Weather forecast: Direct Link for info in specified location on specified time

I have a calendar web application. In the event detail view I would like to include a link to a weather site, which displays the weather for the event location and the event time.

Something like this: http://freeweatherinfosite.org/show-weather?location=Berlin&date=2011-06-23&time=1100GMT

A link for an ifra开发者_开发知识库me or a "widget" with this information would be nice, too.

I am not looking for an API.

Try this weather.com feature

It asks you a few questions and then generates the widget code for you

Update: Here are 5 more alternatives