7:00 AM | ***Accumulating snow later today/early tonight...untreated roads could get quite slick as temperatures drop...Arctic blast tomorrow night/Thursday***
Paul Dorian
6-Day Philadelphia Forecast
Today
Mainly cloudy, cold, spotty and light snow or a wintry mix possible this morning and mid-day, steadier and heavier precipitation develops this afternoon and it should change to all snow late, untreated roads could get quite slick by the end of the day, highs in the mid-to-upper 30’s
Tonight
Snow likely before midnight then becoming partly cloudy after midnight, breezy, quite cold by morning with lows in the upper teens
Wednesday
Partly sunny, windy with gusts to 40 mph, quite cold, snow showers are possible, maybe a heavier snow squall, mid 20’s for afternoon highs
Wednesday Night
Mainly clear, bitter cold, windy, near zero degrees for late night lows
Thursday
Mainly sunny, bone-chilling cold, brisk, temperatures struggle to reach the low-to-mid teens
Friday
Mainly cloudy, still quite cold, chance of some snow, lower 20’s
Saturday
Mainly sunny, cold, near 30 degrees
Sunday
Partly sunny, milder, low-to-mid 40’s
Discussion
Low pressure will slide through the eastern Great Lakes region today and a strong cold front will trail on its southern side all the way into the southern states. Spotty and light precipitation may break out this morning and mid-day and then it should become steadire and heavier later this afternoon as the cold front arrives. Precipitation is likely to change to all snow by later in the afternoon and continues this evening. Untreated roads could deteriorate quite quickly late today/early tonight with dropping temperatures. Average accumulations in the area later today/early tonight in the 1-3 inch range, but a bit more than that is possible in western Chester, Upper Bucks and Northern Montgomery Counties and a bit less in Philly. A true Arctic frontal boundary arrives on Wednesday and it is likely to be accompanied by strong wind gusts, possible snow showers, and perhaps even a heavier snow squall. The best chance for snow on Wednesday will be between 10AM and 4PM. Arctic air then blasts into the Mid-Atlantic region on Wednesday night and temperatures could be near zero degrees in many spots by early Thursday morning.
Meteorologist Paul Dorian
Perspecta, Inc.
perspectaweather.com