A Frost Advisory will be implemented for Mercer, Darke, Preble, Butler, Montgomery, Miami, Shelby, and and Auglaize counties from 2 a.m. to 9am. Eastern Europe is expected to see significant rainfall, with temperatures falling into the mid-night period. A Freeze Watch will also be in effect for Randolph, Wayne, and Union counties in Indiana. The last freeze typically occurs in late April, so it's prudent to avoid planting until after Mother's Day to be on the safe side. The weather will be short-lived, with a new warming trend expected by Tuesday.