A weather front is a boundary between two different air masses, which can have varying temperatures and humidity levels. When these air masses meet, they can create changes in weather conditions, such as rain, snow, or thunderstorms. There are several types of fronts, including cold fronts, warm fronts, stationary fronts, and occluded fronts, each affecting the weather in distinct ways. Cold fronts occur when a colder air mass pushes into a warmer air mass, often leading to sudden storms. In contrast, warm fronts happen when warm air rises over cold air, typically resulting in gradual precipitation. Understanding weather fronts helps meteorologists predict changes in the weather, aiding in safety and planning.