The power of WeatherBug, on your Today Screen! Customizable weather forecasts. It provides easy access to WeatherBug’s mobile website for detailed weather conditions. plus you caan show the weather notification on the Taskbar.

I have not tried this myself but i think its only for US cities, If anyone do try it plz let us know

Source : weatherbug.com

=== DOWNLOAD===

From the developers Website ( may be they have a new version )
WeatherBug Direct

Tags: weather, WeatherBug