A Weather Interaction Theme?

I just downloaded a DesktopX2 theme called Night and Day which alters the background and a sun/moon depending on the time of day. It actually logs into weatherbug or something similar I think to find the time and not my internal clock which makes me wonder. Is there, or could somebody make, a theme like this one that changes according to time, but also weather? So if it's night and raining outside it'll be night and raining on my desktop? I think that'd be really cool. Even have a little text update or something in one of the corners with the temperature and stuff? If anybody knows of something like this or would like to take it on as a project I would be really thankful and impressed!