Toronto sets record for warmest March 7

FILE - Canadian Geese swim in the cold waters of Lake Ontario overlooking the city of Toronto skyline in Mississauga, Ont., on Thursday, January 24, 2019. THE CANADIAN PRESS/Nathan Denette

TORONTO — Record-breaking warm temperatures in parts of Ontario over the weekend, along with rain, have caused problems on some of the province’s road network, Environment Canada says.

A weather summary from the agency says the temperature at the Toronto airport reached a high of 17.6 Celsius on Saturday, breaking an old record for March 7 of 17.2 C that was set in 1860.

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It says a weather station in the St. Catherine’s area recorded a high temperature on Saturday of 20.3 degrees, while further north in Wiarton, more than 40 millimetres of rain was recorded.

A low-pressure system tracked over Ontario on Saturday, bringing snow and rain to northeastern sections of the province and rain, fog and mild temperatures to southern Ontario.

It led to significant snow melt and reports of ponding on roads in several areas, and Environment Canada says sections of Bruce Road 7 were reported to have been washed out.

The weather agency says dense fog also led to accidents.

This report by The Canadian Press was first published March 8, 2026.