If you search for a 'weather plus a place name' in Google, you'll usually get a OneBox displaying a forecast for the next few days. On tablets, that box has now been enhanced to include a graph of the upcoming forecast temperature or rainfall probability, as well as enhanced graphics.
As Google Operating System points out, this means tablet users actually get a more detailed set of information than desktop searchers. What options you get vary depend on the location; Australian cities don't have the choice to see detailed wind predictions, for instance. The new options work on iPads and Android tablets.
Google's Weather OneBox for Tablets [Google Operating System]