7:00 AM | *Significant rain event from later tomorrow night into Friday to be followed by an extended period of colder-than-normal weather*
Paul Dorian
6-Day Philly Forecast
Today
Partly-to-mostly sunny, quite windy with gusts up to 30 mph, cooler than yesterday and cooler-than-normal for this time of year, highs in the low-to-mid 60’s (normal high is now 70 degrees at PHL)
Tonight
Partly cloudy, quite chilly, lows not far from 40 degrees in most suburban locations
Thursday
Increasing clouds, cool, low 60's
Thursday Night
Cloudy with rain likely after midnight, some of the rain can be heavy at times towards daybreak, mild, near 50 degrees for lows
Friday
Periods of rain and possibly a strong thunderstorm, some of the rain will be heavy at times, breezy and becoming warmer with highs in the upper 60's
Saturday
Mostly cloudy, cool, brisk, good chance for afternoon showers, low-to-mid 60’s
Sunday
More clouds than sun, cool, a couple of showers are possible, low 60’s
Monday
Partly sunny, cool, maybe a shower or two, near 60 degrees
Discussion
There are two big weather stories going forward for the I-95 corridor region from DC-to-Philly-to-NYC: (1) a significant rain event from later tomorrow night into Friday and (2) an extended period of colder-than-normal weather from Saturday through Thursday and this overall stretch could even result in accumulating snow in some of the higher elevations of the Mid-Atlantic region. Strong low pressure will form later today in the south-central US and then head towards the Great Lakes region on Thursday. Rain should overspread the I-95 corridor from west-to-east Thursday night and continue into Friday resulting in a soaking rainfall for DC, Philly and NYC of an inch and a half to two inches. Colder-than-normal air pushes in this weekend following the passage of a strong cold front and, thanks to the formation of a classic “omega”-shaped blocking pattern in the upper atmosphere, it will stay colder-than-normal around here and somewhat unsettled for several days.
Meteorologist Paul Dorian
Vencore, Inc.
vencoreweather.com