My updated post with the typo in the command line is still awaiting moderation!
Nevertheless, You will find the same story in the post “local-weather-service-onto-a-raspberry-pi-issue given above”. Please have also a closer look at the post from November 5, 2019 at 4:56 pm. If you follow this comments given by @Peter you can have a look in the observations.json file to see a history of the data available right now.