This widget is made for
the DoubleC HD Theme
Apply widget in winterboard. To change your city code u need to go to yahoo.com weather section, type your city or state and copy the numbers at the end of the web address for example, i live in NYC, my code is 2459115, copy this numbers than you will need to ssh or use an app like ifile to go to /var/stash/Themes.xxx/ DoubleC HD Weather.theme/Weather/ and open 'configuredMe.js' and replace the var locale code with your own city code.
If you need any more help
visit my blog
See Screenshots for more info.