I'm at the WW ranger station right now, through the miracle of Verizon Mobile Broadband.
The campground is snow-covered, as is the check-in area and about half of the parking areas. Think in terms of a foot of crusty snow that you post-hole into as the day warms up. Melting has continued with temps in the 40's; there is rain and possible snow predicted for tonight.
The camps downriver are all reported to be ice and snow covered. Getting into some of the camps may be difficult due to ice shelves or other ice buildup.
The top of the ramps and the ramps themselves at the put-in have been plowed, but they are very wet and muddy. I'm inclined to think only four-wheel drive vehicles should try to back trailers down, if you want to try at all.
I was at Cisco yesterday. The road in there was passable, but the parking lot there, the top of the ramp, and the ramp itself have not been plowed. When I walked down the ramp to the river itself, I was postholing into 12-18" of crusty snow.
There will be potable water available at the ranger station over the weekend.
Hope this helps.