Wondering what clothes to bring to the Bergtagung? Relax! We don’t know either!
The weather is increasingly erratic over Switzerland at the moment, some days going from cold rain and 10°C in the morning to humid 26°C in the afternoon (in Zürich). Siat, on the other hand, has a bit less frequent weather changes and about the same temperature and rain levels as Laax. So you if you need weather information, Laax’s weather page at Meteocentrale is not too bad.
I put the same information on the wiki, too.

Weather here in Atlantic City is crazy also! We had a COOL June and now a super HOT July! The winter was not cold enough to kill all the fleas, and they are out in full force…every time I went to te beach, I brought some home…stay home now! Cheers to the Swiss! Carl in Atlantic City NJ
Well, at least your weather still has the decency of coming packaged in days and months!
Another day of chaos today in Zürich, we had 14 degrees, humid, cloudy sky this morning. Then it got dark for quite a while, followed by sunshine and about 22 degrees. Next, a small thunderstorm with lots of rain, we’re back down to 10 - 13°C. Now there’s sun again, perhaps we’ll go to 25°C before the day is over.
We’re traversing all the climate zones several times every single day