While Sunday featured rising temperatures, even warmer air will reach Philadelphia on Memorial Day.
Temperatures will once again soar on Memorial Day, exceeding Sunday's high and and reaching a high in the middle 80s.
Humidity will also stay low and prevent the holiday from feeling muggy.
The other good news for those attending memorial ceremonies, picnics, concerts and parades on Monday is that thunderstorms streaming into northern New England will stay well to the north of the city and its suburbs.
However, anyone spending a part of the holiday outdoors will wear some sunscreen and sunglasses as the sun will be strong.
Those heading to the beach for opening season should not be fooled by the warm air temperatures. Water temperatures remain on the chilly side and may be dangerous to enter. Surf temperatures range from the upper 50s to the lower 60s. With water this cool, there is a risk of cold water shock.
A warm Monday evening awaits baseball fans planning to go to Citizens Bank Park to watch the city's Phillies take on the Colorado Rockies. Temperatures will fall through the 80s and into the upper 70s during the game.
Showers and thunderstorms will return on Tuesday as the warmth hangs on and humidity increases.
AccuWeather.com MinuteCast™ has the minute-by-minute forecast for your exact location when showers and thunderstorms threaten. Type your city name, select MinuteCast™, and input your street address. On mobile, you can also use your GPS location.
An end to the early taste of summer will come by Wednesday as the passage of a cold front opens the door for noticeably cooler and less humid air to arrive.
AccuWeather.com Meteorologist Jordan Root contributed to the content of this story.
Tropical Depression 8 should strengthen into a tropical storm before impacting the coastal Carolinas with rough surf and heavy downpours early this week.
Tropical Depression 9 developed just south of Florida on Sunday and will turn toward the northeastern Gulf Coast of the United States this week.
Brief relief from heat and humidity will arrive in the northeastern United States at the start of September.
Typhoon Lionrock is poised to make landfall in Japan near Sendai early in the new week with heavy rainfall, damaging winds and an inundating storm surge.
Hawaii is facing two tropical threats this week as Madeline and Lester churn westward.
Hot and dry weather will greet fans and competitors at the 2016 U.S. Open Tennis Championships in Flushing, New York, as play begins Monday, Aug. 29.
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.