You can:
- change the city/location
- click the display location (Barcelona) for 7 day forecast
- drill down by clicking items in window as you mouseover
- get a 6-hourly breakdown of any day in next 3 by clicking 'rainfall' etc
- click windspeed (in Beaufort scale - btf) to get speed in kmph
- check the 'radar' for rain movement etc
select a closer weather station
Simply click items on the left to open a new window and then click on info on display there. To get a 6-hourly breakdown, only the first 3 days have clickable icons.
Use this calculator to change scales.