  As the minituarization of electronic devices, which are sensitive to
temperature, grows apace, sensing of temperature with ever smaller probes is
more important than ever. Genuinely quantum mechanical schemes of thermometry
are thus expected to be crucial to future technological progress. We propose a
new method to measure the temperature of a bath using the weak measurement
scheme with a finite dimensional probe. The precision offered by the present
scheme not only shows similar qualitative features as the usual Quantum Fisher
Information based thermometric protocols, but also allows for flexibility over
setting the optimal thermometric window through judicious choice of post
selection measurements.
