For the most detailed forecasts I've ever seen, try meteocentrale.ch
. If you click on one of the red dots on their map of the country, you can get forecasts for that location, and for some locations (e.g., see this one for Bullet
in the Jura) you get forecast of temperature, precipitation, sunlight, wind, etc for every hour for the next few days! Might not be any more accurate, but it is very detailed.