does google actually use their own models in consumer products? i'm not an android user, but the weather widget in the google search results for my area always seems to be attributed to weather.com.

The "Google Weather" Android app links to a page that says

>The Google Weather forecast is created from an internal forecasting system that utilizes weather models and observations from global weather agencies.

It also lists the data sources it uses, but is vague about what model(s) it feeds the source data into.

https://support.google.com/websearch/answer/13687874