Homeowners insurance does cover water damage from rain; however, the extent of coverage depends on the type of flooding and the specifics of your policy. Typically, only sudden and unexpected rain-induced damage is covered, not gradual damage or flooding from external sources.
While home insurance offers protection against certain rain-related damages, it's essential to be aware of the exclusions. Consider exploring additional coverage options like flood insurance or sewer backup coverage to ensure you have a solid umbrella of protection in case you live in a rain-prone state.