Core Temp: View the temperature of each of your CPU coresCore Temp is a free, stand alone utility that shows the temperature of your CPU. However, unlike other temperature monitoring software, Core Temp will show you the temperature of each individual core in each processor in your system. It will show you the temperatures in real time so you can see the CPU temperature varies depending on the load on your CPU.

This compact application also has a logging feature allowing you to log the temperature over a period of time. Core Temp works on both the 32 and 64bit versions of Windows 2000, XP, and 2003.

Screenshots:
Core Temp: View the temperature of each of your CPU cores
Showing the temperatures of each of the cores on my Quad core CPU

Core Temp: View your Core Temperatures in your System Tray
Showing the temperatures in the system tray

Downloads:
Download from Official Site – 81kb