7:00 AM | **Downpour threat later today and tonight and the potential of strong-to-severe thunderstorms...hot and increasingly humid weather coming for Sunday into Wednesday**
Paul Dorian
6-Day forecast for the Philadelphia, Pennsylvania metro region
Today
Mostly cloudy, warm, humid, nothing more than an occasional shower for the remainder of the morning and the early afternoon hours, showers and thunderstorms more likely by mid-to-late afternoon, some of the late day rain can be heavy at times, some of the storms can be strong-to-severe, highs in the upper 70’s; S-SW winds at 5-15 mph
Tonight
Mainly cloudy, mild, muggy, good chance of showers and thunderstorms, some of the rain can be heavy at times, some of the storms can be strong-to-severe, lows in the mid 60’s
Friday
Mainly cloudy, warm, humid, still the chance of showers and thunderstorms, some of the rain can be heavy at times, some of the storms can be strong, near 80 degrees for afternoon highs
Friday Night
Mainly cloudy in the evening with a shower or thunderstorm possible, turning partly cloudy late, lower 60’s for late night lows
Saturday
Mainly sunny, warm, mid-to-upper 80’s
Sunday
Mainly sunny, very warm and more humid, near 90 degrees
Monday
Mainly sunny, hot and humid, lower 90’s
Tuesday
Partly sunny, hot and humid, chance of showers and thunderstorms, lower 90’s
Discussion
The combination of a moist air mass, surface frontal systems, and a slow-moving upper-level trough is bringing more rainfall to the Mid-Atlantic region. One batch of rain has already moved through the area associated with a northward-moving warm frontal system. Additional showers are coming later today into tonight and there is the threat for some strong-to-severe thunderstorm activity. Any rain later today and tonight can fall heavily at times. The threat for showers and storms will continue on Friday and then high pressure will build into the eastern states by early this weekend. This system will then move into a classic summertime “Bermuda high” position and the result here will be a hot and summer-like stretch of weather from Sunday into Wednesday with increasingly uncomfortable humidity levels.
Meteorologist Paul Dorian
Peraton
peratonweather.com