47.594754, -79.486592. You absolutely don't have the real weather temperture. -20C instead of -14C

mokaval

jmh2002

Windy does not create any forecast data but instead only visualises forecast and actual data received from various third party providers.

idefix37

@mokaval
In addition, it is important to choose the weather model that gives the best temperature forecasts in your area. In Canada, Windy offers 4 weather models.
Selecting Reported temperature you can compare the observed temperature vs forecasts of each model. It seems that Meteoblue gives the best results near Notre-Dame-du-Nord.

The other models are worse. They show a wider gap between the observed temperature curve and the forecast temperature one.