The weather die is designed for roleplaying or storytelling games. It let's you randomly decide what the weather is doing. Its six faces cover the most common weather symbols on forecast maps. You could also use it as a luck-eight ball to predict tomorrow's forecast.
The die has separate sides for snow and rain. If the setting of your game or story is in a climate that would not have one or the other, you can either re-roll it, or use both symbols to mean 'precipitation'. You could replace snow with hail, in less snowy climes, for example, or replace rain with sleet.