A weather forecast is a prediction of the weather conditions expected over a given area in the next few days. The forecast is based on data collected at weather stations, satellite data, various types of sensors, and computer models. The accuracy of weather forecasts has increased significantly in recent years.
Subtopics and examples include deterministic forecasting, statistical forecasting, climate prediction, nowcasting, and ensemble forecasting.
Other technologies that are relevant in this context include Doppler radar, lightning detection, cloud detection, wind detection, high-performance computing, and cloud computing.