- Login to https://ide.smartthings.com
- Go to devices tab (https://graph.api.smartthings.com/device/list)
- Click new device button in top right corner (https://graph.api.smartthings.com/device/create)
- Choose whatever you want for name and network id. Change type to SmartWeather Station Tile. Choose your location. Leave everything else alone.
- Click create.
That should give you a functioning weather tile.