Tonight, May 20, 2025, the Moon is in its Last Quarter phase, also known as the Third Quarter phase. This means the Moon is about three-quarters of the way through its orbit around the Earth. The illumination of the Moon is approximately 48%, with the left side illuminated if you are in the Northern Hemisphere and the right side illuminated if you are in the Southern Hemisphere. The Moon will rise around midnight and set around noon the next day