The nearest planet to the Sun starts the season entering the evening sky, although it's washed from view by the glow of twilight until November. However, just after sunset, the plane of the solar system (or ecliptic) is at a shallow angle with respect to the horizon, which keeps Mercury very low and barely visible in the east-southeast, even when it reaches greatest eastern elongation on November 6. Scooting back into the glow, it reaches inferior conjunction on November 27, then passes into the morning sky, eventually creeping out of the dawn glow and becoming visible in early December (don't mistake it for brighter Venus). It reaches greatest western elongation on December 15, when it's separated from the Sun by 21 degrees and rises about 35 minutes before Jupiter and more than an hour before dawn. Mercury rings the year to an end with a close-encounter with Jupiter on December 21, when the two are less than a degree apart in the morning sky. Then, it joins a bright, conspicuous line of solar system objects (Mercury, Jupiter, Venus, and the Moon) on the morning of the 31st.
The Moon passes nearby on October 9, but the encounter is too close to the Sun to be seen. Its pass on November 9 might be visible with difficulty. After Mercury moves to the western side of the Sun, the Moon passes nearby on the morning of December 5.