11:05am UPDATE: Environment Canada has ended their Extreme Cold Warning for all of southern Ontario.
Most of the province remains under a Extreme Cold Warning from Environment Canada, as forecasters warn of a prolonged period of severely cold wind chills.
Bitterly cold arctic air is combining with light northerly winds to create wind chills of minus 30 to minus 35 this morning. However, conditions will improve later this morning as temperatures rise.
To view our weather forecast, click here.