There is, normally, but it's typically motherboard or processor
specific.  If you have an Intel CPU, you might try to find the Intel
"TAT" program (TAT = Thermal Analysis Tool).  It reads the actual
temperature sensor inside the CPU chip.

There are only two reasons a CPU will normally over heat:  The "thermal
solution" is installed wrong (and if it was ok, this likely isn't a
problem), or more likely, the fan and heatsink are clogged with hair and
dust.  This is common (especially on laptops), and it's a
straightforward fix .... open up the laptop enough to clean out the
heatsink & fan with compressed air.  Sometimes this can be done entirely
from outside, you can always do a better job with some disassembly, but
the amount and difficulty vary greatly.  Most laptops need this every 6
to 12 months.

I suggest that you download, install and run I8KFANGUI30.EXE, originally written
for hot-running Inspiron 8000-series notebooks, but it generally works well on
most Dell notebooks.   It monitors temperature and allows you to control the
speeds of the internal cooling fans... Ben Myers