For anybody who is still using their mobile browser to get weather information, Google has made a neat addition to their mobile site. By searching "weather," you'll see the new widget, and in addition to the same information you'd see regularly, it now has a slider that allows you to see an hour-by-hour forecast of the day. Temperature, wind speed, precipitation, and humidity will change, as will the background of the widget to reflect the time of day.
This isn't anything too different than what you would see in a weather app, but the fact that it's all done within the browser makes a strong case for the future of web apps. For now, however, it's just an awesome effect.
Note: Currently, this only seems to be functional for those in the US. Also, it doesn't seem to work in Dolphin Browser HD unless the slider is disabled.
Source: Google Mobile