Widespread rain hit the area late Monday night, with the heaviest rainfall coming after midnight. A second burst of heavy rain will follow into Tuesday morning's commute that led to a Flash Flood Watch for much of the Philadelphia region.
NBC10 issued a First Alert from 3 a.m. until 9 a.m. for Tuesday across the viewing area, except for Lehigh and Berks counties. That's due to a Flash Flood threat, NBC10 First Alert Weather chief meteorologist Glenn "Hurricane" Schwartz explained.
By 5:30 a.m. Tuesday, the National Weather Service had trimmed the Flash Flood Watch to South Jersey and Delaware.
Once the rain moves out the heat moves in with humidity.
Glenn says we're in for the hottest week of the summer.
Schwartz predicts temperatures to soar past 90 degrees Wednesday through Saturday. Shore temps stay above 80.