What causes the wind to happen?

Before the wind even starts blowing, we must look toward the sun for this answer.

Incoming solar radiation heats the surrounding land and water which then produces heat for the Earth’s surface and atmosphere. But not all surfaces or locations heat at the same rate. This difference in heating creates a difference in air pressure. The resulting "pressure gradient force" causes air to move from areas of high pressure toward areas of low pressure. This movement of air can be considered the wind.

Most often we observe what is called a large-scale wind circulation, which is driven by low or high-pressure centers. This wind pattern may affect an area in the range hundreds or thousands of miles. However, wind can also be felt on a local scale such the Lake Ontario lake breeze.