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.
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New Brunswick, NJ (1804)
Tornado destroyed 2 barns, 1 hotel and 3 houses. "The damage done in this village cannot be less than $1,500 or $2,000." New York Evening Post, June 5, 1904.
Waterville, ME (1832)
Kennebec Flood discharged 140,000 cubic feet of water per second -- high stage not equalled until 1901, and not exceeded until 1936.
Lewistown, ME (1911)
101 degrees -- hottest ever in New England during May.