Home › Weather › Weather Radar
Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the Canada Edition Weather Desk. Data from Environment and Climate Change Canada and other national met services via Open-Meteo.
Weather radar detects precipitation moving across Canada by sending out radio-wave pulses that bounce off rain, snow, or hail. The live radar above shows current conditions in your region, updated every 10 minutes from Environment and Climate Change Canada’s network of 33 sites from coast to coast.
How does weather radar work across Canada?
Environment and Climate Change Canada operates a national radar network that covers most populated areas. The live radar above uses Doppler technology to measure both the location and intensity of precipitation—light green for drizzle, yellow and orange for moderate rain, red for heavy downpours, and pink or white for snow. For a broader view, the Canada weather hub links to regional composites, including weather radar Atlantic Canada, Ontario weather radar 24 hours, and Toronto weather radar live feeds.
Can I see radar for local towns like St. John’s or Toronto?
Yes. The live radar above can be zoomed to your neighbourhood. For weather radar near St. John’s NL, the Holyrood station covers eastern Newfoundland; for Ontario weather radar live, the King City station tracks the GTA and Lake Ontario shoreline. Check Weather Today for localized city updates, or Canada Weather Warnings when severe thunderstorms or blizzards are detected.
What does “24-hour radar loop” show?
A loop replays the last 24 scans, revealing how precipitation systems move across your area. Helpful for spotting approaching fronts or lake-effect snow bands around Georgian Bay or Lake Erie.
Why is there no radar coverage in the far north?
Canada’s radar network has gaps north of 60° latitude due to low population density. Satellite imagery supplements detection for territories like Nunavut and Yukon.
Can radar detect tornadoes?
Doppler radar detects rotation within storms—a “hook echo” signature often associated with tornadoes. Warnings are issued based on this data, ground reports, and spotter confirmation.