It'll be a bit of a gray day in the Philadelphia region this Sunday. This morning, we have a disturbance rolling past with isolated early showers or storms, but it will be later in the day and evening that we'll need to keep an eye on the sky.

After several mild summer weather days, the excessive heat has returned. Additionally, severe weather could be a factor for some Friday night.

As Glenn Frey sang about in the 80s, "The Heat is On" on Friday in the Philadelphia region. We'll be pushing 100 degrees, certainly reaching (and exceeding) when accounting for the humidity and the feel-like temps.