Mar 2, 2011 - 10:59 AM
Hello cooper! That's quite hard to say, as there's hardly anything 'typical' about weather in the Swiss mountains. Over the past years, there have been many summers with a warm and friendly June and with little or no rain at that time of the month, but the exact opposite is possible as well. If you're lucky, you'll have about two rainy days per week, but that's no prediction at all. Some averages, such as temperature and rain diagrams for Interlaken (close to Wengen) can be found at the Meteoschweiz website
. I hope these data give you some information.