A Freeze Warning is in effect for Cleveland and all of northern Ohio from 11 p.m. to 11 a.m., with temperatures expected to be 10 to 20 degrees below normal for late April. The National Weather Service predicts that the coldest conditions will occur Sunday night as a deep upper-level trough moves through the Great Lakes region. Showers are expected in the Lake Erie snowbelt, but little to no snow is expected.