Environment Canada has issued an extreme cold warning for the Kawarthas, including Peterborough, Kawartha Lakes, Northumberland, Hastings, and Haliburton.
A period of very cold wind chills overnight on Saturday and early Sunday morning, with wind chill values near or below -30°C.
Extreme cold warnings are issued when very cold temperatures or wind chill creates an elevated risk to health such as frost bite and hypothermia.
With wind chill, frostbite can develop within minutes on exposed skin. Cover up and watch for cold-related symptoms such shortness of breath, chest pain, muscle pain and weakness, numbness and colour change in fingers and toes.