In this paper a Li-Fi and Wi-Fi-based weather monitoring system is built using drone. The atmospheric conditions are monitored using the drone and the gathered information is communicated to the ground station using Li-Fi technology. The process of transfer of information involves gathering data using sensors and transfer of data using Li-Fi technology. Data is processed and sent to the receiving station by using Light Fidelity technology. The received data is uploaded to a cloud data base using Wi-Fi technology. Real time data is displayed in an android device using IOT technology. Increased used of wireless communication which used Radio Frequency leads to RF congestion. Light Fidelity system is a best alternative by using a visible light instead of Radio frequency as used by all wireless communication system.

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