There are lots and lots of possibilities here. Here are some to start you off:

www.meteoswiss.ch Champéry weather forecast from Météo Suisse

www.metcheck.com Champéry weather forecast from Metcheck

www.thermes-parc.com The Val d’Illiez thermal baths - open all year round

www.palladiumdechampery.ch The Palladium Sports Centre - right next door!

www.telechampery.ch for the latest snow and ski lift info

www.champery.ch for local events

www.ski.intermaps.ch an interactive piste map (Swiss side only)

www.bikepark.ch for what you should be doing when the snow melts

www.snorestore.co.uk  for earplugs and more