The accuracy of weather forecast is relative, not absolute. Generally speaking, the accuracy of short-term weather forecast (within one week) is higher, and the accuracy of long-term weather forecast is lower. This is mainly because short-term weather changes can be monitored and predicted more accurately, while long-term weather changes are affected by more factors, such as seasonal changes, climate changes, atmospheric circulation and so on. These factors have great uncertainty, so the accuracy of long-term prediction is low.
In addition, the accuracy of weather forecast is also affected by the accuracy of meteorological monitoring and data collection, the accuracy and complexity of meteorological models and the experience and skills of forecasters. So even with the support of modern science and technology, the accuracy of weather forecast is difficult to reach 100%.
In a word, the weather forecast after 10 is uncertain and not completely accurate. If you need to know more accurate weather conditions, it is recommended to refer to the weather forecast issued by more authoritative meteorological agencies or consult the staff of local meteorological departments.