Someone shared a weather story card

Story cards come from real backyard weather stations. The readings are the station's own sensors, and the write-up is composed by the owner's own Zasder Weather server from what those sensors recorded. It is not a forecast, and nothing in it was fetched from a weather service.

Zasder Weather is an iPhone, Apple Watch and Mac app that pairs with a small open-source server you control. Since version 1.9 the app can build that server for you. The setup guide takes about ten minutes.