Clouds are formed through the condensation process when warm, moist air rises and cools down as it encounters cooler temperatures at higher altitudes. As the air cools, water vapor within it condenses into tiny water droplets or ice crystals around condensation nuclei. These cloud droplets eventually grow in size, and when they become large enough, they form visible clouds that contribute to weather phenomena like rain, snow, or fog.
Enter the temperature at the Earth's surface (in Celsius) to calculate the condensation level: