My friend Bob goes from A to B leaving tomorrow morning at 6:00. There are many direction services that indicates him short, fast and/or cheap routes. Bob does not like to drive under the rain and wants to know which weather is forecast along different routes.
To help him, I would like to develop a web service that enriches existing direction web services and provides him with the "weather profile" of his trip from A to B. Such weather profile could be represented like on the following image (taken from the excellent Norwegian website www.yr.no), except the X axis would be the travel time (or distance):
Do you know if such service (or comparable) already exist?
Do you know some useful weather forecast web services to develop such thing? The requirement would be a service that provides for any location (lon,lat) a forecast (temperature, rain, etc.) for a given date/time.