The National Weather Service in Louisville has issued a Frost Advisory, which is in effect from 2 AM EDT to 9 AM EDT Saturday.
The overnight temperature is expected to dip into the low 30s with isolated upper 20s in deeper valleys.
Frost could have impacts on agricultural and horticultural interests. Vegetation sensitive to frost may be damaged or killed if left uncovered.
A Frost Advisory means that widespread frost is expected. Sensitive outdoor plants may be killed if left uncovered.