May 10, 2021 – Washington Co., WI – Neighbors across Washington County may want to wrap a blanket around their outdoor plants tonight and tomorrow as the National Weather Service has issued a frost advisory for Washington, Ozaukee, Waukesha and other counties in southern Wisconsin.
Temps have been pretty darn chilly the whole day. The frost advisory starts at midnight and ends at 8 a.m. Tuesday. But frost is possible again later Tuesday night into early Wednesday morning.
Temps could drop to 31 degrees overnight.
Frost could kill sensitive outdoor vegetation if left uncovered.
