7:00 AM | ***Another powerful Arctic frontal passage to spark snow showers late today/early tonight and possible heavier snow squalls...brutally cold air will follow for Thursday into Saturday...sub-zero temperatures with this next Arctic blast***

6-Day Philly Forecast

Today

Mostly sunny early then becoming cloudy, still quite cold, snow showers possible by the end of the afternoon, highs in the mid-to-upper 20’s

Tonight

Snow showers, possibly a heavier snow squall or two, a coating to an inch of new snow accumulation is possible along with slick spots on roadways, turning breezy and brutally cold by morning with lows not far from 10 degrees

Thursday

Bitter cold with variable clouds, windy, still the chance for a few snow showers, highs only reaching the low-to-middle teens

Thursday Night

Downright fierce cold with sub-zero temperatures by morning (perhaps even record-breaking), partly cloudy skies, still windy with painfully low wind chills

Friday

After a sub-zero start continued bitter cold with partial sunshine, windy early, but calmer as the afternoon progresses, highs may not surpass the 10 degree mark; more sub-zero cold likely late at night with partly cloudy, calm conditions

Saturday

Becoming mostly cloudy, still quite cold, but not as harsh, chance for snow late in the day with a mixed bag possible at night, upper 20’s

Sunday

Mostly cloudy, milder, chance for plain rain after a possible mixed bag of precipitation early, lower 40's

Monday

Partly sunny, colder again, mid 20’s

Discussion

Another powerful Arctic front is approaching the I-95 corridor and it is likely to spark some snow shower activity from late today into tonight and there can be a heavier snow squall or two. In fact, it is not out of the question that there be a quick coating to an inch of new snow given the strong upper-level energy that is associated with this surface frontal system. Once this front passes through the region, incredible cold Arctic air will flood the region. The period from late tonight into early Saturday will be frigid indeed with amazing sub-zero low temperatures likely on Friday and Saturday mornings - perhaps even record-breaking. Saturday starts off very cold, but it’ll turn milder late in the day along with the chance for some snow. By Saturday night and Sunday, it should become mild enough for a mixed bag of precipitation to be followed by plain rain with high temperatures reaching 40 degrees late in the weekend before yet another very cold air mass arrives for the early part of next week.