A change in the weather pattern will signal warmer, more summerlike conditions across the East Coast to bring in the new month.
The first few days of September may feel more like the first few days of July from Baltimore to Boston with above-normal temperatures and an uptick in humidity.
Residents across the Northeast thinking about closing their pools early may want to wait just a bit longer to take advantage of the warmer weather on the way.
This pattern change will also give beachgoers another opportunity to enjoy the East Coast beaches before the summer weather is gone for good.
Temperatures are forecast to near the 90-degree mark as far north as New York City during the first part of the week with AccuWeather.com RealFeel® temperatures nearing 100 F during the afternoon hours.
Showers and thunderstorms are also projected to dot the Northeast on both Monday and Tuesday during the peak of the heat.
"We're going into a warm, moist weather pattern but nobody is going to have widespread or steady rain," said AccuWeather Chief Meteorologist Elliot Abrams.
While the thunderstorms over the Northeast are not expected to become severe, they can still be hazardous, producing frequent lightning and heavy downpours.
This can be enough to put holiday festivities on pause until the storm has passed. If you are in the outdoors and a thunderstorm is approaching, you should seek shelter until the storm has passed.
Looking ahead to the second half of the week, the heat is forecast to gradually ease, but never quite disappear completely.
According to AccuWeather Long-Range Expert Paul Pastelok, "The pattern through the first half of September in the East will generally favor more days with above-average warmth, than days with below-average warmth."
Even though high temperatures along the I-95 corridor will retreat back into the mid- to upper 80s, this is still 5 to 10 degrees above normal when compared to typical highs for the first week of September.
AccuWeather.com Senior Meteorologist Alex Sosnowski adds to Pastelok by saying, "The pattern may guide some tropical systems that develop in the Atlantic toward the southern part of the United States, the Caribbean and Mexico."
One such tropical system may even develop as soon as next week, tracking from the Caribbean towards the Gulf of Mexico.