According to NASA, Mars was 35.8 million miles (57.6 million kilometers) from Earth at its closest point this morning. In August 2003, Mars was a smidge closer: 34.6 million miles (55.6 million km). Mars won’t be that close to Earth until 2287, according to a NASA update. Mars will reach opposition again before then. In October 2020, the Red Planet will reaches opposition and will be 38.6 million miles (62.1 million km) from Earth, according to NASA’s update.
You can see Mars tonight by looking to the southwestern sky. Weather permitting, Mars will be visible low on the southwestern horizon, with the moon shining to the upper left. Saturn will also be visible, as shown in the map below.