I'm in the planning phase of a project and one of the requirements is that the system be able to get the current weather conditions for any point on Earth, given a set of latitude-longitude coordinates.
I signed up for Wunderground.com's Weather API, but immediately realized this wouldn't work. If you enter a set of coordinates that doesn't correspond to a known city, the API returns a "querynotfound" error with the description "No cities match your search query."
Does a service like this exist?
EDIT: To clarify, I might need the current weather conditions for some arbitary point in (say) the Atlantic ocean.
Have you looked at google api?
http://www.google.com/ig/api?weather=,,,40467626,-03609910&hl=es
I think this is what you are looking for Using Google Weather API with Lat and Lon - how to format?