Earlier quoted context omitted.
Minus the sales pitch (which I've never had), this is one of the complaints I have about Google Assistant. "By the way, if you ever want to X, just say Y". Just answer the question asked and then shut up immediately. And, preferably, learn to answer the question asked with more brevity, as well. If I ask "what's the high for today", I don't need to hear "In Cityname, expect a high of 90 degrees", just say "90".
The reason they say "In cityname" is probably because they aren't 100% certain of your city. The preface lets you catch the mistake if it makes it.
There are many other interactions in which almost every word is unnecessary noise and can't even be explained away as a confirmation.