Install:

# apt-get install lm-sensors

Load module

# modprobe coretemp

My laptop CPU temperature… lol

# sensors
acpitz-virtual-0
Adapter: Virtual device
temp1:        +70.0°C  (crit = +96.0°C)
temp2:        +60.0°C  (crit = +113.0°C)

coretemp-isa-0000
Adapter: ISA adapter
Core 0:       +66.0°C  (high = +100.0°C, crit = +100.0°C)
Core 1:       +71.0°C  (high = +100.0°C, crit = +100.0°C)