The National Weather Service has issued a Frost Advisory which will be in effect from 1am (in the NW and NE) or 4am (elsewhere) until 9am Sunday Morning for the entire state. Temperatures tonight will drop into the low to mid 30s, with some of the colder locations possibly dropping into the upper 20s. Sensitive plants will be killed if not protected from the frost. The growing season will also end tonight as well. Frost will last through the mid-morning hours before temperatures climb into the 40s. Cover any plants that you want to keep after the frost tonight.