I had almost discounted a changeover to freezing rain on Sunday night into Monday, but I've stayed up late tonight to watch the European model come in. It shows the shallow cold air dipping into Region 8 before the precipitation moves out. Let me start with where the freezing line is at 6AM on Monday morning according to the Euro:
The white line is the 32 degree line and with this setup, I think it may be even farther south than shown by this model, BUT will the precip still be lingering around. The Euro says... yes. Below shows the precip. I have circled the area that shows precip with 32 or below temperatures. The line (dotted blue) that shows where the atmosphere would be cold enough for all snow is still well northwest of the precip:
I'm sleepy, so excuse any typos!