A frost advisory has been issued for metro Detroit and much of south-east Michigan, with temperatures expected to fall to around 33F (1C) during the early hours of Saturday, October 17.
The National Weather Service said frost was most likely between 3am and 8am, as a chilly start to the weekend brings the first widespread frost risk of the season to the region.
Frost advisory covers south-east Michigan
The advisory includes Huron, Lenawee, Livingston, Macomb, Monroe, Oakland, Sanilac, St Clair, Washtenaw and Wayne counties.
Residents have been urged to protect tender plants from the cold. Houseplants still outdoors should be brought inside, while sensitive outdoor vegetation can be covered overnight.
Further north, a freeze warning has been issued for Bay, Genesee, Lapeer, Midland, Saginaw, Shiawassee and Tuscola counties.
Temperatures in those areas could fall as low as 30F (-1C) between 3am and 8am on Saturday, creating a risk of damage to crops and other sensitive vegetation.
