Serious question since I've never owned a smart phone. Do they not come with a browser? If they do, you can look up your zip code on weather.gov [1] and then expand it to show more details, then bookmark the result. The URL will remain the same for that zip code. At least for the U.S. that is quite accurate. Does the E.U. have a similar site? If you want to hear the weather, then you could bookmark ATIS [2] for your area. Can you launch an app or a bookmarked page using built-in support for voice commands on smart phones?
[1] - https://www.weather.gov/
[2] - https://www.liveatc.net/