- You may be looking for the weather control base on the Moon.
The Weather Control Station was a building in London. It controlled the Earth's weather through the use of a Weather Control Unit. An Ice Warrior invaded the station and killed an operator before destroying the control unit. It was tasked with this mission as any rain would destroy the Martian Seed Pods.
Jamie McCrimmon and Zoe Heriot journeyed to the station and hid from the Ice Warrior. The Second Doctor also arrived and used solar power to kill the Ice Warrior. He bypassed the control unit by reconnecting the wiring. This allowed him to initiate rain, destroying the pods. (TV: The Seeds of Death)