Environment Canada has ended an extreme cold warning for Windsor-Essex and Chatham-Kent.
Meteorologists predicted the temperature, with the wind chill, fell as low as -35 C (-31 F) overnight and early Friday morning.
The Chatham-Kent Public Health Unit has issued a cold weather alert for tonight as temperatures could drop as low as -28 C (-18 F) with the windchill.
A cold weather alert remains in effect from the Windsor-Essex County Health Unit for the late nights and early mornings unit midday Saturday.