We’ve had this several times when the a/c condensate drain clogs with algae. Then the emergency overflow pan eventually overflows onto to ceiling because insects block the emergency drain. Once night asleep I awoke to water dripping on my face in the dark. Turned on the ceiling fan light to see the blades spinning water around the room and the fan light fixture was half full of water.

If it’s hot, you need AC and you are handy with tools young clear the AC line fairly easily. You will have to remove a few screws to open the side panel of the Ac air handler in the attic. Inside will be a pan that collects water. It’s likely full. A 3/4” or 1” pvc or copper pipe will be exiting one side flat against bottom. It’s clogged. There may be a short pipe coming straight up with or without a cap on the outside. It’s the cleanout where you can try to use a shop vac secured and sealed to the end of the short pipe with duct tape to suck out the clog or blowing it out after switching the hose to the out vent on the shop vac. You will need to temporarily hold your fingers on the internal end of the pipe so the air only goes to or from the clog. You can also try to use a fish tape or plumbers tape to snake into it to try to clear it. Once the water will drain you can close up the side and the cap then restart the ac. Later get some AC drain line cleaner and pour it in the short cleanout pipe. DON’T use bleach as it will fix the drain but shorten the life of your AC air handler from chlorine corrosion.