I spent some time yesterday looking for a weather webservice in order to develop a webpart that shows forecasts ... and I have to say that United States are well desserved, but Europe seems late.

I found mainly 3 webservices :

• capscience : get the current weather report (with a little delay), but only the current (no forecasts).
• ejse.com : get the current weather and forecasts (until 9 days !) everywhere in the United States (according to the zip code) or the current weather in ... Iraq !!
• NOAA : get complete weather conditions and forecasts, with icons ! Just input the latitude and negative west longitude and it gives you what you need ... if you are in the United States. Nothing is said if forecasts are right for european locations ... (Note that you can get weather by an RSS feed !)

So, I think I'll have to look through the window and write my webpart with what I see :-) And imagine for the following days ... Seriously, if you know that NOAA data are valid all around the world, or if you know another weather webservice (in Europe ?!), please let me know as a comment to this post, I'll test and update the list !