A cold front will bring relief from the heat and humidity across the northeastern United States into midweek.
Air conditioner use and energy demand will be much lower through Wednesday.
There will be a bit of a chill in the air on Monday night across interior New England with temperatures dropping into the 40s F in some areas, making it feel more like mid-September.
"High pressure is providing the Northeast with a break from the oppressive heat and humidity of recent days," AccuWeather Senior Meteorologist Matt Rinde said.
People who have held back on vigorous exercise or manual labor in recent weeks for safety concerns will be able to resume those activities. Those with respiratory or cardiac problems will be able to go outside and get some fresh air.
This change in the pattern is only temporary, however.
Conditions will turn warmer and humidity will build late in the week.
"The break in the heat will be short-lived as southerly winds will return, resulting in the increase in steamy conditions on Thursday and Friday," Rinde said.
High temperatures will likely crack 90 degrees Fahrenheit on Thursday and Friday in Baltimore and Washington, D.C. However, a noticeable jump in humidity will hold off until Friday. AccuWeather RealFeel® Temperatures will be at or above 100 degrees at the end of the week.
While locations from New York City to Boston will not experience oppressive heat and humidity like last week, it will be a reminder that summer is far from over. Temperatures at the end of the week will flirt with 90 degrees. RealFeels® will be closer to 95 degrees with the humidity.
Dry weather is expected through midweek across the Northeast before a system moves into the region late in the week. Pittsburgh, Buffalo and Syracuse, New York, may have a shower or thunderstorm on Thursday.
Additional showers and thunderstorms will spread into interior sections of the Northeast on Friday, but may stop short of big cities along the I-95 corridor.