After locally drenching showers and thunderstorms affect Philadelphia into Saturday night, some sunshine will appear for mom on Sunday.
A slow-moving storm affecting the Central states much of this week will pick up some forward speed this weekend.
As moisture with the storm system drifts through into Saturday night, there is the potential for highly localized urban flooding and the corresponding travel delays and disruptions to outdoor activities. Despite the risk of downpours, the vast majority of the time will be free of rain.
A small area of high pressure should be just strong enough to allow dry air to mix down from aloft and break up clouds and prevent shower activity over much of the mid-Atlantic states on Sunday.
With more of a westerly flow of air, chilly air from the Atlantic Ocean will be shut off. High temperatures will climb to near 80 F through Sunday.
Temperatures are forecast to reach well into the 80s Monday and Tuesday, and could challenge record highs.
Saturday brought the warmest day of the year so far as temperatures reached at least 83. Temperatures could match or exceed warmth from early October (86 F) in the weather pattern through Tuesday.
The stage is for severe thunderstorms to target parts of the Ohio Valley as the weekend comes to an end.
Rounds of rain will bring good news for unusually dry portions of the northeastern United States to start May.
Residents of the southeastern United States may feel like the calendar has flipped ahead to Memorial Day weekend with warm and muggy weather in place for the start of May.
A stormy pattern will persist across the western Gulf Coast into early May, threatening to trigger more flooding from Texas to Mississippi through at least Monday.
May is picking up where April left off with record-challenging warmth surging back into the northwestern United States.
Those looking to traveling or spending the bank holiday outdoors across the United Kingdom will face bouts of rain and wind, but dry conditions will follow by midweek.
Quanah, TX (1993)
Golf ball-sized hail piled up 4" deep.
New England (1854)
Great New England flood. Steady rain for 66 hours -- crest at Hartford 28', 10-1/2", highest ever known to that time, but exceeded in 1936.
Cape Lookout (1883)
Storm tide swept over island, drowning sheep and cattle.