What should I do if the weather bureau data does not match the weather of the day? I need to issue a weather certificate.

Generally speaking, the meteorological bureau can see the observation data once every three hours, and the location of the observation station may be far from your unit. There are many small and medium-sized strong convective weather in summer, which is normal for your unit weather station not to observe. You should ask them to help you check whether the weather is monitored on the encrypted automatic observation station near your unit (that is, unattended). If there is one near the station, you can issue a certificate. If not, then there is really no way. Besides, you need to pay the weather certificate. Good luck.