What is radar-wise?

RadarWise is a custom weather card for Home Assistant, an open source home automation platform, that adds a detailed weather panel to a Home Assistant dashboard. It shows current conditions, hourly and daily forecasts, humidity, wind, dew point, sunrise and sunset times, and an optional live radar view, all pulled from a weather source already connected to your Home Assistant setup. Because it reads from an existing Home Assistant weather entity rather than calling its own weather service, it does not need or store any private weather API keys inside the dashboard configuration. Radar imagery defaults to different public sources depending on region, using NOAA radar in the United States, Environment Canada radar in Canada, and a global radar service called RainViewer everywhere else, including as a fallback option in the US and Canada. The card still shows current conditions and forecasts in other regions such as Australia or Europe, though radar coverage and local weather alerts may be more limited there. The card comes with a visual editor inside Home Assistant so it can be configured without hand writing YAML, though YAML configuration is also supported for more control. Options include several layout presets, drag and drop panel ordering, adjustable panel widths, multiple supported languages, both Fahrenheit and Celsius units, and radar playback controls like pausing and stepping through frames. It also supports optional fallback sensors for temperature, humidity, and dew point when the connected weather entity does not provide that data itself. Installation is recommended through HACS, a popular community add on manager for Home Assistant, added as a custom repository since the card is not yet listed in the default HACS store. It can also be installed manually by copying a JavaScript file into Home Assistant's local resources folder. The project was previously named WeatherWise and includes a compatibility layer so dashboards referencing the old file name continue to work after upgrading.