There's a 50 percent chance of storms from 3 p.m. to 6 p.m. ET on Sunday, according to WTAE in Pittsburgh, and radar predictions indicate that the heaviest rain will fall around 4 p.m. The showers will likely be spotty, though, with intermittent sunshine between.

The National Weather Service reports that the weather in the Oakmont, Pennsylvania, area on Sunday is expected to feature rain showers in the morning and scattered showers throughout the day, with a high of around 76 degrees.