As of Sunday morning the entire province of Manitoba remains under an extreme cold warning.
An Arctic ridge of high pressure has allowed for a very cold air mass to settle over southern Saskatchewan and southern Manitoba, with extreme wind chill values of -40°C or colder.
Wind chill values in some regions of southern Saskatchewan and western Manitoba could eclipse the -50 mark tonight into Monday morning.
The bitterly cold air will remain over the Prairies for much of the next week.
Environment Canada is warning of the dangers of extreme cold, and say risks are greater for young children, older adults, people with chronic illnesses, people working or exercising outdoors, and those without proper shelter.