7:00 AM | *Chilliest air mass so far this season arrives later today...first frost/freeze possible at mid-week*
Paul Dorian
6-Day forecast for the Philadelphia, Pennsylvania metro region
Today
Mainly sunny, cool, becoming breezy, highs in the upper 50’s; NW winds increasing to 10-20 mph
Tonight
Increasing clouds, cold, lows near 40 degrees
Tuesday
Mainly cloudy, chilly, a few showers are likely, near 50 degrees for afternoon highs
Tuesday Night
Partly cloudy, cold, patchy frost possible late, low-to-mid 30’s for late night lows
Wednesday
Mainly sunny, chilly, near 50 degrees
Thursday
Patchy frost possible early then partly sunny skies, chilly, near 50 degrees
Friday
Partly sunny, chilly, maybe a shower, near 50 degrees
Saturday
Mainly sunny, chilly, near 50 degrees
Discussion
High pressure took control of the weather in the Mid-Atlantic region on Sunday and the new work week will start off with plenty of sunshine, but with cool, breezy conditions. A cold front will slide through the region during the morning without much fanfare (i.e., dry), but its passage will usher in much colder air compared to recent weeks. There will be a couple of chances for the first frost/freeze of the season in the Mid-Atlantic region this week with likely the best chance coming late Wednesday night/early Thursday.
Meteorologist Paul Dorian