Raccoons
Raccoons make their dens in tree trunks and underground. During heavy storms, raccoons, like most people, wait out the weather, burrowing into their dens. However, it depends on the severity of the storm. If you only have light rain in your area, then the animal will probably still be out scavenging and hunting. Also, when the rain subsides, the raccoons come out quickly because they can find prey roaming about.Bats
While you may not think rain affects bats, think again. Storms and especially rain interfere with bats' echolocation. Sound waves ricochet off the droplets, making it nearly impossible to navigate and find prey. The rain and wind can also affect a bat's energy level because of increased blood flow and challenging flying conditions. Bats use nearly double the energy to fly during a storm, which is why they typically hunker down instead.