It works, but not what I was looking for.
While the app works, I find the interface doesnt take advantage of the Macs screen size and it seems more suitable to the iPhone or iPad. The app does give a bit more information than the built-in Macintosh weather widget, such as hourly forecasts but leaves off things like weather maps, rain amounts, humidity, etc. I also found the program attempts to "phone home" upon launch (www.demodit.ch port 80).
Mikeintosh about
ClassicWeather