 Heading into the overnight hours, clouds increase, humidity increases as well. We'll see scattered showers and a few rumbles of thunder through the day tomorrow. It'll be cooler, but the humidity will be higher. Could see about a half inch of rain to up to an inch. I'm 7 News meteorologist Eileen Whalen in the First Alert Weather Center. 81 at Reagan National, now 79 at BWI Marshall and 81 at Dulles.