Infant observation mirror assembly with temperature display for attachment to a top portion of a rear vehicle seat includes a main panel having opposed front and rear surfaces and a mirror embedded in the front surface thereof. The mirror assembly further includes a temperature display section defined on the front surface of the main panel. A positioning base is coupled to the rear surface of the main panel. The main panel is pivotably attached to the positioning base for allowing rotation about a horizontal axis and a vertical axis. A mounting harness attaches to the positioning base. The mounting harness removably attaches to the top portion of the rear vehicle seat to hold the mirror assembly in a selected lateral and vertical position on the rear vehicle seat.