According to the local weather forecast, the highest temperature today is 7 degrees, but at noon our thermometer shows 12 degrees. Excuse me, which is accurate?

The weather forecast is accurate. The method of measuring temperature in weather station is different from that in your home. The thermometer is installed in the shutter and will not be affected by sunlight. The thermometers used are all qualified products verified by the technical supervision department. The thermometer purchased by individuals has not been verified by the Technical Supervision Bureau, so the measurement error is large and the measurement method is incorrect. The measured temperature is not the ambient temperature, but the indoor temperature. The measurement methods, measurement objects and measurement errors of the two are different, so there is a big difference.