|Google Weather Frogy|
Recently Google available its most initiative feature for some user's to improve it's weather application user interface. google now one step ahead providing within update with the little frogy in various style.
Searching "weather" might show you a card asking if you'd like to "Access weather instantly from your Home screen." If you tap add, a shortcut will show up on the homescreen. This may seem a little superfluous, as Google has weather available through Google Now, and possibly in your notifications too. That might be why they're testing it. Maybe they want more people to see the pretty new weather cards in Search. Or it could just be Google being Google, having multiple solutions to achieve the same goal.
Remember, now its on beta testing features. this seems like a very limited test. If it's not showing up, you're not alone; many user's aren't seeing it either, but one trick can give you some chance to receive it from google. login with 4 to 5 google acount in your mobile and switch multiple time's when searching "Weather" on Google. it will increases possible chances to receive weather shortcut from google like me.