6:15 AM | **Another hot and humid day in the Mid-Atlantic, but big-time relief by Friday...transition can come with some heavy rainfall...spectacular weekend on the way**
Paul Dorian
6-Day forecast for the Philadelphia, PA metro region
Today
Mainly sunny skies today, but there will be some clouds later in the afternoon, quite hot, humid, isolated showers and thunderstorms by day’s end, highs in the low-to-mid 90’s; SW winds around 5-10 mph
Tonight
Partly cloudy, mild, muggy, isolated showers and thunderstorms are likely, lows in the lower 70’s
Thursday
Clouds and limited sun, not as warm, humid, good chance of showers and thunderstorms, some of the rain can be heavy at times, middle 80’s for afternoon highs
Thursday Night
Mainly cloudy, mild, muggy, good chance of showers and thunderstorms, some of the rain can be heavy at times, middle 60’s for late night lows
Friday
Mainly cloudy, noticeably cooler with well below-normal temperatures, brisk E-NE winds, lingering showers are possible, maybe a thunderstorm, lower 70’s
Saturday
Mainly sunny, pleasant, mid-to-upper 70’s
Sunday
Mainly sunny, comfortable, near 80 degrees
Monday
Mainly sunny, still comfortable, lower 80’s
Discussion
Today will be another very hot and humid day with plenty of sunshine during the morning hours and then increasing clouds later in the afternoon. The late day clouds will be in advance of a slow-moving cold frontal system which can result in isolated showers and thunderstorms through the evening hours. More numerous showers and thunderstorms are likely on Thursday in what will be a big-time transition day for the Mid-Atlantic region from the high heat and humidity of the first half of the week to much cooler conditions by week’s end.
As the cold front slowly grinds its way through the area, low pressure will form along the boundary zone and increase the chances for some heavy rainfall on Thursday and Thursday night and localized flash flooding is a possibility. Showers can linger on Friday - the first day of August - and the day will be much cooler with well below-normal temperatures and a stiff E-NE wind. Clearing skies should develop later Friday night and the first weekend of August should turn out to be one of the nicest of the entire summer season with very comfortable temperatures and low humidity values.
Meteorologist Paul Dorian
Arcfield Weather