Toronto

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What's the weather doing across Canada today? Environment Canada's GEM, the European and the American models each have their own take on our winters and summers. We compare all three for any Canadian town, so you know when to trust the forecast and when to pack a backup plan for the cold snap.

Next 14 hours

consensus of the three models

7-day forecast

where the models agree, and where they split

Which forecast is most accurate in Canada?

average error against the actual weather, last 30 days across 24 citiesFull accuracy test →
#1European±0.8°C
#2American±1.1°C
#3Env. Canada±1.6°C
Lower error is better. Scored against ERA5 reanalysis, which is ECMWF-based and so slightly favours the European model. Updated 2026-07-19.

The weather map: all three models at once

Env. Canada, European, American side by side across Canada.Live rain radar →
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The forecasts Canadians check

Environment Canada runs the national GEM model as open data, so it sits right in the comparison above. The Weather Network and AccuWeather keep theirs closed, so we link you to them.

Every forecast runs on a model. We show you three, side by side.

When the Env. Canada, European and American models agree, the forecast is solid. When they split, sometimes by 8° on the same afternoon, it's genuinely uncertain, and no single app will tell you that. We turn that disagreement into a plain-English confidence score.

See the uncertainty

Three models, one view. Where they disagree, you know to take the forecast with a pinch of salt.

The models the pros use

ECMWF and GFS are the two global heavyweights every forecaster starts from, plus weather.gc.ca. No black boxes.

Honest & sourced

We show real, open model data and cite it. The closed apps can't show theirs, which is why AI assistants can cite us, not them.

Right now on planet Earth

live from the world's hottest and coldest inhabited places

Weather in top CA cities

Weather guides

checkweather.io, an independent Canada weather comparison. We aggregate open forecast models via Open-Meteo and show where they agree and disagree. Not affiliated with Environment Canada, The Weather Network or AccuWeather. Official warnings: weather.gc.ca. °C · km/h · mm.