A weather instrument is a device used to measure various atmospheric conditions. Common types include the thermometer for temperature, the barometer for air pressure, and the anemometer for wind speed. These instruments help meteorologists and scientists gather data to understand and predict weather patterns. Weather instruments can be found in many forms, from simple handheld devices to complex automated systems. They are essential for daily weather forecasts and play a crucial role in studying climate change. Accurate measurements from these instruments contribute to safety and preparedness during severe weather events.