Most of winterboard weather widgets use the weather.yahoo.com api to show weather.

Some widgets use zip code (such as 2459115)

Some widgets use weather location code (such as USNY0996)

To get zip code, you simply follow these steps:
1. Visit Yahoo! Weather and search your city/town.
2. Select the appropriate result and go to that page.
3. Find a series of numbers at the end of the page's URL. For example, this is New York's: http://weather.yahoo.com/united-states/new-york/new-york-2459115/
4. The highlighted code above is the zip code.

To get weather location code, you simply follow these steps:
1. Visit Yahoo! Weather and search your city/town.
2. Select the appropriate result then go to that page.
3. Find the RSS image link and click it.
4. Find a series of letters and numbers at the end of the page's URL. For example, this is New York's: http://weather.yahooapis.com/forecastrss?p=USNY0996&u=f
5. The highlighted code above is the location code.