A frost advisory was issued for a large portion of central and southern Alberta on Saturday.
Environment Canada said temperatures were expected to fall to freezing overnight as skies clear and light winds pick up.
The affected areas include Athabasca- south to the U.S. border and east to the Saskatchewan border.
Edmonton and Calgary are also included in the advisory.
READ MORE: What to harvest from your garden when frost is in the forecast
The weather agency issues the warnings when temperatures drop to freezing during the growing season. The frost can potentially damage plants and crops.
Similar advisories were issued earlier this week, including various parts of central and northern Alberta.
The advisory was issued for various parts of central and northern Alberta. For a complete list of weather warnings, watches and advisories in the province, click here.
Residents of affected areas are encouraged to cover up plants, especially in frost-prone areas.