You mean like outside ambient temperature?

If the GPS receiver outputs the temperature reading, the software will give a audio cue telling whether it's getting warmer or colder along with the actual temperature.

The only minor issue with the temperature at the moment is that as the sensor is located inside the GPS module, the temperature usually grows couple of degrees (celcius) after start-up. But that can be fixed with a piece of code which automatically corrects the temperature for the first 5-10 minutes after power on.

Kim