It gives the idea of a sequence of events taking place, that the game was played straight after the rain.

It indicates a discrepancy between what is anticipated and what actually occurred, for unexpected weather occurred.

It illustrates an additive combination of weather events and events that don't depend on the weather in a cause-and-effeci way.

It shows a contrast between two unrelated events happening at the same time.

It connects two clauses as a cause-effect, providing the meaning of cause to the first clause.