Beside occasional disastrous impacts of weather, weather also affects daily life. Societal and environmental challenges of the future include both providing customized weather information in-time due to users' needs, and detecting climate change and its impacts on land and ecosystems. The accuracy of weather and climatic information is, however, limited by spatial and temporal borders that need to be overriden. Also, weather information services cannot be fully customized, a problem arising from the spatial inaccuracy of weather forecasts and observations. Here, the role of social media, collective and civic intelligence and crowd sourcing should be investigated. This paper envisions a community of weather-interested users that provide usable observations of weather and environmental change, and presents a web-based interface for this community as a new method to collect weather and climatic information. User-generated weather observations can be processed based on principles of collective intelligence and co-creation, in order to improve, customize and personolize weather information. 1.1 Reasons to Talk about Weather The development of weather services through history has been connected to: (1) inventions of new communication technologies, and (2) incitements to save lives and property. Some early attempts to organize weather observation networks were