Mia, Oliver Owl and Freddy Frog investigate how rain forms while working at their school weather station. As warm, moist air rises and cools, they observe how water vapour forms clouds, droplets grow and gravity eventually brings rain to the ground, while also learning to measure rainfall with a rain gauge. A fascinating learning story that introduces humidity, condensation, cloud formation, precipitation, weather measurement, and the importance of rain for plants, animals and the environment.