Some scenario calculations of the local atmospheric circulation in the Krasnoyarsk city and its visinity are carried out based on a mesoscale non-hydrostatic model of atmospheric dynamics. To simulate the mesoclimate of the area, the processes of formation and evolution of near-surface and elevated temperature inversions are studied. The results of the calculations show the behavior of inversion layers in the urban atmosphere due to of interaction of the large-scale atmospheric fields and the orographic and thermal features of the underling surface.