A weather forecast is a prediction about the weather for the next day or the next few days. There are thousands of weather stations around the world that record information about weather. They have instruments to measure temperature, rainfall, wind speed and direction, air pressure, and humidity. Although we have many tools to help us in weather forecasting, weather is still difficult to predict. Weather Techniques page.
Meteorologists use many tools in weather forecasting.
Satellites are used to see the clouds, but they can also be used to measure the temperature of the ground, the clouds, and water. Radars are used for many purposes. They can be used to detect rain by bouncing radio signals off of raindrops. Doppler radar can see wind in addition to precipitation. Read more about satellites and radars .