After basking in balmy air much of this week, a return to colder weather will be accompanied by multiple rounds of wintry mix into early next week around Philadelphia.
Rain Friday will become mixed with and change to sleet and snow before ending early Saturday morning. Temperatures Friday will start the day near 60 but will fall into the 40s during the afternoon and plunge into the 30s at night.
Odds are against slippery roads around the city and nearby suburbs with the first round, but there can be a couple of inches of snow well north and west of the city with possible slippery travel toward the Poconos and in central Pennsylvania.
After a break during the middle of this weekend, during which cold air will settle in, another storm will head in later Sunday.
That second storm will start cold then become warmer, so that a wintry mix changes to rain in most areas. However, the second storm will bring a greater chance of some slippery spots around the city for a brief time and perhaps more general slippery travel north and west.
A third storm system may or may not track close enough to bring a period of snow, rain or wintry mix for a time on Tuesday.
Multiple Freezes Hit California Vegetables, Fruit
Ice Storm to Center on Arkansas, May Bring Widespread Power Outages
Snow, Wintry Mix to Take Aim From Oklahoma City to St. Louis, Indianapolis and Albany, NY
Tropical Depression Eight could become a tropical storm while brushing the North Carolina coast with rough surf, downpours and locally gusty thunderstorms early this week.
Following several stretches of unseasonable heat in August, September is set to yield lower temperatures across the United Kingdom.
Tropical Depression Nine developed just south of Florida on Sunday and will turn toward the northeastern Gulf Coast of the United States later this week.
Another strong tropical disturbance will move off the coast of Africa early this week and bears watching for strengthening and impact on the Caribbean and the United States during September.
Typhoon Lionrock is poised to make landfall in Japan on Tuesday afternoon local time with heavy rainfall, damaging winds and an inundating storm surge.
Following a stormy weekend across Germany, a period of dry and more seasonable weather is in store this week.
Anchorage, AK (1989)
A total of 9.6 inches of rain -- wettest August on record.
New England (1816)
"Year in which there was no summer", otherwise known to weather historians as "1800 and frozen to death" killing frost once again damages sparse corn corp in northern New England...loss of this and other crops led to severe famine in much of New England that winter...and helped spur western migration in spring of 1817.
New England (1965)
A total of 2.5 inches of snow on top of Mt. Washington set an August record. Vermont had a reading of only 25 degrees, while Nantucket had a chilly 39 degrees. Earliest freeze on record at many stations.