Mostly clear, cool and rain-free weather will continue over the Philadelphia area into Saturday.
High pressure that had its origins from northern Canada will be in control.
The fair weather system will bring bright sunshine each day.
The nights will be mostly clear and cool.
Patchy morning fog along the river valleys to the north and west may slow some travelers down that commute by vehicle.
Later this weekend, the movement of an offshore storm will have to be watched for possible impact on weather and sea conditions along the Atlantic coast, including New Jersey and Delaware.
While heavy rain drenches the Southeast from Alabama to the Carolinas, portions of Florida will be in the path of severe thunderstorms.
Although spring may be in full swing, more than one-third of the Great Lakes remains covered in ice.
Rain will return to Atlanta Friday and Saturday as a storm system moves through to the Southeast.
More clouds will move into Cleveland to wrap up the week along with lower temperatures.
A warmup is in store for Los Angeles that will remain into the weekend and early next week.
A low pressure system has begun to spread heavy rain over parts of the Southeast, bringing the risk of flooding to the area.
Tornadoes in Arkansas, Kansas, Missouri, Iowa, Illinois, Wisconsin, Michigan and Indiana. More than 24 funnels; over 100 killed. Sixty-five dead and $1 million damage in Marshfield, MO.
San Francisco, CA (1906)
Earthquake and fire. Infrequent easterly wind drove flames westward through the city rather than confining them to the downtown harbor area.
Wyoming, South Dakota (1966)
24" of snow and blizzard conditions in South Dakota. 20" of snow at Lander, Wyoming.