, in different environments, the mobile phone will generate heat, and the temperature will rise. The indoor temperature and the external environment temperature should be connected to maintain a relatively stable temperature.

2. The weather forecast is the estimated average value of the area, and the temperature in the air-conditioned room is different from that outside, that is, the temperature changes.