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.

Championship Sunday was suspended, at least temporarily, as rain began to pour down at Oakmont Country Club for the 2025 U.S. Open.