TetonGravity.com may have more up to date information about la Grave (or la Gr* as everyone says). Currently we’ve had a week of strong southerly winds and rain to 1400 - 1500 meters. At 2200 meters there has been around 70cm of snow over the last week. It should be skiable down to 1000 meters altitude, that is down to the village in la Grave. However there have also been a couple of avalanches in the area recently so take care. Snow is heavy below 1500-1800 meters and wind blown at altitude.
The main lift was closed last Saturday - there is a security commission that decides whether to open or not although there has been a lot of controversy over this over the last couple of years between the town hall and lift operator (and a recent court case). Tomorrow I think the second leg will be closed, there is information here:
http://www.la-grave.com/hiver/observations_patrouilleurs.php