Why is there such a big difference between the forecast temperature and the measured temperature?

Meteorologists explained this yesterday: "This is mainly caused by different measurement methods and environments". At present, the temperature monitoring data of our city comes from observation stations or observation points in relevant districts and counties, which are set according to national standards. The temperature announced by the Municipal Meteorological Observatory is the atmospheric temperature measured at the height of 1.5 meters. The measurement method of citizens is closer to the somatosensory temperature of outdoor citizens.

In the monitoring environment, the simulation of the natural state by the Municipal Meteorological Observatory must include the lawn on the ground, indirect sunlight, ventilation in the louver box and so on. In which the thermometer is placed in a louver and the measured temperature is the actual temperature in nature. The temperature measured by citizens indoors or outdoors will definitely be affected by these environments, so it will be different.

Can we understand that the temperature predicted by the weather forecast must be at least +7℃ to be the actual temperature we bear?