Meteorological instruments are tools used to measure and observe weather conditions. Common instruments include the thermometer for temperature, the barometer for atmospheric pressure, and the anemometer for wind speed. These devices help meteorologists gather data to understand and predict weather patterns. Other important instruments include the hygrometer, which measures humidity, and the rain gauge, used to collect and measure precipitation. By using these instruments, scientists can analyze weather trends and provide accurate forecasts, which are essential for daily life and safety.