Very warm and humid air will surge back across the mid-Atlantic and Northeast for the first part of the week, but the sticky air's presence will not last long.
As high pressure moves off the Atlantic Coast, the door will open for the steamy air to spread over the rest of the Northeast Tuesday through Wednesday.
It is not just an increase in humidity headed to the Northeast and mid-Atlantic but also soaring temperatures.
Wednesday is shaping up to be the hottest day of the new week with temperatures reaching or cracking the 90-degree mark in Washington, D.C., Baltimore, Philadelphia and Newark, New Jersey.
Albany and Syracuse, New York; Hartford, Connecticut; Boston; Concord, New Hampshire; and Burlington, Vermont, will also heat up to around 90 F.
AccuWeather RealFeel® temperatures will surge well into the 90s in many urban areas in the I-95 zone on Wednesday afternoon. In parts of Virginia, Maryland, Delaware and interior New Jersey, RealFeel temperatures may approach 100 degrees for a time.
A breeze from the ocean will keep temperatures in check at most beaches.
The combination of the heat and humidity will create hazards and challenges for those who must engage in strenuous labor or those with respiratory issues. Remember to never leave children or pets in your vehicle, even for just a short time.
There will be little, if any, cooling thunderstorms to bring temporary relief each afternoon along the I-95 corridor of the Northeast through Wednesday.
Washington, D.C., and Baltimore have the greatest opportunity of a spotty afternoon thunderstorm sneaking in from the northern and western suburbs.
The majority of thunderstorm activity through Tuesday will be confined to the South and Appalachians. Storms much of North Carolina and portions of South Carolina, Georgia and Alabama produced heavy rainfall on Monday. Some of the slow-moving, repeating storms caused flash flooding. A similar setup is possible in parts of the South on Tuesday.
A round of thunderstorms will dot the South and Appalachians on Wednesday as a cold front threatens the Ohio Valley and eastern Great Lakes with severe thunderstorms in the afternoon and evening. Violent thunderstorms will first target the North Central U.S. early in the week.
The front will mark the leading edge of a fresh shot of cooler and less humid air dropping down from Canada and set to sweep into the Northeast by Friday.
AccuWeather.com meteorologists will be monitoring the potential for severe weather along the I-95 corridor as the front swings through on Thursday.
Latest indications point toward places from Philadelphia, New York City and Boston escaping severe weather since the timing of the front's passage and peak daytime heating will not align.
The southern mid-Atlantic, Carolinas and Georgia is where the stage may be set for the front to touch off damaging thunderstorms later Thursday.
Tropical Depression Eight could become a tropical storm while brushing the North Carolina coast with rough surf, downpours and locally gusty thunderstorms early this week.
Following several stretches of unseasonable heat in August, September is set to yield lower temperatures across the United Kingdom.
Tropical Depression Nine developed just south of Florida on Sunday and will turn toward the northeastern Gulf Coast of the United States later this week.
Another strong tropical disturbance will move off the coast of Africa early this week and bears watching for strengthening and impact on the Caribbean and the United States during September.
Typhoon Lionrock is poised to make landfall in Japan on Tuesday afternoon local time with heavy rainfall, damaging winds and an inundating storm surge.
Following a stormy weekend across Germany, a period of dry and more seasonable weather is in store this week.
Pittsburgh, PA (1982)
39 degrees, coldest ever in August.
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.