The weather app is putting a damper on America's summer plans

Getty Images; Alyssa Powell/BI Maya Haddad Miller has long been fixated on weather apps — especially how they hit her bottom line. Haddad Miller and her dad own Brooklyn Beach Shop in Coney Island, New York, which sells souvenirs and beach gear. When a little rain icon pops up on the ubiquitous weather apps on any given day, it can cut business in half, she says, whether any rain falls or not. "When you talk about weather forecasts, that's our life — we eat, breathe, everything the weather,"…