Of course we know that in the upcoming update for the PC phenomenon Minecraft there will be introductions of weather and achievements, and now we can see those things in action in the video below. The video is a preview of how things will work once the update goes live. Now there has not been a release date...
The 1.4 beta update for Minecraft just rolled out, but Notch is hard at work already on the next one. Update 1.5 will have weather effects like snow and rainfall, which could have gameplay implications such as filling holes with water, watering crops, and putting out fires.
The image above is an example...