Yes it does! The required presssure to create liquid metallic hydrogen in Jupiter is around 3 million atmospheres and the required temperature is about 11.000° Kelvin.

Quote from "www.mira.org" (Monterrey Institute for Research in Astronomy) on planet Jupiter:

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Because Jupiter's interior is so hot and compact, we cannot visit it. Thus, all interior has to be inferred from the knowledge about its density, rotation rate, composition of the atmosphere, its heat ratio and its influence on the orbits of both natural and artificial satellites. With this information, Jupiter's interior is thought to be as follows:

A strong concentration of mass is located in the center, or core; it is thought to be made up of rock and ice.

Above the core, a layer of liquid metallic hydrogen extends up to 59,000 km. The pressures in this region are so great, that the electrons are freed from the hydrogen nuclei and are able to flow and conduct electricity like a metal. This state of hydrogen has never been achieved on Earth. The pressures are around 3 million atm, and the temperatures about 11,000 K. The rotation of Jupiter, along with its metallic hydrogen interior are thought to be the cause of its strong magnetic field.

Above the metallic H, liquid molecular hydrogen is present, up to 71,400 km, where the pressure is thought to be 10 atm. Jupiter's magnetic field is generated by its metallic hydrogen core coupled with its high rotation rate. Jupiter's magnetic field is the strongest of all the planets on the solar system.
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http://upload.wikimedia.org/wikipedia/commons/a/a3/790106-0203_Voyager_58M_to_31M_reduced.gif
Source(s):
http://www.mira.org/fts0/planets/099/text/txt002x.htm

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