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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the Toronto Post Weather Desk. Data from Environment and Climate Change Canada and other national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
As of today, 134 active weather warnings are posted across Canada, with the highest concentration in southern and northern Ontario. The bulk of these are snowfall and winter storm warnings, with wind chill advisories in the Prairies and blowing snow alerts in Atlantic Canada.
Which regions face the most severe warnings today?
Southern Ontario holds 47 active warnings, including a dozen winter storm warnings for the Greater Toronto Area and the Niagara region, where 15 to 25 centimetres of snow is expected by evening. Northern Ontario adds 31 warnings, mainly extreme cold warnings with wind chills near –40°C. The live ranking above shows Ontario at the top, followed by Quebec with 22 warnings for mixed precipitation and freezing rain.
What is the outlook for the next 10 days?
The weather in Canada 10 days forecast from Environment and Climate Change Canada indicates a persistent Arctic trough will keep temperatures 5 to 10 degrees below seasonal for most of central and eastern Canada. For southern Ontario weather warning today updates, monitor the Weather Warning page. The Weather Today page provides hourly breakdowns for major cities.
Frequently asked questions about Canada weather warnings
How often does Environment Canada update weather warnings?
Environment Canada issues new or updated warnings at least every six hours, but may issue special weather statements at any time when conditions change rapidly. The Weather Radar page shows real-time storm movement.
What is the difference between a watch, a warning, and an advisory?
A watch means conditions are favourable for a hazardous event within 24 to 48 hours. A warning means the event is imminent or occurring. An advisory highlights less severe but still disruptive weather, such as reduced visibility from blowing snow.
Are Ontario weather warnings today more severe than in other provinces?
Yes, currently. Southern Ontario has the highest density of warnings due to a potent clipper system moving across the Great Lakes. The environment canada weather warnings map available on Canada weather hub shows the full national picture.