You'll feel the difference when you step outside this morning: low humidity, temperatures in the low 70s.
So enjoy the break - while it lasts. The recent heat wave has ended, but a new one is forming as soon as tomorrow.
Today, though, will be a gorgeous summer day of the type that has been all too rare this year so far.
Highs will be in the upper 80s, but the stickiness is gone. And - get this - lows will actually dip into the 60s tonight.
It might be a good day to give the air conditioner a break. In other words, open the windows.
But it will be a brief respite of the brutal heat wave that ran for more than a week.
A new pattern of 90-plus temperatures prepares to settle over the region for next six days or so.
But it should not be as excruciatingly hot as last week.
Temperatures will start to rise Thursday, with a forecast high of 90. It will only get hotter from there with the heat index rising to 105 by Saturday.
The National Weather Service says the area is heading toward possible all-time high monthly average temperatures.
Through July 26, Philadelphia has seen an average temperature of 82.3. The record is 82.1 set in 1994.
The death toll from this summer's heat in the Philadelphia area has jumped to at least 21, according to the city's Department of Public Health. Of those, 15 deaths came just last weekend.
