Why is the weather so unstable these days! !

Landlord, the reason why the weather turns from cold to hot: this is caused by the pressure difference between the atmospheres.

Direction of air flow in high pressure area between atmospheres

Low pressure area

This is the wind,

If the air temperature in the high pressure area is low, the air flowing to the low pressure area is cold air, and the temperature will drop.

On the contrary, it is high.