Early signs on the HRRR aren't good, and thermal profiles trended a little cooler on the Euro. That is unfortunate, because ORD essentially escaped the storms overnight with only 0.03" so newly wet ground feedback would be a non-issue.
On another note, it was still 82 at 4 am before the boundary came through, so it sort of gives you an idea of what the starting point might be on Thursday... possibly upper 70s.