Weather models are computer programs that simulate the atmosphere to predict future weather conditions. They use mathematical equations to represent how air, water, and energy interact in the atmosphere. By analyzing current weather data, these models can forecast things like temperature, precipitation, and wind patterns for different regions. There are various types of weather models, including global models that cover the entire Earth and regional models that focus on specific areas. Meteorologists, or weather scientists, rely on these models to provide accurate forecasts, helping people prepare for events like storms or heatwaves.