With our current generation platform, you will need to implement something like maleficarum has suggested. Our next generation of hardware will have significant improvements when it comes to location tracking and that use case will become much easier. I would prototype with ble beacons for the time being and expect to not need these beacons in the near future. The hardware stack would be an Atom, some MCU (like an atmega), and some ble device. The Helium Element will create a RF network for the Atoms to connect to and transmit data from these peripheral devices.
There are many temperature sensors you can choose from depending on the precision and type of sensing you want (i.e. non-contact or ambient). These combined parts will make a module which you can track as they move around a warehouse. If you can join our community Slack, chat.helium.com, I can help you work through your the solution.
Does that help answer your question?