
Lake-effect snow builds for parts of southern Ontario this weekend
Stay alert for rapidly changing conditions as bands of lake-effect snow blow into parts of southern Ontario this weekend
Friday provided a brief reprieve across the Greater Toronto Area as an approaching clipper unexpectedly shifted its worst impacts to the north, sparing the region and its busy commutes.
However, snow will continue across portions of eastern Ontario through the overnight hours, and parts of southern Ontario will face the prospect of lake-effect snow heading into the weekend.
Stay up-to-date on your local weather alerts, and be sure to check the latest highway conditions before heading out on the roads.
MARCH 2025 OUTLOOK: Canada to see March madness as winter transitions to spring
Into this weekend: Lake-effect snow for parts of southern Ontario
DON’T MISS: Spring’s arrival and time change: March marks new beginnings
Snow arrived for eastern Ontario on Friday evening. This precipitation will continue into the overnight hours for many areas, with the potential for 10-15 cm of snow on tap for Ottawa.

Conditions will remain unsettled heading into Saturday as temperatures drop significantly and gusty winds help whip up bands of lake-effect snow off Lake Huron and Georgian Bay.
Weekend snowfall totals of 10-20 cm are possible in the hardest-hit regions downwind from the lake. Motorists should use caution as gusty winds will reduce visibility within snow squalls as they snake across the region.

Thursday’s snowfall helped push Toronto to record its snowiest February on record. We picked up 78 cm of snow through Feb. 27, just beating Feb. 2008 for the title of snowiest second month of the year. Over in Ottawa, this is the capital city’s snowiest February in 53 years.
The snowy trend won't be ending with the month. More snow is on tap to kick off March as we begin to see a roller-coaster shift into spring.
Stay with The Weather Network for all the latest on conditions across Ontario.