When compared to the actual air temperatures tonight, tonight's short term forecast models are not handling the cold that well. Fully expect a widespread frost, with a higher risk of freezing conditions before sunrise Tuesday.
From the National Weather Service in Cleveland in their Area Forecast Discussion this evening...
The frontal boundary may slow down or try to stall somewhere in
the region by the end of the week. We will have to watch
closely what is going on down near Florida currently with a
potential tropical system developing. Models show this area of
tropical moisture and system coming around the ridge of high
pressure into the Midwest and Great Lakes Region by Friday and
Saturday. If that is the case and we have a stalled out front in
the region, we will potentially have a very wet and stormy
weather pattern. It is way to early to get specific but
definitely something to be weather aware.