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Every Canadian forecast, compared
checkweather.io

Toronto

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The weather map: all three models at once

Env. Canada, European, American side by side across Canada.Live rain radar →
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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

14-day forecast

where the models agree, and where they split

Which forecast is most accurate in Canada?

CheckWeather Score — graded against the weather that actually happened
ProviderCheckWeather Score🌡 Temp💨 Wind🌧 RainRun by
European logo
European ★ Best
Behind Apple Weather, Windy
90
/100rank #1
89±0.6°C97±1.7 km/t8592% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
EC
Env. Canada
Behind The Weather Network
78
/100rank #2
76±1.3°C94±3.0 km/t6983% hitEnvironment and Climate Change CanadaDorval, Québec, Canada
American logo
American
Behind Windy & many free apps
75
/100rank #3
81±1.1°C94±3.0 km/t5575% hitNOAA / NCEP (United States)College Park, Maryland, USA

The CheckWeather Score blends temperature, wind and rain accuracy — each measured against ERA5 (the recorded weather) over the last 30 days across 1302 cities. Lower error means a higher score. The apps you know (AccuWeather, Apple Weather, The Weather Channel) are built on these models.

Popular weather apps — and what powers them

Real app-store ratings, plus the forecast each one runs on
App🍎 App Store▶️ Google PlayForecast source
Apple Weather logoApple Weather
built-iniOS onlyApple's own blend (ex–Dark Sky)
AccuWeather logoAccuWeather
4.61.5M ratings3.52.6M ratingsAccuWeather's own forecast
The Weather Channel logoThe Weather Channel
4.85.9M ratings4.63.6M ratingsIBM / TWC forecast
Windy.com logoWindy.com
4.878K ratings4.7812K ratingsShows ECMWF · GFS · ICON

App-store stars measure the app experience (design, features, reliability) — not forecast accuracy. For accuracy, see the model scoreboard above. Ratings from the US & UK App Store and Google Play, July 2026; they drift over time. Apple Weather is built into iOS, with no separate store rating.

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

Browse all 1,309 cities →

Weather guides