How to determine the correct weather conditions?

The weather forecast of the meteorological station is divided into regions. There are many counties, districts, townships, towns and villages in this area. It is predicted that there will be rain in this area, maybe it will rain in the whole area, maybe it will rain in some places, and it will not rain in some places. So it's not that the weather forecast is inaccurate, but that the area is too large. In addition, climate change is changing rapidly.

So the weather forecast can only be used as a reference, not as a certainty. We should make a general judgment according to the weather conditions these days, and then make two preparations.