Today, the weather on Luhman 16 is partly cloudy with a good chance of molten iron.

Luhman-16 is a binary double brown-dwarf system located approximately 6.6 light years from Earth. Observations over the rotational period of Luhman 16B has revealed splotches of uneven surface illumination that scientists suggest are patchy clouds of varying density. This is the first time such observations have been made about a Brown dwarf, and the discovery gives scientists insight into the possible weather on giant planets with orbits so close to their stars that they are lost in the glare.

Brown dwarfs are failed stars, much cooler than our Sun, and therefore emit a majority of their black-body radiation in the long infrared wavelengths. In February 2013, Kevin Luhman aboard NASA's WISE spacecraft discovered that the third "star" to Earth, Luhman-16, was actual a binary system of two brown dwarfs. This was significant in that brown dwarfs were previously too faint and too distant to observe in such detail.

The scientists used the Very Large Telescope (haha..) in Chile to observe the patterns in Luhman 16B's atmosphere using Doppler imaging, which utilizes the variations in the intensity of blue and red shifted light from the edges turning towards and away from Earth, respectively, to map out the surface.

Although the brown dwarfs are similar in temperature (1500 and 1450 Kelvin for Luhman 16 A and B), their weather patterns differ. Luhman 16A displays a featureless atmosphere, showing no fluctuations in measured intensities. Luhman 16B, however, did have variations. These, observed over several trials, showed to be varying day-to-day.

The most shocking part of this phenomena is that the clouds are not as we see on Earth, and do not contain any water. The intense heat of the brown dwarf, along with an orbital period of only 5 hours (almost twice as fast as Jupiter, our fastest spinning planet), creates vigorous atmospheric conditions that suspend silicate particles and molten iron in the atmosphere.

http://physicsworld.com/cws/article/news/2014/jan/29/nearby-brown-dwarf-has-partly-cloudy-skies