Long before phones could show a forecast, people looked up. They watched the clouds, the wind, and the birds, and they made a good guess about the hours ahead.
Thin, feathery clouds high in the sky often mean a change is coming, though not right away. Flat grey clouds that cover everything usually bring steady rain. Tall clouds shaped like towers can bring a storm in the afternoon.
Wind matters too. When the wind shifts direction quickly, the weather often shifts with it. A still, heavy afternoon in summer is a common warning sign before thunder.
None of these signs is certain. A cloud can pass by without dropping any rain at all. But looking up is a habit worth keeping, because it teaches you to notice small changes and to ask what they might mean.