Mac mini location for Siri temperature query

It appears that devices without a GPS can't convey a location to Siri. My MacMini is at a fixed location and I would like to ask Siri, "What's the current temperature?". It seems to me that this would be something I could set in the System Settings for my Account, etc. My Contacts card even shows my address with the note "Siri Found in Significant Locations". What does Siri need to know where I am? (MacOS = Sequoia 15.2)

[Re-Titled by Moderator]