7:00 AM | *Significant cool frontal passage on Friday breaks the back of the heat wave and results in a very nice weekend*
Paul Dorian
6-Day Philadelphia Forecast
Today
Partly sunny, hot, humid, scattered afternoon showers and thunderstorms, any rain that falls can be heavy at times, highs not far from 90 degrees
Tonight
Mainly cloudy, warm, muggy, good chance of showers and thunderstorms, some of the rain can be heavy at times, lows in the mid 70’s
Friday
Mainly cloudy, not as hot, humid, good chance of showers and thunderstorms, some of the rain can be heavy at times, low-to-mid 80’s for afternoon highs
Friday Night
Lingering early clouds and showers will give way to partly cloudy skies, turning noticeably and refreshingly cooler by morning, upper 50’s for overnight lows
Saturday
Mainly sunny, pleasant, near 80 degrees
Sunday
Mainly sunny, still comfortable, lower 80’s
Monday
Mainly sunny, warmer, low-to-mid 80’s
Tuesday
Mainly sunny, quite warm and more humid, mid-to-upper 80’s
Discussion
Hot and humid weather will continue for another day in the Mid-Atlantic, but a significant cool frontal passage on Friday will bring noticeable relief by the weekend. Abnormally strong upper-level ridging over the Northeast US for the past few days is beginning to weaken and shift westward and this will open the door for cooler, drier high pressure from the Northern Plains to take control of our weather pattern for the weekend. Showers and thunderstorms will be scattered this afternoon and then more widespread tonight and on Friday as the cool front slides through the region. Any rain that falls over the next 24-36 hours can be on the heavy side given the excessive humidity levels and slow movement of showers and thunderstorms cells underneath the strong upper-level high pressure ridge.
Meteorologist Paul Dorian
Perspecta, Inc.
perspectaweather.com