"It will feel like a steam bath from Sunday to Tuesday along much of the region, with the hottest conditions along the Interstate 95 corridor," according to AccuWeather Senior Meteorologist Brett Anderson.

Fans and air conditioners that may have been idle much of the past week will get a workout. Some great swimming and beach weather will arise, according to Anderson.

Those with outdoor plans and construction projects looking for a break in the relentless downpours will have an opportunity, but should prepare to deal with mid-summer heat.

Temperatures are expected to soar into the lower to middle 90s on multiple days from the I-95 corridor in Virginia through most of New England. Highs in the upper 80s to near 90 are anticipated in the central Appalachians and eastern Great Lakes.

Burlington, Vermont, is among the few communities that may set a new daily record high during the upcoming days.

The combination of wet grounds, high humidity and surging temperatures will push AccuWeather RealFeel® Temperatures past 100 during the late-morning and afternoon hours from Washington, D.C., to New York City and Albany, New York, to Boston.

"Sunday could be the worst day in terms of how steamy it feels, since the ground will be the wettest and humidity levels are likely to be the highest," according to AccuWeather Lead Long-Range Meteorologist Paul Pastelok.

Those partaking in rigorous physical activity, including jogging and yard work, should do so with caution with the surge of heat coming up. Take breaks, stay hydrated and avoid the peak heat during the afternoon hours each day.

Download the free AccuWeather app to know exactly how hot it will get.

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Because humidity levels will remain high, there will be the risk of pop-up afternoon and evening thunderstorms, mainly early next week.

During the middle and latter part of next week, winds high in the atmosphere will begin to blow from the northwest and pick up speed. This should begin to lower temperatures and humidity levels in a gradual sense from the Great Lakes to the Appalachians.

There may be a couple of rounds of thunderstorms and localized severe weather.

While urban and flash flooding can occur with any severe thunderstorm in the Northeast, widespread flooding is not expected next week due to the relatively fast-moving nature of the storms in the new weather pattern.

"We don't expect a fire-hose effect of moisture feeding in from the Gulf of Mexico and the subtropical Atlantic next week," Pastelok said. "So, while rain can still be heavy, it will downpour, then longer breaks of dry weather, downpour, then another gap."

Farther south, "the rounds of thunderstorms may be slow-moving enough and repeat frequently enough to keep the risk of flash, stream and river flooding elevated as a result," Anderson said.