I would think next Saturday might be a long shot. The drift at the top of Webster is still pretty big. That said, at the rate things have been been going, you have a pretty good chance of having it cleared by the Saturday after. You might want to walk it to the washout before you commit to driving down it. I heard that it was better last year. Two years ago when I ran it, it was pretty bad. I decided not to drive it again until it was repaired.
If you do go and you can't get down Webster, hopping off I70 at Georgetown and coming over Guanella Pass to 285 would be a viable alternative. Or if Radical Hill is open by then you could always come down Swan River into Jefferson and hit 285 there. (Radical was still drifted in yesterday, too.)
67 FJ40 LC Tan
95 FZJ80 LC Red
99 UZJ100 LC Black
00 VZN185 4Runner Highlander Jade