A documentary on the history of weather forecasting and the contribution of Meteosat and MSG. The first weather predictions in ancient times were always uncertain and based on myths, folklore and generations of experience. Weather forecasting was advanced by the invention of the barometer and has developed significantly in the computer age. Meteosat and the MSG satellite brought Europe a big step forward by providing an real-time image of the weather, increasing the accuracy of long- and short-term weather forecasting.