While the weekend started on a wet and mild note, drier air will work into Philadelphia for Sunday. Frigid air will not.
Until the rain departs Saturday evening, there is the potential for urban flooding and travel delays. Thunder and lightning may accompany the rain in some areas.
Temperatures will flirt with record high levels during the storm, especially Saturday evening.
In the wake of the storm, dry weather will end the weekend and it will turn cooler, but not colder immediately. This is because the source of the air moving in Sunday will be from the Pacific Ocean.
However, gusty winds could cause some delays at airports in the Northeast on Sunday.
Colder air will return in stages with the first not due in until Wednesday or Thursday. Before that, temperatures will rise to near the 50-degree mark both Monday and Tuesday.
AccuWeather.com Senior Meteorologist Kristina Pydynowski contributed to the content of this story.
Two children were killed and at least another 15 people were injured Monday evening, as strong storms forced a circus tent to collapse in Lancaster, New Hampshire.
Unsettled weather responsible for flooding downpours in Florida last week will gradually lessen over the next several days.
Tropical Storm Guillermo will continue its path toward Hawaii in the coming days bringing large swells and enhanced rainfall to the islands.
After a very hot end to July, some relief is on the way this week for Seattle and other areas of the Northwest.
Building heat across Europe this week will approach monthly and all-time record high levels in several cities.
Casper, WY (1990)
A total of 0.84" of rain. The normal rainfall for all of August is 0.63".
Alexandria, VA (1992)
80 mph wind gust from a thunderstorm.
Flathead Lake, MT (1995)
5-6 foot waves from a distant thunderstorm damaged boats, sea walls, and docks.