All of Midwestern Ontario remains under an Extreme Cold Warning Monday.
Extreme Cold Warnings are issued when very cold temperatures or wind chill creates an elevated risk to health such as frost bite and hypothermia.
Wind chill values will moderate this afternoon as winds ease. Tonight temperatures will once again fall near minus 20 and with light winds, wind chill values are expected to be near minus 30.
Risks are greater for young children, older adults, people with chronic illnesses, people working or exercising outdoors, and those without proper shelter.