Weather is the condition of the atmosphere over a short period of time. The atmosphere is the layer of air that surrounds Earth.

The science that deals with the study of weather is called meteorology. A meteorologist is a scientist that studies the weather and gives forecasts or projections on how the weather will be in the future. Meteorologists use weather instruments to get information for accurate weather forecasts.

Different places on Earth have different kinds of weather. The weather in your place may be sunny but in other places, it may be windy or rainy. This is due to several components, or parts, that make up the weather in a place at a particular time.