  We introduce a reweighting technique which allows for a continuous sampling
of temperatures in a single simulation and employ it to compute the temperature
dependence of the QCD topological susceptibility at high temperatures. The
method determines the ratio of susceptibility between any two temperatures
within the explored temperature range. We find that the results from the method
agree with our previous determination and that it is competitive with but not
better than existing methods of determining the temperature derivative of the
susceptibility. The method may also be useful in exploring the temperature
dependence of other thermodynamical observables in QCD in a continuous way.
