Heat and humidity are once again surging across the Northeast and will continue to do so into the middle of the week before a significant cool push moves into the region, AccuWeather meteorologists say.

With the jet stream positioned well to the north, hot and humid conditions are forecast for millions in the Northeast through Wednesday. Daily high temperatures will top out well above historical averages for the end of July. Record highs will also be challenged daily along the Interstate 95 corridor.

AccuWeather RealFeel® Temperatures are likely to surpass the 100-degree Fahrenheit mark in the hottest spots during the afternoon.

Nighttime relief will be limited, with temperatures barely getting into the upper 70s in some locations paired with muggy conditions.

Risk for severe thunderstorms, flooding to return ahead of refreshing air