I think the Weather Channel may have just been dethroned as the coolest, sleekest weather app for Android. Moxier World doesn't have the handy tabs for current conditions, hourly forecast, thirty-six-hour and ten-day forecasts that the WC app has. But the graphics are more polished; from the icon to the flick-able city list and beautiful weather illustrations. It does relay a five-day outlook in addition to the current weather.
Moxier is also a world clock. It's pretty convenient to have rapid access to the time and weather conditions for everyone you care about around the globe. Weather Channel adds video, GPS functionality, and probably hosts more practical features. But Moxier World is a lot more fun to use, and glossy graphics almost always serve a phone well. Whichever you prefer, Weather Channel and Moxier World are definitely the top contenders.
The program is known as WorldNow in its iPhone incarnation, seen below.