Are you planning outdoor activities for this weekend? Well, actually you’d better reconsider your plans, because, sadly, the weather won’t be at its best. On Saturday, it will be mainly cloudy with one or two showers during the day. No change on Sunday, with rain particularly likely late in the afternoon. Beside the bad weather, temperatures are also going to drop, above all in the highs which will not exceed 27 degrees on Saturday and 29 on Sunday. Now a little fun fact: do you know that you can easily calculate your distance from a thunderstorm? All you have to do is counting the time between the lightning and the thunder. Light, in fact, goes faster than sound. So the further the thunderstorm, the longer the time between the lightning and the thunder. Considering the propagation speed of sound and light, we can assume that 5 seconds correspond to a distance of about 1,6 kilometres.