|Practice 1:||Slot 1:|
|Practice 2:||Slot 2:|
|Race:||Progression:||30 min /|
Weather in Project Cars is based on a slot system, where each slot has a different kind of weather assigned to it. These slots last 30 minutes each (2x progression: 15 minutes, 5x progression: 6 minutes etc.).
Between each slot is a transition slot, where the weather gradually changes. These slots last as long as the "normal" slots.
With this information you can predict the weather in a race. However this can get a bit complicated, as sessions and weather slots do not always line up.
Thus this tool has been developed to easily calculate the weather.