Seems like there could be ice and snow up there or dry and clear right now. Any first hand experience from anyone today or tomorrow(wednesday)? I might head up Thursday.
This might be useful- it's a page with 3 Teton area webcams: www.nps.gov/grte/photosmultimedia/webcams.htm
And I haven't been up in a while, but last word is that there is ice in the chimneys on the OS, but the Upper Exum is pretty clear. Careful in the shady spots, for sure. A couple of days of good rain Mon/Tues of this week would reinforce that. Here's another good resource: www.wyomingwhiskey.org/
Camped in GTNP last week it was 30 degrees at base of the grand in early AM Climbed exum last month is was cold the whole time. Didn't see much snow, but I'm sure it's going to be cold up there.