This is quite a fun page to read, it talks about the weather in all the planets, or at least those that have been examined by scientists just about enough; to tell what it could be like.
"The Windiest: Uranus and Neptune
We'll just skip methane-blue Uranus, because it's another really windy gas giant. Same with Neptune, except even more X-treme! Neptune's winds are the fastest in the solar system, reaching 1,600 miles per hour! Neptune has been known to have giant, spinning storms that could swallow the whole Earth."