Glucose today updated WeatherPop and WeatherPop Advance, the popular utilities that display current weather conditions in your menu bar, to version 1.5.1. Users of previous versions of WeatherPop must upgrade to version 1.5.1 because all previous versions no longer work. The new version allows users to select between multiple sources of weather data and also corrects a critical performance problem that has affected many users. Further details on the changes included in this release can be found here. WeatherPop (freeware) and WeatherPop Advance (US$8) are available for Mac OS X.