How many days in advance can I report the weather forecast now?

According to the time limit of weather forecast, it can be divided into: ① short-term forecast. Forecast the future trend of 1 ~ 6 hours. ② Short-term forecast. Forecast the weather in the next 24 ~ 48 hours. ③ Medium-term forecast. Forecast for the next 3 ~ 15 days. ④ Long-term prediction. Refers to the forecast from 1 month to 1 year. The forecast time limit of 1 ~ 5 years is called ultra-long-term forecast, and the forecast time limit of 10 years is called climate outlook.