An apparatus for migrating data in a tiered storage architecture includes one or more processors and one or more memory devices coupled to the processors and storing instructions for execution by the processors. The instructions cause the one or more processors to: track temperature (i.e., frequency of access) of data blocks in a tiered storage architecture; generate heat maps indicating the temperature of the data blocks across different time intervals; process the heat maps using an image processing algorithm; compress the heat maps to reduce the size of the heat maps; compare the heat maps from the time intervals to identify temperature patterns occurring over time; predict, from the temperature patterns, when selected data blocks will change in temperature; and migrate the selected data blocks between tiers of the tiered storage architecture in anticipation of their changes in temperature.