METAR Plot for Apple Watch displays station models (plots) as well as raw METARs for most airports worldwide, using current METAR data. 

The app features two stations lists: nearby and user-defined. While the entire station database can be used offline (to add station or lookup nearby station), an internet connection is required to load METAR data. Data is updated automatically.

Preferences can be set for type of flight rules and units (visibility, temperature, and pressure). Options for observation time in LT or UTC as well as sort order of user list.

The app works completely independent from your iPhone and includes complications for watch faces with rectangular and circular types.