Heavy snow expected in Toronto and surrounding areas on Monday morning: Environment Canada

January 4, 2026

Toronto and surrounding areas could see up to 10 centimetres of snow on Monday morning, says Canada’s national weather agency.

Late Sunday afternoon, Environment Canada issued a yellow snowfall warning for Burlington-Oakville, Caledon, the City of Toronto, Halton Hills-Milton, Mississauga-Brampton, Newmarket-Georgina-Northern York Region, Pickering-Oshawa-Southern Durham Region, Uxbridge-Beaverton-Northern Durham Region, and Vaughan-Richmond Hill-Markham.

The agency says there may be reduced visibility at times in heavy snow.

The snowfall is set to begin early Monday morning and should end by afternoon.

“Although modest snowfall amounts are expected, the timing of this snow will be problematic. Because the holiday season is now behind us, and traffic patterns should be closer to normal, this snow is expected to have more of an impact on the Monday morning commute,” Environment Canada said in its warning.

“Travel will likely be challenging. Roads and walkways will likely be difficult to navigate due to accumulating snow. There may be a significant impact on rush hour traffic.”

People in those areas are being advised to allow extra time for getting around on the roads.

Yellow snowfall warnings Jan. 4 Ontario An image of a map showing yellow snowfall warnings in southern Ontario on Jan. 4. (Environment Canada)

The City of Hamilton, meanwhile, is under a special weather statement with snowfall amounts of five to 10 centimetres expected in that region on Monday morning.

As with other parts of the Greater Toronto and Area, visibility at times may be reduced in heavy snow and visibility could be reduced, resulting in extra time needed for travel, Environment Canada says.

The white stuff is expected to begin falling overnight or early Monday morning and should come to an end by Monday afternoon.

The timing of the snowfall in Hamilton could also pose a challenge and may affect the Monday morning commute, the weather agency noted.

The City of Toronto says crews will salt roads as soon as snow falls to “reduce slipperiness and help melt the snow.”

“Winter operations may cause some traffic delays,” the municipality advised in a post on social media.

“When travelling, drive with caution, allow extra time and consider using public transit.”