"We are confident that we can restore power to some of the affected customers today. Unfortunately, it is already expected that some customers will still be without power on Friday and this weekend. Our teams will remain on the ground until every single client's service has been brought back," said Hydro-Quebec on Twitter.
Environment Canada issued freezing rain alerts for several regions of Canada Wednesday.
Montreal, Laval, the Laurentians, the Outaouais, and parts of the Monteregie were to be the hardest hit areas, with 10 to 20 millimeters of icefall expected.
"Surfaces such as highways, roads, walkways and parking lots will become icy, slippery and hazardous," the warning read.
