Augmented reality currently hovers around the "oh, that might be quite useful" to a "what the hell!", such is its relative infancy.
Here is one example certainly belonging in the latter category, produced a few years ago by MagicVisionLab to illustrate how weather could be added to a user's field of view.
Okay, so it's not instant snow in the Alps or Rockies, but you get the idea...
httpv://www.youtube.com/watch?v=8bkMiXiYUnk