1. Open http://www.wunderground.com/
2. Find country you are interested in
3. Look at the ICAL icon on the openned page – in the right up corner – copy the URL
4. Open the Show calendars category in Lotus Notes v8.5.x client (in calendar) and click on Add a calendar …
5. Choose the feed and paste copied URL in the URL box (add name, icons, colours etc.) and press ok

Wow – we’ve got wheather forecasts as all day events in the calendar view.