In the Netherlands we have the site http://buienradar.nl/ http://buienradar.nl/ It is very popular and it beats looking out of the window by a large margin. Wh

In the Netherlands we have the site http://buienradar.nl/ http://buienradar.nl/ It is very popular and it beats looking out of the window by a large margin. When it is raining you can see very accurately how long it's going to take for it to stop so you can decide if it's worth waiting. When it's not raining but it looks like it could be going to rain you can similarly make good predictions. Note that they're not doing actual prediction, they're just showing radar images of the clouds of the last hour.