Weather reporting system consist multiple devices which are playing dynamic role in producing dynamic environmental parameters such as temperature, humidity, and air pollution. It was a tedious task to bring all the devices together and make them interleaving to produce relevant measurement. Recent trends have proven that the IoT has brought all the devices and peripherals in one place to make more flexible and smart measurement. In the traditional weather monitoring system measurement method is not real time, not continuous and also tedious job to take continuous measurement. But, the IoT has completely changed the measurement scenario and improved the consistency of the measurement. In the present work the environmental parameters such rainfall, temperature, humidity, and density of carbon dioxide in the air are measured with sensors. The Arduino Uno card gathers all information from the devices which are associated with its port pins. The information is sent to cloud server for record and future retrieving. At the same time the data security in cloud been assured with encryption and decryption data while retrieving the information from cloud. This enhances the security, ease of accessing the cloud data from mobile applications, provides wise predictions and minimizes the communication overhead.

This paper analyzes the current problems in the data security and privacy of cloud computing. On the basis, this paper mainly research about the legitimacy and validity of research cloud computing process. First of all, this paper understand the concept of cloud computing technology, according to the working principle of the structure model of the cloud computing service analyzes the existence of data security and privacy. Cloud computing service providers for cost savings, or application access layer has invasion of illegal users, so cloud computing task submitted by the legitimate user will not be executed or not executed completely, and the users will get that a random outcome, and task submitted by illegal users may be was carried out. Research on the remote computing verification problem, analysis of the existing research on security work, found that the existing calculation in advance and the second validation of remote computing method for cloud computing users spending too big, this paper combines the characteristics of cloud computing mass data processing, puts forward the remote computing verification method based on the third-party certification, efficient and low consumption to ensure security.