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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.
Weather radar detects precipitation in real time, showing rain, snow and hail across Canada. The live radar above covers southern Ontario and the Atlantic region, updating every 10 minutes with data from Environment Canada’s network of Doppler stations.
What does the live radar above show?
The colour scale indicates intensity: light green for drizzle or light snow, yellow for moderate rain, orange/red for heavy downpours, and pink for hail or mixed precipitation. The loop covers the past two hours, giving you a short-term view of approaching systems. For a wider picture, cross-reference with Canada weather hub or The Weather Network Canada for extended forecasts.
How far does the radar reach?
Each radar station typically has a range of about 250 kilometres. The live radar above composites data from multiple sites — covering Toronto, Ottawa, and extending toward St. John’s NL — but may show gaps over northern Ontario or high terrain. For ontario weather radar 24 hours or toronto weather radar 24 hour loops, the same radar data is available on Weather Today.
How accurate is weather radar environment canada data?
Accuracy is high for precipitation location and intensity, but ground clutter and beam blockage can cause false echoes. For weather radar atlantic canada, coastal fog may appear as light rain occasionally.
Why does radar show colours differently for rain and snow?
Rain reflects radar beams more strongly than dry snow. Wet snow or melting flakes can appear as moderate to heavy returns. Check ontario weather radar live for near-real-time discrimination.
Can I see toronto weather radar live data on my phone?
Yes. The live radar above is mobile-friendly, and links to The Weather Network Canada and Weather Tomorrow Canada offer dedicated radar pages for weather radar near st john’s nl and other regions.