You can see the current CPU Temperature in the below files

$ ls -l /proc/acpi/thermal_zone/TZS*/temp*
-r–r–r– 1 root root 0 2010-11-08 11:05 /proc/acpi/thermal_zone/TZS0/temperature
-r–r–r– 1 root root 0 2010-11-08 11:05 /proc/acpi/thermal_zone/TZS1/temperature

$ cat /proc/acpi/thermal_zone/TZS0/temperature
temperature:             51 C

$ cat /proc/acpi/thermal_zone/TZS1/temperature
temperature:             52 C