i'm always kinda surprised and disappointed when i see fellow canadians pull out their phones to check the weather, and i see the default weather app pop up. these default apps rely upon US weather models, which are different than the Canadian local weather models. they contain different data, make different predictions, and lead to different outcomes. the canadian weather data is tuned for our winters especially, with important information like windchill.
the official canadian weather website is:
https://weather.gc.ca/canada_e.html (english)
https://meteo.gc.ca/canada_f.html (french)
the official apps:
https://apps.apple.com/ca/app/weathercan/id1334221563 (iOS)
https://play.google.com/store/apps/details?id=ca.gc.ec.weather_app_android.ops (android)