Cumulus clouds are fluffy, white clouds that float high in the sky. They usually mean that the day is going to be sunny and there will be good weather. These clouds are the types of clouds you see in happy movies or T.V. shows! Cumulus clouds are condensed water that is still not ready to fall from the sky as precipitation, but i can become a storm cloud if it evaporates and condenses more water. Cumulus clouds means get out and enjoy the outdoors!!