In South Jersey, relentless rain left parts of the area underwater.
To avoid the high waters, one woman was seen using a paddle board to get her and two children through flooded streets.
Heavy rain floods parts of South Jersey as Philadelphia residents brace storms, humidity
In Ocean City, 31st and Simpson streets were inundated.
Another man was seen pushing water out of his vehicle after learning the hard way you cannot drive through high water, even in a truck.
First responders were also on Interstate 76 in Camden after a vehicle overturned and shut down multiple lanes.
The severe weather had a big impact on the roads, travelers told Action News.
"It affected my commute down here a little bit because I live out in Bucks County," said commuter Christa Parlacoski. "I was able to get here safely tonight so I'm thankful for that."
In Philadelphia, the hot and steamy weather kept many city-goers inside, however, some embraced the weekend anyway.
"I'm loving the heat because I'm a July baby and I don't like the cold. I despise it," noted Delores Harris from North Philadelphia.
Heavy rain floods parts of South Jersey as Philadelphia residents brace storms, humidity
Heavy thunderstorms with strong winds and bursts of lightning caused some events to be canceled across the city.
The Wawa Welcome America's Gospel on Independence Mall Concert is now scheduled for Monday at 7 p.m.
It will be held in the same location it was expected to be on Sunday, officials say.
In Lower Merion, Montgomery County, firefighters rushed to Centennial and Conshohocken State roads after strong winds and rain caused a tree to fall onto power lines.
Heavy rain floods parts of South Jersey as Philadelphia residents brace storms, humidity
In Delaware, residents also faced the aftermath of strong winds and rain.
Emergency crews in Wilmington went to Governor Printz Boulevard for flooded vehicles, where they had to rescue several drivers from the high waters.
WATCH | AccuWeather Alert Week: How to stay safe during extreme heat
AccuWeather Alert Week: How to stay safe during extreme heat