By Jim Melwert

PHILADELPHIA (CBS) - The mercury had already risen into the 80s in South Philadelphia when the sun came up this morning. You could feel its strength as it emerged over the horizon, and this was all before 7 a.m.

The forecast for today is sunny and humid with temperatures approaching 100 degrees. That would beat the record of 99 set in 1923. There is an excessive heat warning for the Philadelphia area until 6 a.m. Friday.

If you’re lucky, you get to sit in an air-conditioned office, but not all of us can do that.

John owns a food truck parked on Market Street in Center City. As you can imagine, with the steam tables and the working grill, it gets pretty warm in there. John says he’ll stick it out as long as he can, and if it gets too warm, he’ll pack up and head home:

“We have to make a living, we have to work, but if it gets too hot, I would go home.”

Christina says “no problem” she loves this time of year – especially compared to winter:

“I love it, to tell you the truth. I Love it, I do. Winter, I can’t do it, but I love summer, especially hot and humid.”

Artie tile for a living and he’s working indoors in center city with no AC.

“We’re bottled up. A few fans going, but all it does is blow the hot air around.”

Artie says lots of cold water will get him through what he expects will be a twelve-hour day.

How will you beat the heat? Let us know in the comments below.