Esp8266 Why is the weather bad?

The main reason is that the predictability of weather is closely related to weather types, temporal and spatial scales and forecasting timeliness.

For example, different types of weather or weather elements, such as temperature, rain, wind and humidity, have different predictability and different prediction accuracy. Even the predictability of the same weather type, such as rain, thunderstorm and even rainy weather, is very different. Generally speaking, the predictability of local sudden weather such as thunderstorms is low.