7:00 AM | *Significant rain event from late tomorrow into Friday to be followed by extended period of colder-than-normal weather*
Paul Dorian
6-Day DC Forecast
Today
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 mid 60’s (normal high is now 72 degrees at DCA)
Tonight
Partly cloudy, chilly, lows in the mid-to-upper 40’s
Thursday
Becoming cloudy, breezy, cool, chance for rain later in the day, near 65 degrees
Thursday Night
Periods of rain, maybe a strong thunderstorm, some of the rain will be heavy at times, breezy, mild, near 60 degrees for lows
Friday
Periods of rain, maybe a strong thunderstorm, some of the rain will be heavy at times, breezy and becoming warmer, lower 70’s
Saturday
Mostly cloudy, cool, brisk, good chance for afternoon showers, low-to-mid 60’s
Sunday
Partly sunny, cool, maybe a shower or two, low-to-mid 60’s
Monday
Partly sunny, cool, maybe a shower or two, low-to-mid 60’s
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 for tomorrow night and 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 late Thursday 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