A frost advisory has been issued for Grey-Bruce, Huron-Perth and parts of Wellington County.
With temperatures expected to dip down close to the freezing mark overnight, Environment Canada officials say there is a good chance of frost developing, which could cause damage to sensitive fruit trees and vegetable plants.
The weather agency is advising residents to take preventative measures to protect frost-sensitive plants and trees.
The frost alert also extends into Monday as there is a chance of frost Monday night as well.