Traditional Culture Encyclopedia - Weather forecast - What is the error of the weather forecast?

What is the error of the weather forecast?

Weather forecast serves people's production and life, and is indispensable and important information in modern society. Errors in weather forecast are common, and some errors cannot be eliminated. The difference can't be worse, sometimes it's not very accurate, 84% is correct and 90% allows the error to be -5 plus or minus.