The reliable and straightforward METAR-Reader and Weather app for Pilots.
Runway crosswind components are automatically calculated based on the current METAR. A Widget which can be configured to display either decoded METAR or raw METAR / TAF is also available.
As a bonus the app offers access to NOTAM for the weather stations, which will be downloaded, in part decoded and which can individually be marked as read. This way you can easily keep track of new and relevant NOTAM.
New weather stations can be found worldwide by ICAO or IATA-Codes, airport name or city. They can be organized in user defined groups - e. g. for your most common routes or alternate airports. Additionally an auto-managed group always presents nearby weather stations.
For use during the night, there is a dark theme which can be activated either manually or automatically by the system (depending on your Android version).