Ask HN: Options to display weather info for world-wide locations?

http:getLocalNe.ws - our new site has individual pages for about 9,000 locations across some 240 countries world-wide. We wish to display current weather info (buttons) for as many of these locations as we can. We've already implemented AccuWether's code for all US locations (which appears to be working fine) and they do have a coverage of around 150 countries. We're already exploring this as well as a couple of other options. Can HNers with some experience on this suggest some alternatives that we could look at? Thanks in advance. ps. If you're up to it, please review and provide feedback on the site too: http://news.ycombinator.com/item?id=2305689