weather api

Hi all,

I'm looking for a weather service that I can query for weather
forcasts. It 's imoprtant that it works for European countries.

Idealy I would send it a timedate and postcode and it would send me
the weather. Beeing it free is ofcourse a big plus.

Someone has knowledge of such a service?

Regards,
Stijn

http://developer.yahoo.com/weather/