City have not a weather ID.
There are no cities with weather ID settings in Singapore.
Weatherandtime.net gives you the opportunity to host the weather and time widgets Singapore on your site, as well as other Singaporecities.
The procedure for obtaining the code is very simple. Click on the "Get widget", select a country and city, as well as additional design elements, Get the code to paste on your site.
Get weather widget for Singapore.
Singapore weather forecast for 15 days. Today's weather in Singapore,Singapore.