An extreme cold warning has been issued for much of the area, including Durham Region, York Region, Kawartha Lakes and Simcoe County.

According to Environment Canada, temperatures between -21 and -28 degrees Celsius are expected overnight Monday (Jan. 10) into the morning, with wind chill values near -30.

“Bitterly cold arctic air combined with light winds will bring extremely cold wind chills to the regions beginning near midnight,” the warning reads.

“This is the coldest air so far this season. Wind chills will improve Tuesday morning after sunrise.”

Residents are reminded that frostbite can develop within minutes on exposed skin, especially with wind chill.

“Extreme cold puts everyone at risk. Risks are greater for young children, older adults, people with chronic illnesses, people working or exercising outdoors, and those without proper shelter,” the warning reads.

“Dress warmly. Dress in layers that you can remove if you get too warm. The outer layer should be wind resistant.”