According to multiple sources, including, a steak cooked to medium rare is typically cooked to an internal temperature of 130-135°F (54-57°C). At this temperature, the steak will have a warm, red center with dark pink edges, and will be tender and juicy. It is important to note that the temperature of the steak will continue to rise after it is removed from the heat source, so it is recommended to remove the steak from the heat source when it is about 5 degrees away from the desired temperature. This will allow the steak to reach the desired temperature while resting.