Why is there such a big difference in temperature between today and tomorrow?

Affected by airflow. Airflow is an academic term in meteorology. Especially the vertical movement of air. The movement of air (wind). Its speed is expressed in meters per second (m/s). The reason for air flow is the temperature difference caused by uneven heating. Hot air rises lightly and is supplemented by cold air flow, forming convection. Due to the influence of air currents, the temperature will drop rapidly.