This paper describes a preliminary demonstration and validation of temperature imaging using hyperspectral ${\mathrm{H}}_2\mathrm{O}$ absorption tomography in controlled experiments. Fifteen wavelengths are monitored on each of 30 laser beams to reconstruct the temperature image in a $381\mathrm{mm}\times 381\mathrm{mm}$ square room- temperature plane that contains a $102\mathrm{mm}\times 102\mathrm{mm}$ square zone of lower or higher temperature. The hyperspectral tomography technique attempts to leverage multispectral information to enhance measurement fidelity. The experimental temperature images exhibit average accuracies of 2.3% or better, with pixel-by-pixel standard deviations of less than 1%. In addition, even when the internal zone is only $4\mathrm{K}$ cooler than the surroundings, its presence is still detectable; statistical analysis of the associated experimental image reveals a 98% confidence that the internal zone is in fact cooler than the surroundings.