Thermometer is a simple app to use temperature sensors to show the temperature.
Super Thermometer is a simple app to use the temperature sensors in your phone to show the temperature near your phone. Very soon this will become your default way of checking temperature.
Please make sure your phone has a temperature sensor, otherwise this app will show you temperatures from web services.
Use of internet connection is optional, and internet + gps are only required for devices not having an integrated temperature sensor.