I'm not sure of an acurate long term forecast, and in all the years I've worked in Andorra I've never found one! We have the week ahead on our weather page plus our ow snow report several times a week.
You're best to try not to worry about the weather and just take what comes. You'll be pleased to know we've had the first snow of the season over night
We had a good snowfall overnight last night so things are looking promising. Grandvalira will be preparing the ground just now ready for opening at the end of the month. I would still expect some fluctuations in temperatures over the next couple of weeks as this is usual in November but all is looking well right now.