Today, the use of additive technologies in production is becoming increasingly common as it enables the production of complex geometries with low material consumption. Additive technologies that use metal powders are often associated with high costs and production of smaller products. For our experiments we used wire and arc additive manufacturing technology using the CMT procedure (MIG process upgrade). In our work, we focused primarily on the analysis of weld interpass temperatures and the impact of these on product quality. We find out that the weld interpass temperature should not exceed 130 °C, otherwise errors in the product may occur. In addition, we learned that the weld interpass temperature changes evenly with the base temperature, which means that the base should be cooled down to lower the weld interpass temperature.