Apple Watch has been interesting to experiment with. It's still somewhat limited in terms of what capabilities developers are permitted to access on the device, but here's a small demo I put together called WeatherWheel.
WeatherWheel taps into the Dark Sky API and retrieves 12-hour temperature data based on your current location. It then translates these values into a custom color palette and displays them similarly to a clock face. With a turn of the Watch's crown, a different section is highlighted to see what conditions will be at a later time of day