Installed today's RC2 and found it included a weather app, called, umm, "Weather".
Strange how little weather apps and extensions seem so popular, when you can bookmark weather.gov or the Met Office or the local equivalent. But, hey, now we can all have one, and it actually works, unlike some I've tried.
A few weeks after updating the way Google handles weather searches on Android, Google announced similar functionality for tablet devices. Users can simply type in “weather” in their browser or on the Google search page.
I picked a beautiful day to road-test Earth's WeatherBug Elite app. It was a late-summer day on which the National Weather Service had just issued a Red Flag fire weather warning for my brush-fire-prone, tinder-dry neighborhood. Android weather app WeatherBug provides a set of current conditions, forecasts and maps. Extreme weather alerts and social network sharing functions are built-in too.
Ubuntu has no weather indicator by default since the switch to Unity. The only indicator I found in the repos is "indicator-weather". This one only half works. Sometimes the temperature next to the icon is gone (maybe the Google Weather API is to blame for this as I had the same trouble with a KDE weather indicator) and not all weather situations have a monochrome icon.