Glucose today announced the release of WeatherPop Advance 2.6.1, a menu-based Weather viewer that is always visible and up to three times more efficient than Apple’s Dashboard weather widget, notes the company. This release includes a variety of weather data accuracy improvements. Specifically, they have improved the US government weather data source and fixed problems with international cities. WeatherPop is available now for free and WeatherPop Advance is available for 14-day demo, and can be purchased for US$8.