The weather is warm and dry what changes would a cold front bring

Before a cold front comes:The temperature will be warm.

There will be short rain showers.

During a cold front:The temperature will decrease and become cold.

There will be heavy rain with hail, thunder, and lightning.

After a cold front has passed:The temperature will continue to drop.

The rain will stop and the skies will clear.

A cold front separates a cold, dry air mass from a warm air mass.