7:00 AM | *Cold frontal passage shaves 10-15 degrees off of today's temperatures...30's and frost possible late tomorrow night/early Thursday*
Paul Dorian
6-Day Philadelphia Forecast
Today
Mainly sunny, breezy, noticeably cooler than yesterday, highs in the mid 50’s
Tonight
Mainly clear, cold, lows in the lower 40’s
Wednesday
Mainly sunny, cool, becoming windy during the afternoon hours, mid-to-upper 50’s for afternoon highs
Wednesday Night
Partly cloudy, breezy, very cold, outside chance for some frost in normally colder spots, mid-to-upper 30’s for late night lows
Thursday
Mainly sunny, cold, upper 40’s
Friday
Mainly sunny early, clouds late, still quite cool, mid 50’s; chance of showers late at night
Saturday
Mainly cloudy, a bit milder, chance of showers, becoming windy late in the day and at night, near 60 degrees
Sunday
Mainly sunny, quite breezy, cold, upper 40’s; chance of widespread frost late at night
Discussion
The pattern shift that began after the passage of Hurricane Michael late last week looks like it is going to result in numerous cold air outbreaks into the eastern US during the second half of October. After a milder start to the new work week on Monday, it’ll be noticeably cooler today following the passage of a cold frontal system. Another strong cold front will arrive late tomorrow with strong winds and temperatures could bottom out in the mid-to-upper 30’s in some spots by early Thursday morning for the first time this season and there can be some frost in the normally colder suburban locations. Unseasonable cold will grip the Mid-Atlantic region on Thursday as highs struggle to reach the 50 degree mark (normal high is now 67 degrees). Yet another cold shot will arrive for the second half of the weekend and Sunday will have a feel of winter to it in parts of the Northeast US; especially, in the higher elevations where there can be a touch of snow in the first Great Lakes snow event. Widespread frost is possible around here late Sunday night/early Monday morning.
Meteorologist Paul Dorian
Perspecta, Inc.
perspectaweather.com