Temperatures will be near and below freezing at the surface. However, there will be warmer air in the mid levels of the atmosphere, which will lead to sleet and freezing rain.
A mix and snow will be most likely near/and north of Highway 20 where accumulations up to an inch or more are possible. The greatest chance for freezing rain and sleet will be near and southeast of Highway 20, where there could be some icing. This will make for possible travel impacts especially for the evening commute. Winter Weather Advisories and Ice Storm Warnings have been posted for Tuesday afternoon and evening.
Another system arrives late Wednesday afternoon. This one looks to pull in some warmer air with rain possible especially south of Highway 20. Near and north will be in that wintry mix zone of freezing rain and sleet. However, with still some uncertainty in the track, this may wiggle around a bit. Wednesday night into Thursday as the system pulls east it'll wrap in some colder air with a transition to a wintry mix and snow which may lead to some ice/snow accumulations. Stay tuned for further forecast updates regarding this specific system.